Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!pt.cs.cmu.edu!andrew.cmu.edu!cfe+ From: cfe+@andrew.cmu.edu (Craig F. Everhart) Newsgroups: comp.mail.misc Subject: Re: How to use IP addresses in mail Message-ID: Date: 30 Nov 89 18:26:46 GMT References: <8911292029.AA13662@jvncf.csc.org> Organization: Information Technology Center, Carnegie Mellon, Pittsburgh, PA Lines: 12 In-Reply-To: <8911292029.AA13662@jvncf.csc.org> Sure, you just mail to user@[11.22.33.44] . Often you'll be stymied by the remote SMTP server, though, not recognizing such names as local, so you may get rejections from Sendmail saying that it refuses to talk to itself. There's no cure but for the target administrator to fix the sendmail.cf file to recognize explicit dotted-quads, alas, and that notification is hard to do when the whole problem is to get mail working in the first place. Admins, check your config files! Can you accept mail to your IP addresses? Craig Everhart