NextCloud won't talk to mail

[mrmarkuz (Markus Neuberger)]

Did you use the mail server hostname? In the following thread also installing packages in containers and setting ‘app.mail.verify-tls-peer’ => false via occ are explained:

Mail app in Nextcloud not working with NS8 mail server

Maybe you need to use the mail hostname, it’s shown on the status page: [grafik] Without valid cert it worked with following settings when mail is on the same node as nextcloud. [grafik]