ConfigServer Community Forum

Do you have ConfigServer's MailControl installed?

If not, then go to CSF search system logs and select /var/log/exim_mainlog
then do a search for a blocked email and paste the info here to check it.

Sergio

Have you checked the IP in Black Lists?

Remember that SMTP uses an OUT port to deliver emails, so, the command:

SMTP_PORTS = 25,465,587

means that SMPT can use those ports to send info (on this case emails), so, that is why port 465 is open.

Hi. One of my servers is reporting: /var/log/cxswatch.log: May 10 03:02:00 server1 cxswatch[2256]: Inotify Event Queue Overflow - some activity for [] [] has been lost, you might want to ignore this resource or increase /proc/sys/fs/inotify/max_queued_events May 10 03:08:24 server1 cxswatch[2256]: I...

Are the emails that are not delivered saved under CSF MailQueues?

You have to add your own rule at:
/usr/mailscanner/etc/filename.rules.conf

Sergio

If you have MailScanner installed, look if those emails are not blocked as "high spam", if so, add the sender email to the white list.

Hi.
What means the following LOG Line on CXS?

Inotify Event Queue Overflow - some activity for [] [] has been lost, you might want to ignore this resource or increase /proc/sys/fs/inotify/max_queued_events

Sergio

Yes,
it could work.

It is not working because seems that your regex is not well constructed. Here are two examples of what the regex could be, based on the log line that you wrote: LOG LINE: 40.##.##.## - - [20/Apr/2025:08:39:37 -0500] "GET /wp-admin/css/colors/Admin-Author.php HTTP/1.1" 500 17551 "-&quo...