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Change Log

HEAD

5.4.0

  • Add O365InteractiveConfiguration helper class to set up MSAL auth for O365.
  • Add exchangelib[msal] installation flavor to match the above.
  • Various bug fixes related to distinguished folders.

5.3.0

  • Fix various issues related to public folders and archive folders
  • Support read-write for Contact.im_addresses
  • Improve reporting of inbox rule validation errors

5.2.1

  • Fix ErrorAccessDenied: Not allowed to access Non IPM folder caused by recent changes in O365.
  • Add more intuitive API for inbox rules
  • Fix various bugs with inbox creation

5.2.0

  • Allow setting a custom Configuration.max_conections in autodiscover mode
  • Add support for inbox rules. See documentation for examples.
  • Fix shared folder access in delegate mode
  • Support subscribing to all folders instead of specific folders

5.1.0

  • Fix QuerySet operations on shared folders
  • Fix globbing on patterns with more than two folder levels
  • Fix case sensitivity of "/" folder navigation
  • Multiple improvements related to consistency and graceful error handling

5.0.3

  • Bugfix release

5.0.2

  • Fix bug where certain folders were being assigned the wrong Python class.

5.0.1

  • Fix PyPI package. No source code changes.

5.0.0

  • Make SOAP-based autodiscovery the default, and remove support for POX-based discovery. This also removes support for autodiscovery on Exchange 2007. Only Account(..., autodiscover=True) is supported again.
  • Deprecated RetryPolicy.may_retry_on_error. Instead, add custom retry logic in RetryPolicy.raise_response_errors.
  • Moved exchangelib.util.RETRY_WAIT to BaseProtocol.RETRY_WAIT.

4.9.0

  • Added support for SOAP-based autodiscovery, in addition to the existing POX (plain old XML) implementation. You can specify the autodiscover implementation explicitly using the autodiscover argument: Account(..., autodiscover="soap") or Account(..., autodiscover="pox"). POX is still the default.

4.8.0

  • Added new OAuth2LegacyCredentials class to support username/password auth over OAuth.

4.7.6

  • Fixed token refresh bug with OAuth2 authentication, again

4.7.5

  • Fixed Protocol.get_free_busy_info() when called with +100 accounts.
  • Allowed configuring DNS timeout for a single nameserver (Autodiscovery.DNS_RESOLVER_ATTRS["timeout""]) and the total query lifetime (Autodiscovery.DNS_RESOLVER_LIFETIME) separately.
  • Fixed token refresh bug with OAuth2 authentication

4.7.4

  • Bugfix release

4.7.3

  • Bugfix release

4.7.2

  • Fixed field name to match API: BaseReplyItem.received_by_representing to BaseReplyItem.received_representing
  • Added fields received_by and received_representing to MeetingRequest, MeetingMessage and MeetingCancellation
  • Fixed AppointmentStateField.CANCELLED enum value.

4.7.1

  • Fixed issue where creating an Account with autodiscover and no config would never set a default retry policy.

4.7.0

  • Fixed some spelling mistakes:
    • ALL_OCCURRENCIES to ALL_OCCURRENCES in exchangelib.items.base
    • Persona.orgnaization_main_phones to Persona.organization_main_phones
  • Removed deprecated methods EWSTimeZone.localize(), EWSTimeZone.normalize(), EWSTimeZone.timezone() and QuerySet.iterator().
  • Disambiguated chunk_size and page_size in querysets and services. Add a new QuerySet.chunk_size attribute and let it replace the task that QuerySet.page_size previously had. Chunk size is the number of items we send in e.g. a GetItem call, while page_size is the number of items we request per page in services like FindItem that support paging.
  • Support creating a proper response when getting a notification request on the callback URL of a push subscription.
  • FolderCollection.subscribe_to_[pull|push|streaming]() now return a single subscription instead of a 1-element generator.
  • FolderCollection now has the same [pull|push|streaming]_subscription() context managers as folders.

4.6.2

  • Fix filtering on array-type extended properties.
  • Exceptions in GetStreamingEvents responses are now raised.
  • Support affinity cookies for pull and streaming subscriptions.

4.6.1

  • Support tzlocal>=4.1
  • Bug fixes for paging in multi-folder requests.

4.6.0

  • Support microsecond precision in EWSDateTime.ewsformat()
  • Remove usage of the multiprocessing module to allow running in AWS Lambda
  • Support tzlocal>=4

4.5.2

  • Make FileAttachment.fp a proper BytesIO implementation
  • Add missing CalendarItem.recurrence_id field
  • Add SingleFolderQuerySet.resolve() to aid accessing a folder shared by a different account:
from exchangelib import Account
from exchangelib.folders import Calendar, SingleFolderQuerySet
from exchangelib.properties import DistinguishedFolderId, Mailbox

account = Account(primary_smtp_address="some_user@example.com", ...)
shared_calendar = SingleFolderQuerySet(
    account=account,
    folder=DistinguishedFolderId(
        id=Calendar.DISTINGUISHED_FOLDER_ID,
        mailbox=Mailbox(email_address="other_user@example.com"),
    ),
).resolve()
  • Minor bugfixes

4.5.1

  • Support updating items in Account.upload(). Previously, only insert was supported.
  • Fixed types for Contact.manager_mailbox and Contact.direct_reports.
  • Support getting text_body field on item attachments.

4.5.0

  • Fixed bug when updating indexed fields on Contact items.
  • Fixed bug preventing parsing of CalendarPermission items in the permission_set field.
  • Add support for parsing push notification POST requests sent from the Exchange server to the callback URL.

4.4.0

  • Add Folder.move() to move folders to a different parent folder.

4.3.0

  • Add context managers Folder.pull_subscription(), Folder.push_subscription() and Folder.streaming_subscription() that handle unsubscriptions automatically.

4.2.0

  • Move util._may_retry_on_error and and util._raise_response_errors to RetryPolicy.may_retry_on_error and RetryPolicy.raise_response_errors, respectively. This allows for easier customization of the retry logic.

4.1.0

4.0.0

  • Add a new max_connections option for the Configuration class, to increase the session pool size on a per-server, per-credentials basis. Useful when exchangelib is used with threads, where one may wish to increase the number of concurrent connections to the server.
  • Add Message.mark_as_junk() and complementary QuerySet.mark_as_junk() methods to mark or un-mark messages as junk email, and optionally move them to the junk folder.
  • Add support for Master Category Lists, also known as User Configurations. These are custom values that can be assigned to folders. Available via Folder.get_user_configuration().
  • Persona objects as returned by QuerySet.people() now support almost all documented fields.
  • Improved QuerySet.people() to call the GetPersona service if at least one field is requested that is not supported by the FindPeople service.
  • Removed the internal caching in QuerySet. It's not necessary in most use cases for exchangelib, and the memory overhead and complexity is not worth the extra effort. This means that .iterator() is now a no-op and marked as deprecated. ATTENTION: If you previously relied on caching of results in QuerySet, you need to do you own caching now.
  • Allow plain date, datetime and zoneinfo.ZoneInfo objects as values for fields and methods. This lowers the barrier for using the library. We still use EWSDate, EWSDateTime and EWSTimeZone for all values returned from the server, but these classes are subclasses of date, datetime and zoneinfo.ZoneInfo objects and instances will behave just like instance of their parent class.

3.3.2

  • Change Kerberos dependency from requests_kerberos to requests_gssapi
  • Let EWSDateTime.from_datetime() accept datetime.datetime objects with tzinfo objects that are dateutil , zoneinfo and pytz instances, in addition to EWSTimeZone.

3.3.1

  • Allow overriding dns.resolver.Resolver class attributes via Autodiscovery.DNS_RESOLVER_ATTRS.

3.3.0

  • Switch EWSTimeZone to be implemented on top of the new zoneinfo module in Python 3.9 instead of pytz . backports.zoneinfo is used for earlier versions of Python. This means that the ÈWSTimeZone methods timezone(), normalize() and localize() methods are now deprecated.
  • Add EWSTimeZone.from_dateutil() to support converting dateutil.tz timezones to EWSTimeZone.
  • Dropped support for Python 3.5 which is EOL per September 2020.
  • Added support for CalendaItem.appointment_state, CalendaItem.conflicting_meetings and CalendarItem.adjacent_meetings fields.
  • Added support for the Message.reminder_message_data field.
  • Added support for Contact.manager_mailbox, Contact.direct_reports and Contact.complete_name fields.
  • Added support for Item.response_objects field.
  • Changed Task.due_date and Tas.start_date fields from datetime to date fields, since the time was being truncated anyway by the server.
  • Added support for Task.recurrence field.
  • Added read-only support for Contact.user_smime_certificate and Contact.ms_exchange_certificate. This means that all fields on all item types are now supported.

3.2.1

  • Fix bug leading to an exception in CalendarItem.cancel().
  • Improve stability of .order_by() in edge cases where sorting must be done client-side.
  • Allow increasing the session pool-size dynamically.
  • Change semantics of .filter(foo__in=[]) to return an empty result. This was previously undefined behavior. Now we adopt the behaviour of Django in this case. This is still undefined behavior for list-type fields.
  • Moved documentation to GitHub Pages and auto-documentation generated by pdoc3.

3.2.0

  • Remove use of ThreadPool objects. Threads were used to implement async HTTP requests, but were creating massive memory leaks. Async requests should be reimplemented using a real async HTTP request package, so this is just an emergency fix. This also lowers the default Protocol.SESSION_POOLSIZE to 1 because no internal code is running multi-threaded anymore.
  • All-day calendar items (created as CalendarItem(is_all_day=True, ...)) now accept EWSDate instances for the start and end values. Similarly, all-day calendar items fetched from the server now return start and end values as EWSDate instances. In this case, start and end values are inclusive; a one-day event starts and ends on the same EWSDate value.
  • Add support for RecurringMasterItemId and OccurrenceItemId elements that allow to request the master recurrence from a CalendarItem occurrence, and to request a specific occurrence from a CalendarItem master recurrence. CalendarItem.master_recurrence() and CalendarItem.occurrence(some_occurrence_index) methods were added to aid this traversal. some_occurrence_index in the last method specifies which item in the list of occurrences to target; CalendarItem.occurrence(3) gets the third occurrence in the recurrence.
  • Change Contact.birthday and Contact.wedding_anniversary from EWSDateTime to EWSDate fields. EWS still expects and sends datetime values but has started to reset the time part to 11:59. Dates are a better match for these two fields anyway.
  • Remove support for len(some_queryset). It had the nasty side-effect of forcing list(some_queryset) to run the query twice, once for pre-allocating the list via the result of len(some_queryset), and then once more to fetch the results. All occurrences of len(some_queryset) can be replaced with some_queryset.count(). Unfortunately, there is no way to keep backwards-compatibility for this feature.
  • Added Account.identity, an attribute to contain extra information for impersonation. Setting Account.identity.upn or Account.identity.sid removes the need for an AD lookup on every request. upn will often be the same as primary_smtp_address, but it is not guaranteed. If you have access to your organization's AD servers, you can look up these values once and add them to your Account object to improve performance of the following requests.
  • Added support for CBA authentication

3.1.1

  • The max_wait argument to FaultTolerance changed semantics. Previously, it triggered when the delay until the next attempt would exceed this value. It now triggers after the given timespan since the first request attempt.
  • Fixed a bug when pagination is combined with max_items (#710)
  • Other minor bug fixes

3.1.0

  • Removed the legacy autodiscover implementation.
  • Added QuerySet.depth() to configure item traversal of querysets. Default is Shallow except for the CommonViews folder where default is Associated.
  • Updating credentials on Account.protocol after getting an UnauthorizedError now works.

3.0.0

  • The new Autodiscover implementation added in 2.2.0 is now default. To switch back to the old implementation, set the environment variable EXCHANGELIB_AUTODISCOVER_VERSION=legacy.
  • Removed support for Python 2

2.2.0

  • Added support for specifying a separate retry policy for the autodiscover service endpoint selection. Set via the exchangelib.autodiscover.legacy.INITIAL_RETRY_POLICY module variable for the the old autodiscover implementation, and via the exchangelib.autodiscover.Autodiscovery.INITIAL_RETRY_POLICY class variable for the new one.
  • Support the authorization code OAuth 2.0 grant type (see issue #698)
  • Removed the RootOfHierarchy.permission_set field. It was causing too many failures in the wild.
  • The full autodiscover response containing all contents of the reponse is now available as Account.ad_response.
  • Added a new Autodiscover implementation that is closer to the specification and easier to debug. To switch to the new implementation, set the environment variable EXCHANGELIB_AUTODISCOVER_VERSION=new. The old one is still the default if the variable is not set, or set to EXCHANGELIB_AUTODISCOVER_VERSION=legacy.
  • The Item.mime_content field was switched back from a string type to a bytes type. It turns out trying to decode the data was an error (see issue #709).

2.1.1

  • Bugfix release.

2.1.0

  • Added support for OAuth 2.0 authentication
  • Fixed a bug in RelativeMonthlyPattern and RelativeYearlyPattern where the weekdays field was thought to be a list, but is in fact a single value. Renamed the field to weekday to reflect the change.
  • Added support for archiving items to the archive mailbox, if the account has one.
  • Added support for getting delegate information on an Account, as Account.delegates.
  • Added support for the ConvertId service. Available as Protocol.convert_ids().

2.0.1

  • Fixed a bug where version 2.x could not open autodiscover cache files generated by version 1.x packages.

2.0.0

  • Item.mime_content is now a text field instead of a binary field. Encoding and decoding is done automatically.

  • The Item.item_id, Folder.folder_id and Occurrence.item_id fields that were renamed to just id in 1.12.0, have now been removed.

  • The Persona.persona_id field was replaced with Persona.id and Persona.changekey, to align with the Item and Folder classes.

  • In addition to bulk deleting via a QuerySet (qs.delete()), it is now possible to also bulk send, move and copy items in a QuerySet (via qs.send(), qs.move() and qs.copy(), respectively).

  • SSPI support was added but dependencies are not installed by default since it only works in Win32 environments. Install as pip install exchangelib[sspi] to get SSPI support. Install with pip install exchangelib[complete] to get both Kerberos and SSPI auth.

  • The custom extern_id field is no longer registered by default. If you require this field, register it manually as part of your setup code on the item types you need:

    from exchangelib import CalendarItem, Message, Contact, Task
from exchangelib.extended_properties import ExternId

CalendarItem.register("extern_id", ExternId)
Message.register("extern_id", ExternId)
Contact.register("extern_id", ExternId)
Task.register("extern_id", ExternId)

  • The ServiceAccount class has been removed. If you want fault tolerance, set it in a Configuration object:

    from exchangelib import Configuration, Credentials, FaultTolerance

c = Credentials("foo", "bar")
config = Configuration(credentials=c, retry_policy=FaultTolerance())

  • It is now possible to use Kerberos and SSPI auth without providing a dummy Credentials('', '') object.

  • The has_ssl argument of Configuration was removed. If you want to connect to a plain HTTP endpoint, pass the full URL in the service_endpoint argument.

  • We no longer look in types.xsd for a hint of which API version the server is running. Instead, we query the service directly, starting with the latest version first.

1.12.5

  • Bugfix release.

1.12.4

  • Fix bug that left out parts of the folder hierarchy when traversing account.root.
  • Fix bug that did not properly find all attachments if an item has a mix of item and file attachments.

1.12.3

  • Add support for reading and writing PermissionSet field on folders.
  • Add support for Exchange 2019 build IDs.

1.12.2

  • Add Protocol.expand_dl() to get members of a distribution list.

1.12.1

  • Lower the session pool size automatically in response to ErrorServerBusy and ErrorTooManyObjectsOpened errors from the server.
  • Unusual slicing and indexing (e.g. inbox.all()[9000] and inbox.all()[9000:9001]) is now efficient.
  • Downloading large attachments is now more memory-efficient. We can now stream the file content without ever storing the full file content in memory, using the new Attachment.fp context manager.

1.12.0

  • Add a MAINFEST.in to ensure the LICENSE file gets included + CHANGELOG.md and README.md to sdist tarball
  • Renamed Item.item_id, Folder.folder_id and Occurrence.item_id to just Item.id, Folder.id and Occurrence.id, respectively. This removes redundancy in the naming and provides consistency. For all classes that have an ID, the ID can now be accessed using the id attribute. Backwards compatibility and deprecation warnings were added.
  • Support folder traversal without creating a full cache of the folder hierarchy first, using the some_folder // 'sub_folder' // 'leaf' (double-slash) syntax.
  • Fix a bug in traversal of public and archive folders. These folder hierarchies are now fully supported.
  • Fix a bug where the timezone of a calendar item changed when the item was fetched and then saved.
  • Kerberos support is now optional and Kerberos dependencies are not installed by default. Install as pip install exchangelib[kerberos] to get Kerberos support.

1.11.4

  • Improve back off handling when receiving ErrorServerBusy error messages from the server
  • Fixed bug where Account.root and its children would point to the root folder of the connecting account instead of the target account when connecting to other accounts.

1.11.3

  • Add experimental Kerberos support. This adds the pykerberos package, which needs the following system packages to be installed on Ubuntu/Debian systems: apt-get install build-essential libssl-dev libffi-dev python-dev libkrb5-dev.

1.11.2

  • Bugfix release

1.11.1

  • Bugfix release

1.11.0

  • Added cancel to CalendarItem and CancelCalendarItem class to allow cancelling meetings that were set up

  • Added accept, decline and tentatively_accept to CalendarItem as wrapper methods

  • Added accept, decline and tentatively_accept to MeetingRequest to respond to incoming invitations

  • Added BaseMeetingItem (inheriting from Item) being used as base for MeetingCancellation, MeetingMessage, MeetingRequest and MeetingResponse

  • Added AssociatedCalendarItemId (property), AssociatedCalendarItemIdField and ReferenceItemIdField

  • Added PostReplyItem

  • Removed Folder.get_folder_by_name() which has been deprecated since version 1.10.2.

  • Added Item.copy(to_folder=some_folder) method which copies an item to the given folder and returns the ID of the new item.

  • We now respect the back off value of an ErrorServerBusy server error.

  • Added support for fetching free/busy availability information ofr a list of accounts.

  • Added Message.reply(), Message.reply_all(), and Message.forward() methods.

  • The full search API now works on single folders and collections of folders, e.g. some_folder.glob('foo*').filter() , some_folder.children.filter() and some_folder.walk().filter().

  • Deprecated EWSService.CHUNKSIZE in favor of a per-request chunk_size available on Account.bulk_foo() methods.

  • Support searching the GAL and other contact folders using some_contact_folder.people().

  • Deprecated the page_size argument for QuerySet.iterator() because it was inconsistent with other API methods. You can still set the page size of a queryset like this:

    qs = a.inbox.filter(...).iterator()
qs.page_size = 123
for item in items:
    print(item)

1.10.7

  • Added support for registering extended properties on folders.
  • Added support for creating, updating, deleting and emptying folders.

1.10.6

  • Added support for getting and setting Account.oof_settings using the new OofSettings class.
  • Added snake_case named shortcuts to all distinguished folders on the Account model. E.g. Account.search_folders.

1.10.5

  • Bugfix release

1.10.4

  • Added support for most item fields. The remaining ones are mentioned in issue #203.

1.10.3

  • Added an exchangelib.util.PrettyXmlHandler log handler which will pretty-print and highlight XML requests and responses.

1.10.2

  • Greatly improved folder navigation. See the 'Folders' section in the README
  • Added deprecation warnings for Account.folders and Folder.get_folder_by_name()

1.10.1

  • Bugfix release

1.10.0

  • Removed the verify_ssl argument to Account, discover and Configuration. If you need to disable TLS verification, register a custom HTTPAdapter class. A sample adapter class is provided for convenience:

    from exchangelib.protocol import BaseProtocol, NoVerifyHTTPAdapter

BaseProtocol.HTTP_ADAPTER_CLS = NoVerifyHTTPAdapter

1.9.6

  • Support new Office365 build numbers

1.9.5

  • Added support for the effective_rightsfield on items and folders.
  • Added support for custom requests transport adapters, to allow proxy support, custom TLS validation etc.
  • Default value for the affected_task_occurrences argument to Item.move_to_trash(), Item.soft_delete() and Item.delete() was changed to 'AllOccurrences' as a less surprising default when working with simple tasks.
  • Added Task.complete() helper method to mark tasks as complete.

1.9.4

  • Added minimal support for the PostItem item type
  • Added support for the DistributionList item type
  • Added support for receiving naive datetimes from the server. They will be localized using the new default_timezone attribute on Account
  • Added experimental support for recurring calendar items. See examples in issue #37.

1.9.3

  • Improved support for filter(), .only(), .order_by() etc. on indexed properties. It is now possible to specify labels and subfields, e.g. .filter(phone_numbers=PhoneNumber(label='CarPhone', phone_number='123')) .filter(phone_numbers__CarPhone='123'), .filter(physical_addresses__Home__street='Elm St. 123'), .only('physical_addresses__Home__street')` etc.
  • Improved performance of .order_by() when sorting on multiple fields.
  • Implemented QueryString search. You can now filter using an EWS QueryString, e.g. filter('subject:XXX')

1.9.2

  • Added EWSTimeZone.localzone() to get the local timezone
  • Support some_folder.get(item_id=..., changekey=...) as a shortcut to get a single item when you know the ID and changekey.
  • Support attachments on Exchange 2007

1.9.1

  • Fixed XML generation for Exchange 2010 and other picky server versions
  • Fixed timezone localization for EWSTimeZone created from a static timezone

1.9.0

  • Expand support for ExtendedProperty to include all possible attributes. This required renaming the property_id attribute to property_set_id.
  • When using the Credentials class, UnauthorizedError is now raised if the credentials are wrong.
  • Add a new version attribute to Configuration, to force the server version if version guessing does not work. Accepts a exchangelib.version.Version object.
  • Rework bulk operations Account.bulk_foo() and Account.fetch() to return some exceptions unraised, if it is deemed the exception does not apply to all items. This means that e.g. fetch() can return a mix of `Item and ErrorItemNotFound instances, if only some of the requested ItemId were valid. Other exceptions will be raised immediately, e.g. ErrorNonExistentMailbox because the exception applies to all items. It is the responsibility of the caller to check the type of the returned values.
  • The Folder class has new attributes total_count, unread_count and child_folder_count, and a refresh() method to update these values.
  • The argument to Account.upload() was renamed from upload_data to just data
  • Support for using a string search expression for Folder.filter() was removed. It was a cool idea but using QuerySet chaining and Q objects is even cooler and provides the same functionality, and more.
  • Add support for reminder_due_by and reminder_minutes_before_start fields on Item objects. Submitted by @vikipha.
  • Added a new ServiceAccount class which is like Credentials but does what is_service_account did before. If you need fault-tolerane and used Credentials(..., is_service_account=True) before, use ServiceAccount now. This also disables fault-tolerance for the Credentials class, which is in line with what most users expected.
  • Added an optional update_fields attribute to save() to specify only some fields to be updated.
  • Code in in folders.py has been split into multiple files, and some classes will have new import locaions. The most commonly used classes have a shortcut in __init__.py
  • Added support for the exists lookup in filters, e.g. my_folder.filter(categories__exists=True|False) to filter on the existence of that field on items in the folder.
  • When filtering, foo__in=value now requires the value to be a list, and foo__contains requires the value to be a list if the field itself is a list, e.g. categories__contains=['a', 'b'].
  • Added support for fields and enum entries that are only supported in some EWS versions
  • Added a new field Item.text_body which is a read-only version of HTML body content, where HTML tags are stripped by the server. Only supported from Exchange 2013 and up.
  • Added a new choice WorkingElsewhere to the CalendarItem.legacy_free_busy_status enum. Only supported from Exchange 2013 and up.

1.8.1

  • Fix completely botched Message.from field renaming in 1.8.0
  • Improve performance of QuerySet slicing and indexing. For example, account.inbox.all()[10] and account.inbox.all()[:10] now only fetch 10 items from the server even though account.inbox.all() could contain thousands of messages.

1.8.0

  • Renamed Message.from field to Message.author. from is a Python keyword so from could only be accessed as Getattr(my_essage, 'from') which is just stupid.

  • Make EWSTimeZone Windows timezone name translation more robust

  • Add read-only Message.message_id which holds the Internet Message Id

  • Memory and speed improvements when sorting querysets using order_by() on a single field.

  • Allow setting Mailbox and Attendee-type attributes as plain strings, e.g.:

    calendar_item.organizer = "anne@example.com"
calendar_item.required_attendees = ["john@example.com", "bill@example.com"]

message.to_recipients = ["john@example.com", "anne@example.com"]

1.7.6

  • Bugfix release

1.7.5

  • Account.fetch() and Folder.fetch() are now generators. They will do nothing before being evaluated.
  • Added optional page_size attribute to QuerySet.iterator() to specify the number of items to return per HTTP request for large query results. Default page_size is 100.
  • Many minor changes to make queries less greedy and return earlier

1.7.4

  • Add Python2 support

1.7.3

  • Implement attachments support. It's now possible to create, delete and get attachments connected to any item type:

    from exchangelib.folders import FileAttachment, ItemAttachment

# Process attachments on existing items
for item in my_folder.all():
    for attachment in item.attachments:
        local_path = os.path.join("/tmp", attachment.name)
        with open(local_path, "wb") as f:
            f.write(attachment.content)
            print("Saved attachment to", local_path)

# Create a new item with an attachment
item = Message(...)
binary_file_content = "Hello from unicode æøå".encode(
    "utf-8"
)  # Or read from file, BytesIO etc.
my_file = FileAttachment(name="my_file.txt", content=binary_file_content)
item.attach(my_file)
my_calendar_item = CalendarItem(...)
my_appointment = ItemAttachment(name="my_appointment", item=my_calendar_item)
item.attach(my_appointment)
item.save()

# Add an attachment on an existing item
my_other_file = FileAttachment(name="my_other_file.txt", content=binary_file_content)
item.attach(my_other_file)

# Remove the attachment again
item.detach(my_file)

    Be aware that adding and deleting attachments from items that are already created in Exchange (items that have an item_id) will update the changekey of the item.

  • Implement Item.headers which contains custom Internet message headers. Primarily useful for Message objects. Read-only for now.

1.7.2

  • Implement the Contact.physical_addresses attribute. This is a list of exchangelib.folders.PhysicalAddress items.

  • Implement the CalendarItem.is_all_day boolean to create all-day appointments.

  • Implement my_folder.export() and my_folder.upload(). Thanks to @SamCB!

  • Fixed Account.folders for non-distinguished folders

  • Added Folder.get_folder_by_name() to make it easier to get sub-folders by name.

  • Implement CalendarView searches as my_calendar.view(start=..., end=...). A view differs from a normal filter() in that a view expands recurring items and returns recurring item occurrences that are valid in the time span of the view.

  • Persistent storage location for autodiscover cache is now platform independent

  • Implemented custom extended properties. To add support for your own custom property, subclass exchangelib.folders.ExtendedProperty and call register() on the item class you want to use the extended property with. When you have registered your extended property, you can use it exactly like you would use any other attribute on this item type. If you change your mind, you can remove the extended property again with deregister():

    class LunchMenu(ExtendedProperty):
    property_id = "12345678-1234-1234-1234-123456781234"
    property_name = "Catering from the cafeteria"
    property_type = "String"


CalendarItem.register("lunch_menu", LunchMenu)
item = CalendarItem(..., lunch_menu="Foie gras et consommé de légumes")
item.save()
CalendarItem.deregister("lunch_menu")

  • Fixed a bug on folder items where an existing HTML body would be converted to text when calling save(). When creating or updating an item body, you can use the two new helper classes exchangelib.Body and exchangelib.HTMLBody to specify if your body should be saved as HTML or text. E.g.:

    item = CalendarItem(...)
# Plain-text body
item.body = Body("Hello UNIX-beard pine user!")
# Also plain-text body, works as before
item.body = "Hello UNIX-beard pine user!"
# Exchange will see this as an HTML body and display nicely in clients
item.body = HTMLBody("<html><body>Hello happy <blink>OWA user!</blink></body></html>")
item.save()

1.7.1

  • Fix bug where fetching items from a folder that can contain multiple item types (e.g. the Deleted Items folder) would only return one item type.

  • Added Item.move(to_folder=...) that moves an item to another folder, and Item.refresh() that updates the Item with data from EWS.

  • Support reverse sort on individual fields in order_by(), e.g. my_folder.all().order_by('subject', '-start')

  • Account.bulk_create() was added to create items that don't need a folder, e.g. Message.send()

  • Account.fetch() was added to fetch items without knowing the containing folder.

  • Implemented SendItem service to send existing messages.

  • Folder.bulk_delete() was moved to Account.bulk_delete()

  • Folder.bulk_update() was moved to Account.bulk_update() and changed to expect a list of (Item, fieldnames) tuples where Item is e.g. a Message instance and fieldnames is a list of attributes names that need updating. E.g.:

    items = []
for i in range(4):
    item = Message(subject="Test %s" % i)
    items.append(item)
account.sent.bulk_create(items=items)

item_changes = []
for i, item in enumerate(items):
    item.subject = "Changed subject" % i
    item_changes.append(item, ["subject"])
account.bulk_update(items=item_changes)

1.7.0

  • Added the is_service_account flag to Credentials. is_service_account=False disables the fault-tolerant error handling policy and enables immediate failures.
  • Configuration now expects a single credentials attribute instead of separate username and password attributes.
  • Added support for distinguished folders Account.trash, Account.drafts, Account.outbox, Account.sent and Account.junk.
  • Renamed Folder.find_items() to Folder.filter()
  • Renamed Folder.add_items() to Folder.bulk_create()
  • Renamed Folder.update_items() to Folder.bulk_update()
  • Renamed Folder.delete_items() to Folder.bulk_delete()
  • Renamed Folder.get_items() to Folder.fetch()
  • Made various policies for message saving, meeting invitation sending, conflict resolution, task occurrences and deletion available on bulk_create(), bulk_update() and bulk_delete().
  • Added convenience methods Item.save(), Item.delete(), Item.soft_delete(), Item.move_to_trash(), and methods Message.send() and Message.send_and_save() that are specific to Message objects. These methods make it easier to create, update and delete single items.
  • Removed fetch(.., with_extra=True) in favor of the more fine-grained fetch(.., only_fields=[...])
  • Added a QuerySet class that supports QuerySet-returning methods filter(), exclude(), only(), order_by(), reverse(), values() and values_list() that all allow for chaining. QuerySet also has methods iterator() , get(), count(), exists() and delete(). All these methods behave like their counterparts in Django.

1.6.2

  • Use of my_folder.with_extra_fields = True to get the extra fields in Item.EXTRA_ITEM_FIELDS is deprecated (it was a kludge anyway). Instead, use my_folder.get_items(ids, with_extra=[True, False]). The default was also changed to True, to avoid head-scratching with newcomers.

1.6.1

  • Simplify Q objects and Restriction.from_source() by using Item attribute names in expressions and kwargs instead of EWS FieldURI values. Change Folder.find_items() to accept either a search expression, or a list of Q objects just like Django filter() does. E.g.:

    ids = account.calendar.find_items(
    "start < '2016-01-02T03:04:05T' and end > '2016-01-01T03:04:05T' and categories in ('foo', 'bar')",
    shape=IdOnly,
)

q1, q2 = (Q(subject__iexact="foo") | Q(subject__contains="bar")), ~Q(
    subject__startswith="baz"
)
ids = account.calendar.find_items(q1, q2, shape=IdOnly)

1.6.0

  • Complete rewrite of Folder.find_items(). The old start, end, subject and categories args are deprecated in favor of a Django QuerySet filter() syntax. The supported lookup types are __gt, __lt, __gte, __lte, __range, __in, __exact, __iexact, __contains, __icontains, __contains, __icontains, __startswith, __istartswith, plus an additional __not which translates to !=. Additionally, all fields on the item are now supported in Folder.find_items().

    WARNING: This change is backwards-incompatible! Old uses of Folder.find_items() like this:

    ids = account.calendar.find_items(
    start=tz.localize(EWSDateTime(year, month, day)),
    end=tz.localize(EWSDateTime(year, month, day + 1)),
    categories=["foo", "bar"],
)

    must be rewritten like this:

    ids = account.calendar.find_items(
    start__lt=tz.localize(EWSDateTime(year, month, day + 1)),
    end__gt=tz.localize(EWSDateTime(year, month, day)),
    categories__contains=["foo", "bar"],
)

    failing to do so will most likely result in empty or wrong results.

  • Added a exchangelib.restrictions.Q class much like Django Q objects that can be used to create even more complex filtering. Q objects must be passed directly to exchangelib.services.FindItem.

1.3.6

  • Don't require sequence arguments to Folder.*_items() methods to support len() (e.g. generators and map instances are now supported)
  • Allow empty sequences as argument to Folder.*_items() methods

1.3.4

  • Add support for required_attendees, optional_attendees and resources attribute on folders.CalendarItem. These are implemented with a new folders.Attendee class.

1.3.3

  • Add support for organizer attribute on CalendarItem. Implemented with a new folders.Mailbox class.

1.2

  • Initial import