Is easy to use.

ActiveSync is a necessary tool for most businesses today as it allows them to have everything in one place and stream it automatically to every device they use. Users with mobile phones and tablets can easily sync their contacts, calendars, notes and emails via activesync and users with outlook and other mail clients can sync contacts, mail and perhaps notes.

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.

Now you have two opportunities to set the spamfilter - server-wide or individual. It would be very handy if the admin or the customer could set the spamfilter for the whole subscription or/and for the whole domain.

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.

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?

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.

Hi,
plz add mailman 3 as mailinglist software.

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 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

Most of RBLS are checking the SMTP Banner and currently only the first domain name is being used. To reduce scamming or to prevent being blacklisted you should apply myhostname with the according domain name.

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

It would be nice to provide mail SSL/TLS support with SNI for more domains from single IP

Many mail servers have this feature. Please include in plesk possibility to add disclaimer to mail footer on specified domain.

Many Clients ask me how to add Disclaimer to mail footer automatically not from webmail.

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!

Allow management of greylist filters and configuration from the Plesk control panel instead of only from command line as is currently the case.

enable email piping like in cPanel email forwarders to pipe to a script (osticket)

There is relatively new anti-spam tool - Rspamd. I think, it worth to be integrated with Plesk as an alternative to SpamAssassin. It shows better performance as the author says here http://rspamd.com/misc/2016/03/03/rspamd-performance.html

I want to be able to set the recipient_delimiter. But, currently, any customizations to main.cf get overwritten.