>My mailing list has been flooded with error messages from UUCP machines. Sinc>the SENDER tag has been changed around to use the x!y!z format, LISTSERV >doesn't pick it up, and it doesn't flag a sender of "uucp". Below are two mor>examples. HELP! I'm deleting the offending names, but this is killing my >list. Two people have unsubscribed already because of it. To tell the truth, I don't see why Eric should have to deal with any of this stuff. There is a FREE set of programs for Unix sites that will allow them to send RFC-conformant mail available (smail, elm, and dozens of others), so there is no excuse for sending stuff like the junk in your examples out into netland. I think Eric's code is doing yeoman duty in even trying to deal with that stuff. As far as the command stuff goes, that is still an issue of user education, not of programming. I oppose strongly adding some kind of expert system to LISTSERV just to circumvent users who don't have enough sense to read the documentation or pay attention to what they're doing. Like the saying goes -- you can't write a fool-proof program because fools are so darn ingenious. At some point you just have to say 'enough'. Flames to //SYSOUT DD DUMMY, please.