Hi, One of our list owners receives many of these messages when she sends out a posting. This usually happens when she cuts and pastes message content sent to her from others. She uses AOL. Snips from the error messages are included below. Any help is appreciated. Thanks. Mike =================== =================== --> Error description: Error-for: "user"@ACPS.K12.VA.US Error-Code: 0 Error-Text: Mailer acpsml.ACPS.K12.VA.US said: "550 DATA line too long (Max 1024)" --> Error description: Error-for: "user"@DESC.DLA.MIL Error-Code: 0 Error-Text: Mailer bel2s-mx01-v1.DESC.DLA.MIL said: "554 Invalid data in message