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Interesting. We're getting these errors and don't have Plesk Email Security installed.

Hi All. I got busy on my festive break and then got busy with paid work after that. Apologies for my lack of reply. The above is still an issue in my book, but very happy for events to supersede this. I see that ARC was implemented in 18.0.58 with an issue still being in focus for some...

People should also be aware of the issue in this thread: https://talk.plesk.com/threads/arc-errors-in-maillog.372933/ As far as I'm aware, this issue currently isn't resolved.

Correction: It auto-upgraded to 18.0.58 Update 1 this morning.

My Plesk server (running Postfix & Dovecot on Ubuntu 22.04) auto-upgraded to 18.0.58 this morning at around 08:15 this morning. I can see that these errors have also been appearing since this time: I've checked and the /etc/domainkeys/<your domain>/default exists in the directory for one of...

Thanks to all for your comments and constructive feedback. I've been busy and not able to reply properly. Hopefully I'll get time to reply after the next few days...

Thanks @danami. Tried that. Great idea, but sadly that doesn't fix the issue. Good that it rules out one more thing though - progress is being made! :) Gmail shows this: and

Thanks Peter. In your like of work you are obviously familiar with email systems and say that this is common. Are you able to elaborate please? Do you know if this is commonly occurring in Postfix, SpamAssassin, Warden, etc. I get that Plesk is an integration of these many products, some of...

I'm comfortable (and have proven & provided the evidence) that within my Plesk server the message body is being Changed / DKIM-corrupted through line wrapping.

I'm running Plesk Obsidian 18.0.57 Update #4 on Ubuntu 22.04.3 LTS. This server was built in February 2023 from the AWS template. Under "Add and Remove Product Components" it shows that we're running Postfix [3.6.4-1ubuntu1-1] as the mail server, SpamAssassin [3.4.6-1ubuntu0.22.04.1], and...

There's a shadow password file which it is read from. That's the bit which reads: --password=`cat /etc/psa/.psa.shadow`

So it is. Thank you for the pointer. Sorry that I completely missed finding this when configuring warden. Excellent. I've configured it now and glad that it'll be maintained. @danami The email scanning still seems to be running sequentially / single-threaded. Could you point me in the...

@danami My next question is that, from monitoring the logs, it looks like your processes run single-sequentially and that lots of email is delayed waiting for the one thread to process. How do I increase the number of threads so that scanning can happen in parallel?

@danami My warden was running REALLY slowly. With your pointers earlier in this thread, I diagnosed this down to some (anonymised) log lines saying: Feb 19 00:40:19 hosting amavis[1744011]: (1744011-01) SA dbg: async: timing: 9.250 X SH:sending.domain.your_DQS_key.zrd.dq.spamhaus.net Feb 19...

I did! First word of my post conveys this.

Voted... After suffering from a server failure and finding that all users have just lost their settings and address books. :-( The simple thing here is that an incompatible backup would be better than no backup at all.

Yes, I fully expect that is the case. Is there a way to run Warden in verbose diagnostic mode to get an output of where it is spending all its time?

No. I get great value from having the DNS BL functionality enabled. That said we had an incident this week when we had obviously passed a threshold and we had about 6 hours of Spamhaus causing perfectly legitimate emails to be blocked, until we temporarily turned it off. The implications of...

Thanks for the really quick response. That's fair enough. I've configured that now and it is already working well. I was hoping that there would be the option to put it in the Spam folder (if the email alias has a mailbox) and not deliver on to any forwarding rules (if they exist). Maybe...

@danami I've spotted that using the "Move" Spam action does not stop emails identified as being spam from being forwarded out of the server, thus relaying spam. Is there a way of configuring Warden Anti-spam and Virus protection so that spams are delivered into the Spam folder of local...