Forum Discussion

MariuszMar's avatar
MariuszMar
Copper Contributor
Oct 13, 2022

KB5018410 problem with Outlook

After installing the hotfix, when trying to send smtp mail it has error 0X800Ccc1A Your server does not support encryption.
At this time, all workarounds are down. Uninstalling the patch restores the ability to send mail. Please help.

8 Replies

  • igrissysadm's avatar
    igrissysadm
    Copper Contributor
    Same issue. Any thoughts or workarounds except uninstalling that update?
    • hodza's avatar
      hodza
      Copper Contributor

      For Win10

      https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020436-os-build-20348-1131-out-of-band-18baa25a-5fc0-4118-9b89-ddbe9819e578 

      Fixed: https://support.microsoft.com/help/5020435

       

      For Win11

      https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020387-os-build-22000-1100-out-of-band-5e723873-2769-4e3d-8882-5cb044455a92


      For Win2019

      https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020438-os-build-17763-3534-out-of-band-cd499c1a-6d60-49a1-9a40-fad42c1d393a

       

      For Win2022

      https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020436-os-build-20348-1131-out-of-band-18baa25a-5fc0-4118-9b89-ddbe9819e578

       

  • ManuvSalicetti's avatar
    ManuvSalicetti
    Copper Contributor
    Same issue here. When trying to send e-mails it returns 0X800Ccc1A error. Also can't configure Exchange Active Sync Account in my outlook desktop client since the update KB5018410 in windows 10.
      • hodza's avatar
        hodza
        Copper Contributor

        https://hodza.net/2022/10/16/kb5018410-outlook-error-0x800ccc1a-postfix-ssl_accepterror/