Hi

as mentioned in another post this test hangs due to not being launched with -crlf. But this test is not showing anything unusual that can throw light on the original problem. You'd need to get logging about a case that is not working, where logging is from the sender, since it is the sender that suddenly disconnects. If anything the openssl test above shows that there is no issue for this test apart from being launched without -crlf. The fact that this test was launched without -crlf does not imply that this this is the same issue you got on receiving email from cleverreach, which may be a completely unrelated issue.

As far as not being able to access https://de.ssl-tools.net/ it's probably some dns issue. I can access it if I turn off dnssec validation in systemd-resolved. https://dnsviz.net/d/de.ssl-tools.net/dnssec/ shows some issues about dns but I am not sure if those are the real issue or it is some local configuration or issue that stops me accessing it. systemd-resolved returns servfail.

You may however have some issue because https://de.ssl-tools.net/ says that it cannot connect to edge01.systema-online.de and also https://www.ssllabs.com/ssltest/analyze.html?d=edge01.systema-online.de says the same. You might want to investigate further what happens when those testing sites try to connect to your email server.

John


Hi please disregard the point about ssllabs, it seems to work only for web servers. However still worth checking into de-ssl-tools.net errors.

John
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