Hello, I don't usually post to this list - My question is there anyway to resolve this issue we are having - we keep getting the following error in our maillog "dsn=5.0.0, stat=Service unavailable" We have had increase of email not being delivered to users. Below is an example of a user on a list not getting the message (this is from the sendmail log). Jun 24 13:24:30 listserv sendmail[8998]: s5OBOs88008998: from=<owner-riderallfacultystaff-l*edrozd**RIDER*[log in to unmask]>, size=53078, class=-30, nrcpts=1, msgid=<[log in to unmask]>, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] Jun 24 13:24:30 listserv sendmail[25826]: s5OBOs88008998: to=<[log in to unmask]>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=227078, relay=nemesis3.rider.edu. [192.107.45.72], dsn=5.0.0, stat=Service unavailable (END) List configuration... All wcc and law faculty/staff emails Confidential= Yes Subscription= Open,Confirm .HH ON Validate= Yes,Confirm Send= Editor,Hold,Confirm Default-Options= NOACK,REPRO [log in to unmask] Reply-to= Sender,Ignore Errors-To= Owner Auto-Delete= Yes,Full-Auto,Probe(10) Notebook= Yes,/var/www/html/archives,Monthly,Private Owner= [log in to unmask], [log in to unmask], [log in to unmask] Editor= [log in to unmask], [log in to unmask], [log in to unmask] .HH OFF ############################ To unsubscribe from the LSTSRV-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1