Mark London wrote: > Once specific piece of mail is causing the following error message, > preventing it from being delivered. > Apr 21 12:28:47 psfcsv1 mimedefang[28925]: l3LGRYZX001251: > smfi_chgheader returned MI_FAILURE What's the output of: grep l3LGRYZX001251 /var/log/maillog Regards, David.