Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!VENERA.ISI.EDU!postel From: postel@VENERA.ISI.EDU Newsgroups: comp.protocols.tcp-ip Subject: Is underscore legal in the local-part of an address? Message-ID: <9007231908.AA13701@bel.isi.edu> Date: 23 Jul 90 19:08:48 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 32 Hi. You are right, he is wrong. --jon. ----- Begin Included Message ----- Date: Mon, 23 Jul 90 10:38 CDT From: Michael Califf Subject: Is underscore legal in the local-part of an address? To: TCP-IP@NIC.DDN.MIL Sorry about posting here, feel free to aim me at a better list... At least one of the INTERBIT (Internet-to-BITNET) gateways is rejecting addresses which contain an underscore. The postmaster at the gateway says that this is because his software correctly implements RFC821 which restricts addresses to letters, numbers, and hyphens. I have checked the RFC and it seems to be a little less restrictive than that. Have I missed something? Thanks for any help/pointers, Mike Califf (POSTMAST[ER]) Communications Software Coord Internet: califfm@baylor.edu Baylor University C.C.I.S. Bitnet: CALIFFM@BAYLOR ----- End Included Message -----