I would really appreciate the implementation of the Sieve Body Extension, so that we're able to filter messages by the content of the message text.

We have services in place that will sync their users to an existing LDAP server. WE would love it if Connect would act as that service.

Example: an external Spam filter, syncing the users directly from Connect.

HTML footers introduced with version 7.2 stack at the end of replies/forwarded messages. Customers do not like this.

Provide APT source URLs for Debian and Ubuntu

Delegation is great, but it would be really helpful to be able to delegate across domains on the same Kerio server.

While conducting some research for a customer, I found that users of Office 365 hosted Exchange can subscribe to outside calendars through the Outlook Web Access client. The subscribed calendar will then be synced over to Outlook on their Mac or Windows PC. Since Outlook on both Mac and Windows does not support CalDAV or webcal, having this ability in the Kerio Connect Client would be great. Please add this feature. It would at least partly solve another issue that I have submitted feedback for, the ability for Kerio Connect to integrate with third party project management systems.

it would be great if we could set a filter for all doc oder xl* attachments where the name of the file exists the text "invoice"

not only !all! *.doc files !!! - this is currently OK

Search email folders.

I was using the old client version for searching email, as I could restrict to searching only certain folders all at once.
Is this feature now gone in the new client? If so, is it possible to bring back?
(For example I have the archived email set into broken down into years. I can search only in 2014, etc. At the moment, from what I can see, I need to go to each folder individually, and search each time)

By the way, liking the new mail filter at a server level.

The IM server is great, but we do business as multiple domains who all need to chat with each other during the day. It's tedious to have each user in a domain have to add each user in the other domains one by one to be able to chat with them. Kerio Connect should allow you to "restore contact lists" with an option to choose all users on the server rather than just the users within their domain.

I want to sent a message to all domain users to alert them that we install an update on the server and Outlook have to be updated at next logon.
Now i have to make a mailing list by all my Kerio customers and thats a lot of work because there are sometimes new users and old users that you have to delete...

It would be very nice if I can decide if I send "on behalf of" or directly in the name of this sender (without the note "on behalf of" like it is possible in Microsoft Exchange.

Possibility to use SSO to authenticate users.
The standard is SAML but education institutions need rather CAS or Shibboleth.

It will be great if RECALL message function will work on kerio connect. this function is needed by users mostly. and it can be work with exchange server.

After "Mark as Spam" message ends in Deleted folder now. I want it in Junk because after 30 days (our settings) it will be automatically deleted permanently - that's what I want.
I use my Deleted folder as "archive" of DONE things etc., so it is quite important folder for me.

It would be brilliant if analysing the mail is completed before telling the sending server if the mail is accepted or rejected. With this mechanism the responsibility for at the moment lost important! data is transfered back to the sending server.

At the moment in many countries blocking must be disabled due to legal issues, because the responsibility with blocked mails (with kerio connect) is on the receiving side. And due to confidentiality it is not possible to use the "quarantine address".

Allow the Administrator to be able to Import a PST file into an account as well as export a PST File for an account from the Admin Console.

This would reduce migration time considerably as well as allow for a 'Snapshot' like archive of a specific user for compliance or other specific needs.

improve kerio LDAP server to allow a third party LDAP connection to read primary and alias email addresses for users located within the kerio LDAP directory. As well as the ability to pull information and attributes based on those users and directory structure.

The new client is nice!
But we need to work with multiple E-Mail Addesses / Domains at one Client!