The first version of SNI support for Mail is available in Plesk Obsidian: https://docs.plesk.com/release-notes/obsidian/change-log/#18-rc10
You need MailEnable 10.20+ (for Windows) or Postfix 3.4+ and Dovecot (for Linux) to test it.
There are cases when it doesn’t work (e.g., if you connect to mail.domain.com it will not work, please use domain.com in connection settings of your mail client) that’s why we don’t mark it as “available”. We plan to fix these issues soon.
Look at the release notes from yesterday. it is coming!
In February 2019 it would be possible to do. What is the status here?
as far as I saw there is SNI support in Postfix now, right? so what is the status? I know you have to rebuild a lot, but still, it is a major issue for my clients.
Wow - this is sooo needed, guys! This is a must that I can offer professional services.
Thank you for your input! We will consider this functionality in upcoming releases if it will be popular.
Everyone, please continue voting for this feature if you consider it important.
Upd: We’re happy to announce that DMARC support is now available in Plesk Onyx. You can enable DMARC to check incoming mail on a Linux-based server (using any mail server supported by Plesk) or on a Windows-based server (using SmarterMail only). For more information about DMARC, see https://docs.plesk.com/release-notes/onyx/whats-new/#s17
Notice, that the request remained opened and please continue voting for this feature if you consider it important.