My zimbra version:
Release 6.0.2_GA_1912.RHEL5_20091020185714 CentOS5 FOSS edition.
My server trying to sending email with using mail-daemon as sender to some one [not local user], and this is queue message:
possible my server has been spoofed? how to fixed?Code:Sender: mailer-daemon From host: localhost.localdomain From domain: From IP: 127.0.0.1 Recepients: firstname.lastname@example.org To domain: Content filter: