Resolved {Solved}Question about mail server SSL/TLS certificate

[LaurentR2D2]

Hello,
Let say that my server domain name is toto.com. I've secured the mail with the Let's encrypt certificate for toto.com. I have a subscription on my server for titi.com. I secure the mail for this domain with the Let's encrypt certificate of titi.com. I configure Apple Mail with the IMAP server mail.titi.com. When I want to get my mail, Apple Mail warn me that the certificate is wrong since it get the toto.com Let's Encrypt certificate and not the titi.com Let's Encrypt certificate, which makes that the domain of the certificate is not the same as the one of the IMAP server used in the configuration of Apple Mail.

What mistake have I done

Thank you

 

[LaurentR2D2]

I've found the answer of my question here :

How to secure a Plesk mail server with an SSL certificate (Let's Encrypt / other certificate authorities)

I've fixed my Apple Mail configuration according to these instructions, and now it works fine