basti
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Hello,
That is the way that Thunderbird is using to resolve hostnames on
windows (default settings, no DNS over https)
Is it use the windows libery or a own one?
The Problem is that I have 2 DNS servers configured in windows,
If the first in the list is down, for some reason Thunderbird can't find
the mailserver anymore.
Ping mailserver work as expected.
best regards