Hi,

30.10.2019 10:27 - Mathias Waack schrieb:

> Finally I was able to delete these tickets using the generic agent.
> But since then our otrs does not send any email. The communication
> logs shows again more than 1000 open communications and the number
> is constantly growing. Why is otrs queuing these messages without
> sending it? Where can I start searching for the reason?

Depending on your mail configuration, sending takes time. It needs a
working DNS and a good MTA.

On specific (wrong!) Mail configuration OTRS tries to send mails to
non-existend users. Maybe you have this situation.

Check your communication log and try to use the otrs.Console.pl
command to check the mail sending queue and/or delete it.

Check your local syslog and mail log, too.

regards
Florian