It would be useful to be able to configure auto replies so that they start automatically on a specific date.

If I don't want to forget to set it before leaving.. or i'm sure there's many reasons!

Roundcube for Windows

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

Now, if you sent an email to 100 recipients, it counts only as 1 sent in Plesk Outgoing Limit. It should count as 100 sends.

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/

We have many support requests from our customers (non technical) to search logs and find if a message was sucessfull delivered and consume much from our support.

If the customer could search logs from a specific sender ou destination, filtering by date, will be great for us.

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.

I would like to use an E-Mail address as an outgoing E-Mail address with no postbox behind it. All E-Mails should be forwarded to another E-Mail address.
Currently you can set up forwarding but if you check "Use postbox" than the mails will be kept on the server although they have been forwarded. If you uncheck it, it is impossible to send emails from that address.

So please add at least an option to delete mails after forwarding them.

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?