Hello,

I added ca_file to the server section. I do not want clients to present 
certificates, so I did not create the ssl client section you proposed.

Any other suggestion?

I still cannot imagine what could be the cause.

Thanks

Marek




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štvrtok 20. novembra 2025, 16:13, pgnd <[email protected]> napísal/a:

> > after upgrading from Fedora 42 to Fedora 43 the dovecot got upgraded to 
> > version 2.4.
> 
> 
> imo, a sloppy choice on their part, forcing the need to significantly change 
> imap config at the same time as an OS upgrade, and 'breaking imap' for lots 
> of folks.
> 
> > Should the authority certificate be configured somewhere in dovecot?
> 
> 
> start with a thorough read of
> 
> https://doc.dovecot.org/2.4.2/core/config/ssl.html
> 
> if using self-signed certs, you'll end up with something similar to
> 
> 
> ssl = required
> ...
> ssl_server {
> ca_file = /path/to/your_CA.crt.pem
> cert_file = /path/to/your_domain.server.ec.crt.pem
> key_file = /path/to/your_domain.server.ec.key.pem
> ...
> }
> ssl_client {
> ca_file = /path/to/your_CA.crt.pem
> cert_file = /path/to/your_domain.client.ec.crt.pem
> key_file = /path/to/your_domain.client.ec.key.pem
> ...
> }
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