Lets Encrypt Certificate for Mailserver and Webmail.
As descriebed earlier
Fully completed since SSL It! 1.2.0: https://ext.plesk.com/packages/3c4117f6-c05c-4d3b-9173-60f10096a9c4-sslit
Note that SNI for Mail is available since Plesk Obsidian, and only for MailEnable and Postfix+Dovecot (at that old OSes aren’t supported).
Webmail securing is available since Plesk Onyx.
Rob Nester commented
to add to this:
I currently have the following implemented on a manually managed server with Let's Encrypt and this this implementation would benefit others:
I have a single Let's Encrypt cert which is used for postfix. For each domain that I host, I add the mail server as a SAN to this certificate. In this way, i can allow all domains to connect to their respective mail.<domain>.<tld> and get no issues with mismatches.
I think that this idea is easily extendable to add the "standard" mail subdomains (pop, pop3, imap, imap4, smtp) in a similar fashion.
Hopefully this will be similar to the final implementation as I would guess that there are a number of folks who use Plesk to host multiple domains who have customers who don't really enjoy the use of a mail server which doesn't match their domain.
Since Startcom/StartSSL is going down the bad way, we need a replacement asap. Let's Encrypt solves this generally, but it's not yet possible to manage multi-subdomain certs in plesk.
Please make it possible to add multiple subdomains to create the mailserver certificate.
Either let the admin choose on their own or define at least the follwoing default subdomains to be included into the host certificate.
Not working in odin, to many subscriptions for strato provider
Also, we would find it good if this function can be implemented.
It is a very important function.
When it's done??
Because it is an important point