Good day. Could You please specify in the log piece below
abc postfix/smtpd[28521]: lost connection after DATA (0 bytes) from unknown[1.1.1.1] abc postfix/smtpd[28521]: disconnect from unknown[1.1.1.1] abc postfix/smtpd[28637]: connect from unknown[2.2.2.2] abc postfix/smtpd[28637]: 93B439813C: client=unknown[2.2.2.2] did 1.1.1.1 and 2.2.2.2 tried to send email TO a user at abc email service or they tried to send their mail THROUGH the abc email service? Thank You for Your time.
