Python 3.3 moved various collections abstract base classes from
`collections` to `collections.abc`, but also kept them available in
`collections` for compatibility with Python 2. Python 3.8 will allow
importing only from `collections.abc`.
(`collections.abc` hasn't yet been added to six.moves; see
https://github.com/benjaminp/six/issues/155.)
If you are using an SES ConfigurationSet with open or click tracking
enabled, SES replaces non-ASCII characters with question marks as it
rewrites the message to add tracking, if the bodies are sent with
`Content-Transfer-Encoding: 8bit` (which is Django's default for utf8
body parts).
Force potentially problematic parts to use CTE: quoted-printable
as a workaround.
Fixes#115.
The python3.7-dev environment available on Travis default trusty is
apparently an outdated beta. Released Python 3.7 is only available in
Travis on the xenial platform (and xenial is currently only available
with sudo=true).
This avoids problems with ESPs that don't distinguish *Content-ID*
from attachment filename, where a local hostname ending in ".com" could
cause Gmail to block messages sent with inline attachments.
(Mailgun, Mailjet, Mandrill and SparkPost have APIs affected by this.)
Fixes#112.
Current Travis default Trusty image doesn't support latest Python 3.7.
(The outdated 3.7 alpha it has available is buggy, but is sufficient
for our tests until a Xenial image is ready.)
https://github.com/travis-ci/travis-ci/issues/9069
SendGrid does not always correctly provide the sent Message-ID header value
to a tracking webhook's smtp-id field, making it unreliable to use for Anymail's
`message_id`.
Instead, generate a UUID `message_id` for Anymail tracking, and pass it from
send to webhooks in SendGrid custom args as anymail_id.
Webhooks will fall back to smtp-id for compatibility with previously-sent
messages that didn't have an anymail_id custom arg.
Fixes#108
Discontinue support/testing for Python 3.3 with Django 1.8.
Closes#99
Focus Travis testing on currently-supported Django/Python combinations.
(But keep a few older ones in the matrix, too.)
Delay raising AnymailImproperlyInstalled from webhooks.amazon_ses
until an SES webhook view is instantiated. Allows anymail.urls
to import webhooks.amazon_ses without error.
Fixes#103
Include the name of the field with the the unparsable email address
in AnymailInvalidAddress error messages.
Should help tracking down problems like in #98.
AnymailInternalEvent had some properties that were actually implemented
in AnymailInboundMessage. The event versions were never documented,
and never contained useful data (they were always set to None).
Simplify Postmark tracking webhook code by using new "RecordType"
field introduced with Postmark "modular webhooks". (Rather than
looking for fields that are probably only in certain events.)
Also issue configuration error on inbound url installed as tracking
webhook (and vice versa).
Existing tracking webhook code works fine with updated event payloads.
(So older Anymail versions will work, unmodified, with new Postmark
webhooks.)
Also update older doc links into Postmark docs.
Closes#101
