You should be able to get the details in the SMTP log file since it most likely was bounced by the Astaro. If not, the mail server log should show you.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005
You should be able to get the details in the SMTP log file since it most likely was bounced by the Astaro. If not, the mail server log should show you.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005