Thanks for the log sessions, they are showing the client trying to sync an item that is malformed and that can't be found on the server.  These are warnings only and should not cause the clien...

If its not already enabled, please enable debug logging for ActiveSync by logging into Remote Administration and going to ActiveSync / Diagnostics, set the Log Level to Debug and click Save.  ...

This is from activesync log. 

Are we forced to purchase a new license? No, you are not forced to buy a new license.  You can go to https://mdaemon.com/products/mdaemon-email-server, enter your existing key and renew i...

Hello, We tested more throughly after hours and this is what we're experiencing. Cloud proxy turned on, Using Web mail instead of IIS or any other server, IP persistence is checked off and Use co...

Hello everyone, after many years we are considering upgrading our MDaemon system, which has remained at v14.5.7, for which the license has not been renewed for several years. Our MDaemon server m...

Great. Thanks, Arron! Dave  

Yes TLS is being used.  The certificate that the receiving server is using is not signed by a recognized Certificate Authority, so it is not trusted by your server.  Most likely the certi...

We're doing business with a firm in the Czech Republic. When sending an email, and the negotiation for TLS happens, I see this in the logs: Tue 2026-01-06 10:59:54.017: 05: Waiting for protocol to...

When using the Active Directory functionality for mailing lists, the AD users are not added to the list.  ActiveDirectory is queried for members each time a message is sent to the list.  ...

It comes at a cost, but a DDOS protection service is usually the most effective.  Especially if the attacks get really large. Basically hide your mail server, and the rest of your network, as...

In Remote Administration you can see the number of currently active webmail sessions.  Main | Status | Sessions In the MDaemon GUI, you can see a list of users currently logged into webamil b...

I there, i am trying to fill the Mailing List with an active directory distribution group. When im filling out the parameter into the gui and i do a test, it does resolve the mail adresses of the ...

Hello, Wanted to get suggestions on service or best practice for preventing DDOS attacks on mail server. We have been getting DDOS attacks on our various end points and we succesfullys mitigated ...

Hi dear mdaemon support. sometimes I want to know how many people and who logins to server via webmail. Could you please help me in this regards?   Best Regards, Jalal

Hello Miroslaw, The Up and Down buttons help you with managing mailing list users' permissions when you use Groups containing local users. Mailing lists process permissions in the order in which t...

Thank you!

@Allen  This is from the MDaemon Help file topic on ActiveSync: ActiveSync is a web-service extension that only works on ports 80 (for http) and 443 (for https). This is an ActiveSync ...

Hi! I’m just wondering what the UP and DOWN buttons are used for on the mailing list members list — or, put another way, what is the significance of a member’s position on the li...

Thank you for your reply. We are currently testing to see what exactly is happening when Cloudflare proxy is turned on.  What seems to be the problem is ActiveSync. Not getting any emails or...