Martin Brennan a6be4972a8

FIX: Use our header value instead of custom header on duplicates (#16711) ...

When we build and send emails using MessageBuilder and Email::Sender
we add custom headers defined in SiteSetting.email_custom_headers.
However this was causing errors in cases where the custom headers
defined a header that we already specify in outbound emails (e.g.
the Precedence: list header for topic/post emails).

This commit makes it so we always use the header value defined in Discourse
core if there is a duplicate, discarding the custom header value
from the site setting.

cf. https://meta.discourse.org/t/email-notifications-fail-if-duplicate-headers-exist/222960/14

2022-05-11 13:47:12 +10:00

..

admin_confirmation_mailer.rb

UX: show user email address on "grant admin access" email and UI

2019-11-04 14:47:00 +05:30

download_backup_mailer.rb

DEV: Upgrading Discourse to Zeitwerk (#8098)

2019-10-02 14:01:53 +10:00

group_smtp_mailer.rb

DEV: Upgrade to Rails 7

2022-04-28 11:51:03 +02:00

invite_mailer.rb

DEV: Hash tokens stored from email_tokens (#14493)

2021-11-25 09:34:39 +02:00

rejection_mailer.rb

DEV: Correct spelling mistakes in comments

2021-05-21 13:37:17 +10:00

subscription_mailer.rb

FIX: Use correct URL for unsubscribe (#10077)

2020-06-24 09:31:20 +02:00

test_mailer.rb

FIX: Use our header value instead of custom header on duplicates (#16711)

2022-05-11 13:47:12 +10:00

user_notifications.rb

FEATURE: Site setting to cap the recipient list in notification emails

2022-04-21 10:43:13 +02:00

version_mailer.rb

DEV: Upgrading Discourse to Zeitwerk (#8098)

2019-10-02 14:01:53 +10:00