How to assign SSL certificate for all or a particular mail domain on a postfix?

Created:

2017-04-03 15:42:57 UTC

Modified:

2017-08-16 16:55:18 UTC

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How to assign SSL certificate for all or a particular mail domain on a postfix?

Applicable to:

  • Plesk for Linux

Question

How to assign SSL certificate for all or a particular mail domain on a postfix?

Answer

Postfix mail server does not support assigning SSL certificates on a domain level.

As well as Postfix SMTP daemon does not support Server Name Indication (SNI). Additionally, according to official postfix documentation: "There are no plans to implement SNI in the Postfix SMTP server." Thus, SSL certificates can be assigned only

Thus, SSL certificates can be assigned only on a server level or IP based.

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