Recent content by Constantin Kraft

Thanks, @UFHH01, for your informative answer.

It was a firewall issue, which could be solved by disabling the catch-all rule which prevents outgoing traffic. When activated it somehow overrides the rule that explicitly allows outgoing traffic on ports 465 and 587. The corresponding lines in the screenshot are the third and fifth (catch-all...

Hello fellow community! I run SuiteCRM which needs to connect via SMTP to a mail server which I resides on the same host. Despite having opened ports 587 and 465 for ingoing and outgoing traffic I can't `telnet example.com {587,465}` … it produces `Connection refused` (executed in shell on the...