Vesta Control Panel - Forum

Let me just put it here, because it took me a few days to figure this out, maybe it could help someone.

If you want to retrieve mails into Gmail via secure POP3 connection from a VestaCP mail server, set Dovecot ssl_cert config in /etc/dovecot/conf.d/10-ssl.conf to the full chain cert.

So if you're using Letsencrypt it looks like this: This is important, because as described here Google is strict about the certs:

We do not accept self-signed certificates. For a certificate to be valid it needs to chain up to a valid CA, like one in the Mozilla CA list.

In Gmail POP3 account settings you should use the following settings:

• Email address & Username: [email protected]

• Password: user-password

• POP server: server-domain.com (use the server's TLD, not the mail account's domain and do not add mail. before, unless your cert contains the subdomain)

• Port: 995

• Always use secure connection... checked

Hope I can spare a few days for someone trying to get this working.