On Sun, Jan 18, 2026 at 01:59:35PM +0200, Uolys wrote: > >Failed to Process TLS Socket - certificate failed. > >Unable to get local issuer certificate. > >smtp disconnected reason="io-error: handshake failed > >- error:0A000418:SSL routines::tlsv1 alert unknown ca". > > Why is CA unknown when it is valid and declared as CA cert in smtpd.conf?
Is this a self-signed certificate or a certificate issued by a global CA?
