Question How can I renew the E-Mail-certificates/keys: starttls.m4 and sasl.m4

[Kulturmensch]

How can I renew the E-Mail-certificates/keys: starttls.m4 and sasl.m4 as they contain my <old servername> and I would like to have the <new servername> contained here as well.

/etc/mail/tls/starttls.m4
/etc/mail/sasl/sasl.m4

 

[Monty]

Those files are not part of the Plesk installation.
Plesk is using /etc/postfix/postfix.pem for Postfix and /etc/dovecot/private/dovecot.pem for Dovecot TLS certificates.

Where did you configure those files? Which service is using those files? Did you create them?

 

[Kulturmensch]

They probably come automaticaly with the installation of ubuntu 20.04.3 LTS and reside in the directory as mentioned above. They are shown when using the command
sudo grep -lr "<old hostname>" /etc/*

 

[Monty]

Well, in that case you can ignore them (or delete them if you're feeling brave). Those files are not in use by Plesk.

 

[Kulturmensch]

Thank you for this information, then I will get rid of these files