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On Plesk for Linux mod_status is disabled on upgrades to improve Apache security. This is a one-time operation that occurs during an upgrade. You can manually enable mod_status later if needed.
In the meantime, I enabled the Dovecot debug logs. But unfortunately I could not get any new insights here.
Now, I get new errors:
As I said, my server is not particularly busy.
Plesk process list:
8 GB RAM and 70% free
Now I can find entries in the "server-wide email settings
So far I have not found out where I could set this.
But do you really mean that I have just under 63k of connections on my server? There are max. 100 website visitors at the same time and about 30 mailboxes.
I found the following command. Is that correct?
Now i have changed my config to:
process_limit : 512
mail_max_userip_connections: 64
It looks like fewer "fork() failed" errors are coming in. However, there are still some coming in.
I have big problems with my mail server.
What I have already tried:
# Plesk Repair Mailserver
# disable Fail2Ban
# Plesk Mailserver Max connections = 10240
... max connections pro ip = 5000
# DMARC = yes
# DKIM spam outgoing = yes
Imap mailboxes ~ 30
Sometimes I have zero problems, but often...
I just did apt update on two vserver with 18.04.3 (Ubuntu 20.04). Since then websites and mail are no longer accessible. Webmail works. Can anyone confirm this?
Since upgrading to Plesk 18.0.40 (Ubuntu 20.04), i always get an error when doing an AutoBackup.
Apparently the GZIP function has been changed. Since then I always get the following error: