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MDaemon 22.0.2 – Mail Server

MDaemon 22.0.2 – Mail Server
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MDaemon is a reliable and secure mail server that does not require expensive administration or impose high per-user costs. It simplifies messaging and collaboration requirements with an intuitive, user-friendly design. It offers the enterprise-class features that can be managed with minimal training and support.

Messaging Server supports IMAP, SMTP, and POP3 protocols and delivers solid performance from its feature-rich and user-friendly design.

It is a trusted alternative to Microsoft Exchange. The Server provides outstanding groupware features, integration with Microsoft Outlook (using Outlook Connector for MDaemon) and a multi-language webmail client for email access anywhere.

MDaemon works with many popular mobile devices. Regardless of platform, you will have access to your important information wherever you are.

The integrated email message archiving capabilities make it easy to safeguard your email messages to address regulatory requirements and the IT policies of your business.

MDaemon incorporates multiple layers of security techniques such as Relay Controls, IP Shielding, SMTP Authentication. Furthermore, it reverse lookups to minimize possible server exploits. It also uses the advanced email authentication techniques of Vouch By Reference (VBR). Validates and signs messages using DKIM, DK, Sender-ID, and SPF.

This server is combined with its antispam engine, Bayesian Learning, SSL/TSL, backscatter protection, and SecurityPlus for proactive malware prevention. As result, it provides layered protection to safeguard your messaging communications.

MDaemon Features:

  • Easy Setup, Administration, and Maintenance
  • Powerful Mail List Engine
  • Public Folder Ticketing System
  • Active Directory Monitoring
  • WorldClient (Web-Based Email)
  • Remote Administration
  • WorldClient Instant Messenger
  • Microsoft Outlook Integration (Outlook Connector)
  • Powerful Spam Filter
  • Backscatter Protection
  • Hijacked Account Detection
  • Supports Popular Smartphone Mobile Devices
  • ActiveSync for MDaemon
  • Mobile Device Management for IT Policies

MDaemon allows you to encrypt your emails and attachments. On the client-side, WorldClient users can enable basic encryption features when sending emails and attachments within the WorldClient settings menu. On the server-side, Open PGP for MDaemon has been added to give administrators the ability to use encryption, decryption, and basic key management capabilities through OpenPGP support.

Changes in MDaemon 22.0.2 – July 26, 2022:

  • [26222] fix to MDRA – Access Denied errors given accessing Account Editor views
  • [26225] fix to AntiVirus – gibberish line in AV log when Cyren AV is disabled
  • [26206] fix to Spam Filter – changed sa-update.exe to use the next mirror in the list if mirror failed with verification
  • [26224] fix to possible crash in WebAdmin.dll
  • [26230] fix to ActiveSync – Gmail app crashes when opening a particular meeting request
  • [26234] fix to Pro theme – Spell check not working in HTML editor
  • [26235] fix to MDRA – Using the log filter, opening a result that contains umlauts results in an empty window
  • [26250] fix to AntiVirus – reverted Cyren AV back to version 6.5.2r2
  • [26249] fix to Pro theme – folder list cached from previous login
  • [26256] fix to MDRA – When double clicking a session at Main | Active Sessions an iframe with an error appears
  • [26259] fix to MDRA – Unable to add an account to the list of ActiveSync Accounts at ActiveSync | Account Management
  • [26258] fix to MDRA – Unable to revoke all accounts at ActiveSync | Account Management
  • [26261] fix to MDRA – Unable to save gateway forwarding changes
  • [26262] fix to AntiVirus – possible fix to ClamAV “init-error” when scanning messages
  • [26273] fix to AntiVirus – Cyren threat lookup disabled by default in UI when it should not be

Changes in MDaemon 22.0.1 – July 05, 2022:


  • [24735] MDRA – Added ability to resize and move the dialog popups.
  • [26010] MDRA – Added a Delete All button for Queues, and added the ability to use CTRL + A to select all items in a Queue.
  • [24811] MDRA – Added a table of each user’s thirty most recent Webmail sign-ins at Main | Account Manager | Edit account.
  • [26042] AntiVirus – Added an option to enable/disable Cyren’s Threat Lookup at AntiVirus | Virus scanning | Use the Cyren… | Configure
  • [25817] MDRA – Added a new mobile-friendly list control to replace the multi-select list
  • [24782] A client signature can now be set per group. The client signature will be pushed to members that use Webmail or MDaemon Connector. A group client signature overrides a domain client signature, which overrides the default client signature. In the MDaemon GUI go to Accounts | Groups & Templates to edit a group and set its client signature. Clear the text in the editor to remove a client signature.
  • [26069] Pro theme – Switched from Jodit to TinyMCE HTML editor.
  • [25958] Pro theme – Added “Message Window Closes on Delete” feature.
  • [25957] Pro theme – The message window will close when deleting the last message in a folder.
  • [26158] Spam Filter – Added an option to log Spam Filter updates at Security | Spam Filter | Updates.
  • [26193] AntiVirus – Updated Cyren AV to version to 6.5.4r21.


  • [26017] fix to EDNS0 is not being used for outbound SMTP and POP connections
  • [26029] fix to MDRA – Unable to save changes after changing content filter rule condition
  • [21966] fix to Content Filter – restricted attachments not being applied to nested RAR files
  • [26054] fix to AntiVirus – possible lock up during virus scanning
  • [26048] fix to Content Filter – restricted attachments not being applied to nested 7zip files
  • [25993] fix to Webmail – Published Calendar – Event that spans two days between two months causes empty list view
  • [25750] fix to possible crash in WorldClient.dll
  • [26103] fix to Pro theme – Message List – When there is no message preview, double-clicking a message opens three instances
  • [25950] fix to Webmail – Remember Me often lost when upgrading the MDaemon server
  • [26140] fix to AntiVirus – wrong version of ClamAV included
  • [26143] fix to AntiVirus – possible crash if debug logging is enabled for ClamAV
  • [23762] fix to XMPP Server – possible crash during shutdown
  • [26157] fix to MDRA – Reflected Cross Site Scripting (XSS) vulnerabilities reported by Pankaj Kumar Thakur from Green Tick Nepal Pvt. Ltd.
  • [26156] fix to MDRA – Compression Exempt list entries are written to the CFCompress.dat file on a single line
  • [26169] fix to MDRA – Minger – Shared Secret password is limited to 10 characters
  • [26174] fix to Pro theme – Cannot send a message with only BCC recipients
  • [26175] fix to Pro theme – Inline images are not working in the Compose view
  • [26177] fix to Pro theme – Password Recovery page does not work when 2FA is enabled
  • [26159] fix to Pro theme – IIS – When message view is set to 500, messages remain when deleting a full page
  • [24677] fix to Content Filter – header line not MIME-encoded back after being modified
  • [26144] fix to ActiveSync – all day events may span two days
  • [26127] fix to MDIM – MDMailCheck – If a user logs out of Webmail and tries to use MDMailCheck to open Webmail the login page will be shown
  • [26197] fix to Webmail – Logging in from MDIM goes to an error page if 2FA is enabled

Changes in MDaemon 21.5.2 – February 8, 2022:


  • [25707] MDaemon Connector has been updated to version 7.0.6.
  • [25471] XMLAPI – Improved UpdateUser group membership operations.
  • [25709] LetsEncrypt – Changed the Log function to use add-content instead of out-file. Add-content uses the default system code page which should enable the log file to be viewed in MDRA. No change will be made to the encoding of the log file until a new log file is created.


  • [25683] fix to ActiveSync – performance issues
  • [25664] fix to ActiveSync – Unable to enable ActiveSync for the final licensed user
  • [25681] fix to XMLAPI – Autoresponder schedule being set wrong
  • [25667] fix to Pro theme – Cannot add members to a distribution list
  • [25678] fix to MDaemon writes auth failures to Windows Event Log even when option is turned off
  • [25679] fix to MDaemon’s Auth Failures log may have incorrect ACCOUNT values
  • [25658] fix to WorldClient theme – Option to recur every X weeks missing in the event editor
  • [25676] fix to MDRA – Unable to add an alias using $LOCALDOMAIN$
  • [25646] fix to MDRA – When editing group membership it’s possible to accidentally revoke your own global admin status
  • [25690] fix to MDRA – Using Apply when creating a new Template or new Group causes an error when making additional changes
  • [25695] fix to MDRA – Problems editing rules when there are more than 1000 rules
  • [25694] fix to Pro theme – Pasting links from Youtube into compose view and sending message results in the links missing in the received message
  • [25701] fix to possible message corruption when MDaemon releases or requeues a message
  • [25705] fix to Pro theme – Attendees are not notified when meetings are changed
  • [25714] fix to Webmail – Previously removed categories on messages reappear with new sessions
  • [25698] fix to domain signature with inline image may not be applied properly to a message with an inline image
  • [25718] fix to IMAP server does not return BAD response to a command line that’s too long
  • [25750] fix to possible crash in WorldClient.dll
  • [25767] fix to ActiveSync – Unable to sync PIM folders that do not have .MRK files in them if folder name contains extended characters

Changes in MDaemon 21.0.3 – August 3, 2021:

  • [24876] fix to ActiveSync – possible public contacts corruption when PIM mrk file validation is enabled
  • [24877] fix to ActiveSync GUI – Help button does not work on Client Settings dialog
  • [24899] fix to untitled attachments on recurring events with changed occurrences that were saved by MDaemon Connector
  • [24905] fix to changed occurrences of a recurring event edited in both Webmail and MDaemon Connector can get out of sync
  • [25096] fix to delay during MDaemon startup if there are many gateways
  • [24971] fix to MDaemon performance issue when there are many domains
  • [25087] fix to Webmail – Spell Check may use 100% CPU for German and Finnish
  • [25085] fix to Webmail – XSS vulnerabilities
  • [24918] fix to Mobile theme – Unicode (e.g. Japanese) Public and Shared parent folder names are not displayed correctly
  • [25115] fix to possible crash in MDASMgmt.dll
  • [25029] fix to ActiveSync – password expiration warnings may be sent to client repeatedly
  • [25150] fix to XMLAPI – CreateUser does not work properly
  • [25152] fix to XMLAPI – AutoResponder times not adjusted to/from UTC
  • [25178] fix to possible crash in MdMbSrch.dll
  • [25175] fix to possible crash in MDaemon.exe

Homepage –

MDaemon Email Server – Minimum System Requirements:

MDaemon is available as a 32 or 64 bit application.

  • Microsoft Windows 11 | Server 2022|2019|10|2016|8|2012|7|2008 R2
  • CPU 800 MHz processor or higher (dual core CPU 2.4 GHz or higher recommended)
  • 512 MB RAM (1 GB RAM recommended)
  • Typical Hard disk space required: 200MB of free space, additional space for any mail to be stored
  • TCP/IP network protocol installed
  • Internet or Intranet communication capabilities

Size: 310 MB

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