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.
— rkRobert Brooks commented
Windows is fine for admins and users who don't mind paying crazy amounts of money for an OS and CALs, but for the vast majority of your customer base (who I suspect uses Linux implementations), a Linux solution sure would be welcome. Are you even working on this? Or has it become a "we provide it for Windows based servers, so change your implementation to meet what we are willing to provide" solution?Robert Brooks commented
I agree. Without this feature it is impossible to set up a secure connection from notification services on other servers (example - notify when a new cloud user subscribes, or event monitoring for a VOIP service) without having to send credentials in plain text (which is REALLLLLLLY not advisable in today's internet environment). As it is now, I have to set up a separate server to handle these processes which decreases the value of the Plesk platform for me and I would assume others as well. Please add this feature ASAP. Plesk is a great offering but without security it's less appealing. Adding the Let's encrypt tool was a major step toward answering security concerns (and thank you for that), and SNI support is a very logical and marketable extension of that.Robert Brooks supported this idea ·