KB5018410 problem with Outlook

Question

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.

manuvsalicetti · Answer

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.

overlaps · Answer

ManuvSalicetti&nbsp;Same issue here, any workaround except uninstalling hotfix ?

hodza · Answer

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

igrissysadm · Answer

Same issue. Any thoughts or workarounds except uninstalling that update?

hodza · Answer

For Win10https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020436-os-build-20348-1131-out-of-band-18baa25a-5fc0-4118-9b89-ddbe9819e578&nbsp;Fixed: https://support.microsoft.com/help/5020435&nbsp;For Win11https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020387-os-build-22000-1100-out-of-band-5e723873-2769-4e3d-8882-5cb044455a92For Win2019https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020438-os-build-17763-3534-out-of-band-cd499c1a-6d60-49a1-9a40-fad42c1d393a&nbsp;For Win2022https://support.microsoft.com/cs-cz/topic/october-17-2022-kb5020436-os-build-20348-1131-out-of-band-18baa25a-5fc0-4118-9b89-ddbe9819e578&nbsp;

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KB5018410 problem with Outlook

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