mail server error with SSL on customers name - FQDN server work fine

Hello!

We have a problem with mail server using custumers server name.

If we using mail.domaiuser.com the smtp show "old" SSL and the conection was refused.

If we using cwp FQDN work fine.

Our webserver using correct ssl and work fine too.

How to we "reload" ssl for custumers in mail server ?

Thanks !

When you create the site, Let's Encrypt creates the SSL for mail also, as long as that box is checked, and by default it is.

But Postfix in CWP is configured to use the hostname for SMTP.

You can still use the domain name for clients.

Not many people look at headers anymore to see the hostname, mostly people look at DKIM now a day.

The mail.domainUser.com is available, we using box is checked
When we use openssl s_client -connect mail.Domain.com:443 show the current cert
if whe query openssl s_client -connect mail.Domain.com:465 (smtp with ssl) the Server show olt ssl

We have a problema with nexctclou server and the NC check ssl integration =(

We have 3 clients with same problems, all using NextCloud =(

Sounds like you narrowed down the problem to NextCloud and it's SSL.

CWP doesn't handle or create that certificate.

Have you tried their support forums?