Is it possible that you're dealing with Comcast customers who were previously served by AT&T Broadband before that service was bought out by Comcast? Those customers would have had mail.attbi.com as their SMTP server prior to the buyout. Comcast continued to operate a server at that address for quite some time after the buyout, while at the same time telling customers that they should switch their settings to smtp.comcast.net. We heard from one such user last week that he couldn't send mail all of a sudden. When we found out he hadn't changed from the attbi.com server yet, we concluded that Comcast must have finally shut down the old address. At 12:17 PM 9/29/2003, Wendy Tate wrote: >Hello all; > >I live in the boonies, where we don't have nice stuff like cable modems. >Three of our faculty members have recently begun to complain that they >can't send mail through their Comcast cable connections anymore. > --Chris ============================================== Chris Wolf Computer Service Manager Agricultural Economics [log in to unmask] Michigan State University 517 353-5017