When I send to my list, certain people do not get the e-mails (no bounceback either). The message headers have the X-Authentication-Warning header included and I think this may be the culprit. Can anyone confirm this? I know it's an issue with Sendmail but I just want to know if correcting (removing) that header will cure the problem. __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover