Halo all,

I set 2 domain name in Xeams. Can i use letsencrypt for that 2 domain name

Both domains should use the same value for their MX records. This way, you will only need one certificate. For example, assume your primary domain name is mydomain.com. The A record for your SMTP server should be something like smtp.mydomain.com.

Use the same value (smtp.mydomain.com) for every domain's MX record that is handled by this one Xeams.

Hi,

What should we do if we have two different domains such as:

mydomain.com

mydomain2.com.

Right now we generate letsencrypt certificate using one domain. Will it affect our reputation?

Thanks.

It does not matter how many domains you have. You should only have 1 host name for your MX record, and therefore, only 1 certificate. It won't affect your reputation. For example, every company that uses Google's GSuite to handle their email the MX record points to alt1.aspmx.l.google.com (or similar). This way, Google has to purchase only one certificate that will handle every domain.