Issue Mails sent by MAILER-DAEMON to spam

[ivanes82]

Server operating system version

AlmaLinux 8.9 (Midnight Oncilla)

Plesk version and microupdate number

Versión 18.0.58

Messages sent from MAILER-DAEMON go to the spam folder. This is a problem, because if a user for example of gmail, sends several mails to our mailboxes and requests delivery confirmation, mailer-deamon sends the confirmation message and this does not approve dmarc, it fails both spf and dkim. Several times I have already been blacklisted for this. This should be considered a bug, as it causes serious errors when sending mails from our server if we are blacklisted.

Being able to sign and approve spf for emails sent from the hostname should be considered a priority, as getting blacklisted is a pretty serious problem.

I don't know if there are plans to fix this, but in the meantime, is there any way to disable mailer-deamon in plesk AlmaLinux 8.9?

 

[Peter Debik]

Please vote for that feature here: Implement support of SPF, DMARC and DKIM anti-spam methods for Plesk email notifications

 

[ivanes82]

Please vote for that feature here: Implement support of SPF, DMARC and DKIM anti-spam methods for Plesk email notifications

I already voted for it, but waiting to fix something so important, that most plesk users probably don't even know it exists, and the day they find out it's because it has caused them problems, is absurd.
This should not be considered a new feature, but a bug, which should be fixed.

 

[Bobbbb]

I'm not sure that the OP issue and the feature request mentioned are the same. My reading of the feature request is that the emails are notifications sent by Plesk. The OP issue sounds like it has to do with MAILER-DAEMON messages (not Plesk generated notifications), possibly related to DSNs (Delivery Status Notifications). However, I could easily be mistaken.

 

[Bobbbb]

This is a problem, because if a user for example of gmail, sends several mails to our mailboxes and requests delivery confirmation, mailer-deamon sends the confirmation message and this does not approve dmarc, it fails both spf and dkim.

It should be possible, in most cases, to have mailer-deamon messages, sent by your own server, pass SPF. Any DSNs my server sends do pass SPF. Your server's full hostname must be set properly, and there needs to an an SPF record containing your server's IP address for your server's full hostname.

 

[Fabian H]

Same here.
If my server has a hostname as a subdomain of a spf/dmarc-enabled domain, the mailer daemon messages are going to the "spam" folder.
This is a critical problem as many users don't regularly check their spam folders. So, a server could get blacklisted without the postmaster's knowledge.

 

[Bobbbb]

What does your DMARC record look like? Make sure you haven't specified "strict mode". You can check here (DMARC Check Tool - Domain Message Authentication Reporting & Conformance Lookup - MxToolBox). It should say you are using "relaxed mode". It's also possible to add a specific SPF record for your server's full hostname or subdomain.

It is still possible that DMARC/SPF/DKIM is not the reason the messages go to spam. It could be the spam filter's other rules.