today I got an email by your lets encrypt expiry bot that informed me that one of my certificate will expire in 20 days for the domain mail.level5.de. When I checked it with the command “certbot certificates” on the server I can see that the certificate which includes the domain mail.level5.de is valid for 56 days.
A few weeks ago I changed the server of that domain. To get a new certificate I deleted the certificate on the old server first (certbot delete). Then I assigned the ip-address of the new server to the affected domain. After that I could create the new certificate on the new server without any problems.
But now the difference is that on the new server the domain is included in a certificate with other domains and it is not the name of the certificate any more. On the old server the domain was included in a certificate without any other domain.
Could this be the problem? Can I just ignore the message, because the certificate will be renewed in 16 days on the new server?