Hi Quinn.

Just think I've seen this looong ago... may be I'm wrong

Check the ports for smtp / pop in outlook - it may relate to the portnumbers - if it needs to be encrypted try using port smtp 465 / pop 995.
( it requires the ports are in use by the QMT server ofcourse)

Hope this may help

/Finn


Den 12-10-2022 kl. 22:16 skrev Quinn Comendant:
Today we received several complaints from Outlook users who are unable to connect to QMT servers. They get this error:

    Task "[email protected] <mailto:[email protected]> - Sending: reported
    error (Ox800CCC1A) :
    'Your server does not support the connection encryption type you have
    specified. Try changing the encryption method. Contact your mail server
    administrator or internet service provider (ISP) for additional
    assistance.'

The error began after installing Windows 10 servicing stack update - 19042.1940, 19043.1940, and 19044.1940 <https://support.microsoft.com/en-us/topic/october-11-2022-kb5018410-os-builds-19042-2130-19043-2130-and-19044-2130-6390f057-28ca-43d3-92ce-f4b79a8378fd>, and the problem was fixed by uninstalling the update.

Has anyone else experienced this, or know what the problem could be? I hope there is a config change I can make on QMT servers so that users will not need to uninstall the update.

Quinn


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