The MDaemon 19.x version deprecated and removed SyncML which would causes (GO!)NotifyLink Enterprise Server to fail for synchronizing Mdaemon user's PIM.  However, Alt-N (Mdaemon) support has provided a workaround to allow access to SyncML for the MDaemon 19 version.  Please note, this a temporary workaround and may not be available in future versions of MDaemon.

1.  Please create a copy of the WorldClient.ini (C:\MDaemon\WorldClient) and rename that copy WorldClient.ini file to WorldClient.old.ini

2.  Open the WorldClient.ini file and navigate to the [SyncML] area/section.

Please change the Enable=No to Enable=Yes

Now add these lines:
LogLevel=1
Timeout=5

Once done the [SyncML] area/section should look like this:

[SyncML]
Enable=Yes
LogLevel=1
Timeout=5

3.  Next, navigate to the [WebServer] area/section.

Verify that this line is listed

CgiBase1=/WorldClient.dll

Add these lines:

CgiBase2=/MDSyncML.dll
CgiFile2=C:\MDaemon\WorldClient\HTML\MDSyncML.dll

4.  Now save the WorldClient.ini file.

5.  Once that is complete, save the changes and then restart MDaemon (https://www.altn.com/Support/KnowledgeBase/KnowledgeBaseResults/?Number=KBA-02123 )