http://forum.odin.com/threads/dovecot-mdbox-and-altmove-support-in-plesk.334620/

It would be really handy if we could, via Plesk panel or some cli utility, o switch from Maildir to mdbox as mailbox storage format and enable alternate storage for old emails. This way we can optimize the disk usage by using the fast storage media for recent emails, while the old stuff can go on a slower, cheaper media. Will also help a lot in growing our mail customer base without forking out ridiculous amounts of money for expensive fast disks arrays to keep up with the growth rate.

For better SPAM Protection it would be nice to add an Option to let the Mailserver check, whether senders Domain is existing or even not.

I got Mails from "Domain.xyz" wich is of Course no valid TLD.
"Reply-To" is of Course an valid Mail adress.

On request, my Data-Center told me they could activate that Option, but while Plesk is Controlling that config, on next Plesk update the Change gets lost.

So: Could you add in Plesk that Feature as an Option?

Required External/Remote mail server like mailenable, smartermail with different server.

It seems difficult to manually install a mobile skin on Roundcube, and if it should succeed the plesk would overwrite the config made on updates. The default skin provided with plesk should support mobile devices, as this is an important feature nowadays.

Into domains blaklist frequentelly we have subdomains sendind emails,
so block just a domain not solve the situation.

i suggest a check option to block all subdomains as well,

please see the post forum for more info.
http://forum.odin.com/threads/is-black-list-server-wide-mail-settings-working.333066/#post-780648

All incoming/outgoing mail for a certain domain is copied automatically to a different inbox within that domain.

http://forum.sp.parallels.com/threads/email-archive.92570/

I would like to be able to create own e-mail addresses for Domain Aliases. Let's say i have example.com as domain and add example.net as alias, now i would like to create e-mail adresses for example.net (alias domain) only which are NOT available on example.com and vice versa.

Review an email's delivery route like Track delivery of Cpanel

The ability to empty a users emailbox without deleting the account and recreating would be great.

Add Plesk Panel UI for configure outgoing Mail Server.

""In Plesk for Linux with the Postfix mail server, you can change the IP address used for sending mail. Also, if your server sends mail from domain IP addresses, you can specify which name will be used as a host name in SMTP greetings.""

So a UI where the Admin of Plesk Server can, change the settings for outgoing Mails.
Send from domain IP addresses and use domain names in SMTP settings.

Add Sogo as a webmail alternative in Plesk.

Sogo share your calendars, address books and mails in your community with a completely free and open source solution

Sogo is a great webmail solution and provides native Microsoft ActiveSync support. Mobile devices such as Apple iPhone, Android, Windows Phone, and BlackBerry 10 can fully synchronize emails, contacts, events and tasks with SOGo.

It would be nice to have an external SMTP (smarthost) ability for a per-domain basis (most mail services have this)

We use this for external scanning, data leak prevention and more.

Can this be be done?

At the moment by default any webmail interface is under domain webmail.<domain>

Some people would like to use custom one. For me personally it's important to have this as server-wide setting (I have basic workaround for this - custom domainWebmail.php), but it isn't perfect (many links to webmail service missing, e.t.c.).

And that's why we have plesk - user friendly interface.

I would love to use exchange server 2013 while using plesk panel. Exchange server is by far the most superior email server for windows and would be a great addition to plesk panel.

I believe that there is also an open API or an easy way to send commands which would make it a lot easier to integrate with.

I suggest you add a feature in Settings with which we can enable SPAM / VIRUS protection for newly created mailboxes by default.

Discussion here:

http://forum.parallels.com/showthread.php?287233-Anti-virus-and-anti-spam-enabled-by-default-on-mailbox-creation&p=715980#post715980

If the spam score is above the first threshhold, flag the message as spam or deliver it to Spam folder;

Reject it immediately (preferably during the SMTP session) or just discard if the score is above the second, higher threshold.

This way the customer would have more control over the anti-spam system, allowing much less true spam mail to enter the mailbox.

It would be much better if server-wide and per-mailbox options were available in Plesk to add SpamAssassin rules.

SpamAssassin can be configured by the command line, but this is difficult for many of us.

Actually it's possible to show deferred messages headers in : Tools and settings > mail server settings > mail queue

It would be very useful if it's possible to show the reason why the message is deffered or stuck in the queue (/var/spool/postfix/defer).