How can I configure multi domain IMAPS POPS and SMTPs with single SSL Certificate

If I have 3 domains hosted on single linux based mail server that are, and I have * signed ssl certificate.

Is there way I can use the same single ssl certificate for all domains for services POP3-SSL ,IMAP-SSL and SMTP-SSL.

Is there way to do url forwarding for pop,imap and smtp in DNS console by configuring somethind as below ==> –> –>
and ==>–>–>


You need a cert with Subject Alternative Names for all hostnames in question.

A wildcard certificate or any other method will not help you. This likely means you need to buy a new cert.

Source : Link , Question Author : gaurav9 , Answer Author : Sven

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