This is a valid request, so we’ll look into it. There is no ETA at the moment, but we would really appreciate you voting for this request so that we can accurately assess its popularity relative to other features. Thanks in advance!
Piping e-mail to scripts is something from the past. E-mail is getting more and more "virtualized". In the past e-mail boxes were actually users on the system, which is no longer the case. As of now all mailboxes are virtual and all belong to 1 UID. As piping data means starting a script as that UID, it might have serious security implications.
If a user would be able to create his own pipe script he could start a shell as the mail server, and read mail from all users. Bad idea.
There are other ways to fix this, eg, using FAM or maybe IMAP IDLE.
31 votesTozz commented
No, not override. Use as an addition. With SNI you can host multiple SSL certificates on 1 IP-address, but it doesn't neccessarly show a different website.
So basicly the Plesk interface would be reachable using multiple SSL certificates using SNI. For browsers not supporting SNI (eg. WinXP with MSIE9) you could fallback to the server certificate.
Thank you for your input, we will consider this functionality in upcoming Plesk releases.