On Sun, Dec 14, 2025, Xavier Beaudouin via mailop wrote: > In his side he gots:
> Diagnostic-Code: X-Postfix; Server certificate not verified Does that mean his side tries to verify your (server) certificate? If so, it seems like a misconfiguration - he needs to either not require verification or make the proper root CA available (for your server cert) to his MTA. _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
