Forum notification emails use "to" as "noreply@wordpress.org"

[sterndata]

See ​https://wordpress.org/support/topic/bug-wrong-to-field-in-new-mails/ Email seems to be sent with the receiver BCC'd, while the TO is noreply@…. Expecting the TO address to be set to the email's receiver.

[Ipstenu]

This may be a 'can't fix' as the old system was bbpress1 and this is WordPress so it uses the same email as everything else.

I know we're 'expecting' it to us, but it just means updating filters.

[dd32]

This was a ​change in bbPress2.6 whereby all subscribers to a thread are emailed with a singular email BCC'd, rather than the previous behaviour of individual emails for each subscriber (which didn't always scale).

We can switch this back to sending individual emails if preferred, question is do we really need to?
We may also need to do this to ensure that emails actually get sent though, as noted in the above change, some servers have limits to the number of BCC's allowed (I'm not sure what the w.org email servers limits are)

The code to filter it would be something hooked to wp_mail doing something like..

if ( $to == 'noreply@..' && !empty( bcc ) ) {
   foreach ( bcc ) {
      wp_mail( bcc, $other_args )
   }
  return false;
}

[netweb]

There were further filters added in ​bbPress:changeset:5409, and there is a proposal to use cron for emails in ​#bbPress2797

[Clorith]

We should wait for bbPress to move over to using cron for email scheduling, as this can easily be many looped emails in some situations (as we'd not want to send to multiple recipients to avoid disclosing emails of those involved in a topic between the participants).

[tellyworth]

See also ​https://bbpress.trac.wordpress.org/ticket/3229

[dd32]

I think we can close this, and wait for bbPress to switch up their subscription emails.

Specifically
​https://bbpress.trac.wordpress.org/ticket/2797
and
​https://bbpress.trac.wordpress.org/ticket/3229