Hi. The code you are looking for is in LSVXMAIL EXEC, and looks like: If Left(subj,9) == 'UNDELIVER' |, /* Crosswell or FAL */ Left(subj,22) = 'UNABLE TO DELIVER MAIL' |, /* Mult*cs */ subj = 'RETURNED NETWORK MAIL' |, /* VAX-type MAILER */ pos('FAILED MAIL',subj)>0 Then /* cern Mailer */ Call RejMail 'mail subject indicates a delivery problem' Note: I added that FAILED MAIL part - that line is not part of the original code.. -turgut