I've received a question that had been forwarded thrice, and to so many people, that I've decided to reply to the list instead of keying in hundreds of [log in to unmask] The problem was that someone sent mail to the SAS-L list and got an error mailfile from some VAX node complaining about some !E-MAIL%whahahaha%nianiania error parsing '::VAXD!SDEZRG!%' (it probably means 'Disk full' or 'Coke has been poured in the CPU' but VAXes always have a funny way of conveying messages to human (?) people). Anyway the problem was not the VAX error itself, but the fact that it had been forwarded to the 'From:' address instead of the 'Sender:' field. From my past experience with the BITNIC lists, back in the days when they were running BITNIC's code, you were almost certain to receive about three such notices when sending mail to XMAILER or MAIL-L or LINKFAIL. Notably, there was some user called CHAMPAIGN at some node I have forgotten which always caused a rejection notice to be bounced to me. It would seem that *some* VAX mail packages have their own understanding of RFC822 and bounce mail back to the 'From:' address (maybe only when the moon is in its third phase). Anyway I don't think it's a LISTSERV problem -- if the mailfile received by the VAX site had the proper person in the 'From:' and 'Sender:' fields, it's the mailer's fault. Eric