In a word, yes.

I use the same cert for Dovecot and Sendmail. I don’t bother with HTTP, but it would work just fine.

Certs are basically certs — you can use the same one in multiple places.

As for keeping it from things being seen as spam. . . I’m not sure how that would work.

Sean

On Sep 8, 2017, at 3:05 AM, Marco Marco marcomg@hotmail.it wrote:

Hi guys,

I've bought a certificate from the authority for my website to use to access in https mode.

Is it possible to share the same pairs to authenticate the emails sent by postfix and Dovecot in order to avoid that client as Hotmail.it or Gmail intercept these as Spam?

Thank you