@Trizek-WMF -- have you heard of this happening with more users? Or have you heard of it happening in the past?

In T291305#7367635, @MMiller_WMF wrote:

@Trizek-WMF -- have you heard of this happening with more users? Or have you heard of it happening in the past?

I haven't heard about it recently on the wikis I'm monitoring, I'll check at more places.
I don't remember if it happen in the past.

I have been missing out on dozens of email notifcations since my report (can include the specific ones too). Please fix this ASAP.

There isn't much that could be investigated without info where to look (wikis, specific edits, etc)

I have provided specific edits in the task description, but will edit in a couple more later on.

I must ask, just in case (but I think you already checked): aren't these emails in your spam folder?

No, my spam folder has been empty all the time.

I checked email notifications delivery functionality in betalabs. The testing showed no issues; the following was tested:

• email delivery global settings for thanks/revert notifications - non-article namespaces were checked too.
• whether the local settings for thanks/revert notifications override the global settings - works as expected.
• all testing was for the email option "Individual notifications as they come in"

The above tests are not exhaustive, of course and the email setup on production may be different.

The following needs to be checked for the user 1234qwer1234qwer4 on enwiki and commonswiki in production (pinging @Urbanecm)

• the email notifications settings - up_property like 'echo-subscriptions-email%' for the user
• bounce_records table (just in case)

In T291305#7596918, @Etonkovidova wrote:

[...]
The following needs to be checked for the user 1234qwer1234qwer4 on enwiki and commonswiki in production (pinging @Urbanecm)

• the email notifications settings - up_property like 'echo-subscriptions-email%' for the user

See P18391.

• bounce_records table (just in case)

I'm not sure what I'm looking for there. Querying by their mail has no results:

mysql:research@dbstore1005.eqiad.wmnet [wikishared]> select * from bounce_records where br_user_email = '<1234qwer1234qwer4> email address';
Empty set (0.001 sec)

mysql:research@dbstore1005.eqiad.wmnet [wikishared]> Bye

Thanks, @Urbanecm_WMF! The email notifications options are in place for receiving "thanks" and "revert" notifications.

I checked the links below (from the task description) - all links redirect to deleted revisions:

Edit: Another batch of undo alerts missing email notifications from Commons:

• https://commons.wikimedia.org/wiki/Special:Diff/prev/593506148
• https://commons.wikimedia.org/wiki/Special:Diff/prev/593506138
• https://commons.wikimedia.org/wiki/Special:Diff/prev/593506094
• https://commons.wikimedia.org/wiki/Special:Diff/prev/593506090
• https://commons.wikimedia.org/wiki/Special:Diff/prev/593506087
• https://commons.wikimedia.org/wiki/Special:Diff/prev/593506064
• https://commons.wikimedia.org/wiki/Special:Diff/prev/593505969

In T291305#7597143, @Etonkovidova wrote:

I checked the links below (from the task description) - all links redirect to deleted revisions:

That doesn't change the fact that they were live when the notifications were sent.

I will try to add a set of other unsent notifications now.