What logging options do you have enabled for Dynamic Screening?  (Security | Dynamic Screening)  You'll probably want, log block list hits, log failed authentication, log connections refu...

Hello, I tested once more with debug option and uploaded the file. When I turn on the proxy, it works fine for about 30 minutes or so. sending and receiving is fine but after a while activesync ...

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...

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...

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...

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...

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...

Hello @Abel,  We have an article at https://knowledge.mdaemon.com/configure-mdaemon-microsoft-365-to-use-the-same-domain-name that may help you out. Essentially, you need to allow Microsoft 3...

@Opus  Merry Christmas to you as well! Arron is out of the office today, but he asked me to let you know that the development team is still working on this, and we do not have a fix as yet.&n...

Dear Arron, Thanks for your great follow up. Fingers crossed :) 

OK, we will take a look. Thanks again for your feedback.

We will look into adding the quota status bar into the Pro theme for future versions. Thank you for your feedback.

In this post I continue with failed DKIM:  source email from x@gmail.com (with attachement) MIME-Version: 1.0 Date: Wed, 17 Dec 2025 19:59:41 +0100 Message-ID: <CAED5QXc7Md4Os+RbFA5kfb9...

Dear Arron,  Thans for your reply.  I checked with a@notgmail.com from @yahoo.com and @icloud.com and it is not hapenning. It's only hapenning on Gmail or Google workspace based source ...

Dear Arron, Thanks for your great explanations. I noticed a wiered problem on forwarding behaviour of Mdaemon (I'm testing v25.5.1) , Mdaemon hosted account acts as forwarder to external address (...

@Arron Thank you, I kind of figured this!  I really appreciate your help with this! I will plod away and find the most consistant way to produce what suits us the best!

Another thing I'm noticing and forgive me for hogging your time is that the html formatting of received emails differes when sent from the webmail and Thunderbird. For example a <h2></h2&g...

There is nothing in MDaemon that knows or cares if a hotspot is being used.   We have used hotspots in the past and will continue to use hotspots anytime there is a need.  I've not ...

I don't know, maybe.To rule out that it's not our network,  please could you try connect to your mdameon webmail via hotspot? And see if you have the same problem or not?