Attachments removed while sending (NO server signatures)

• KW

  Klaus W.

  4/30/26, 8:51 AM

  This is a new (copy) of an existing problem and i am posting it new because the admin wanted this to separate from the other topic in the forum!

  We have the extreme troubles with the attachments since update to the 26.0.0 version. We proof the signature in the configuration of mdaemon server but all is empty in the signature options (client and not client). Also running the OC Version 8.0.2 and the actual 26.0.0 or 26.0.1 version of mdeamon is no solution.

  The signature options on mdaemon server were empty. The "cfrules.dat" and other logs are already transfered to Arron (admin here) with 3 samples (also msg-files) withe the problems. There is no solution so far but the wrote me that he thinks that the messages from the sent items do not include the attachments. So he thinks also that the issue is occurring before MDaemon ever gets the messages.

  The problems are getting stronger and another user is reporting that about 50% of the mails are such mails with missing attachments! All Outlook Updates are installed already.

  ALL the mails are checked before sending, but after clicking on send and opening the sent Objects in Outlook, the mail is with no attachment or missing attachment! pdf and jpg attachment are both missing.

  the Users attach the files with drag and drop AND also with the paperclip in the new message and most of the time they are adding one attachment after the other. In MDaemon 8.0.1 (and server version 25...) there were NO problems. Please help.

  the users with the most problems have this outlook versions:

  User1: Outlook 2024 MSO (Version 2604 Build 16.0.19929.20106) 64 Bit
  User2: Outlook 2021 MSO (Version 2604 Build 16.0.19929.20106) 64 Bit

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• A

  Arron Admin Staff

  4/30/26, 10:38 AM

  Can you confirm that if you revert to MDaemon Connector 8.0.1, that you do not have this issue with attachments?

  You can download version 8.0.1 from here, https://files.mdaemon.com/outlookconnector/release/MDaemonConnectorClient64_801.exe

  You'll want to turn off the automatic update option in the client after installing 8.0.1 so that the user is not prompted to upgrade.  The easiest way to do this is from MDaemon, but it only works if you are pushing settings to the clients.  Main | MDaemon Connector | Client Settings | MDaemon Connector Client Settings | Miscellaneous.

  Or you can do it from the MDaemon Connector tool bar. Account | Miscellaneous

  Then menu item to uncheck is "Enable Automatic Updates"

  What language Outlook are you using?

  What language MDaemon Connector are you using?

   

   

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  Arron Caruth

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• A

  Arron Admin Staff

  5/1/26, 2:07 PM

  We were able to reproduce an issue with attachment disappearing when sending a message.  Our development team has fixed the issue and its being tested internally. 

  When your users have the issue, are they composing a new email and adding attachments, saving the Draft, then later opening the draft, attaching more files and then sending it? 

  If your issue is the same as what I found, downgrading to MDaemon Connector 8.0.2 should work around the issue.

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  Arron Caruth

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• A

  Arron Admin Staff

  5/1/26, 4:06 PM

  Installers for MDaemon Connector 8.0.4a, which fixes the issue we found, can be downloaded from the links below:

  https://files.mdaemon.com/outlookconnector/beta/MDaemonConnectorClient32_804a.exe

  https://files.mdaemon.com/outlookconnector/beta/MDaemonConnectorClient64_804a.exe

  Please let us know if this is the same issue that was causing attachments to disappear for your users. 

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  Arron Caruth

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