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I tried that (I've done this many times because of local development of APIs), but Thunderbird doesn't seem to use this. Or: it is another problem, but Thunderb

I tried that (I've done this many times because of local development of APIs), but Thunderbird doesn't seem to use this. Or: it is another problem, but Thunderbird doesn't give any helpful message.

throwanem 6y ago
Ah, it looks like Tbird uses its own cert store, maybe. https://manuals.gfi.com/en/kerio/connect/content/server-configuration/ssl-certificates/self-signed-certificates-in-mozilla-thunderbird-950.html https://manuals.gfi.com/en/kerio/connect/content/server-conf... describes a pretty unique process for manually applying a trust exception to an arbitrary server cert - maybe worth a try if you didn't know about it, as I also did not until five minutes ago despite having used Thunderbird for what must now be a couple of decades.