Article View: comp.mail.misc
Article #2388Re: Which headers may Sendmail re-write?
From: Bruce Barnett
Date: Fri, 07 Dec 1990 20:27
Date: Fri, 07 Dec 1990 20:27
29 lines
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1712 bytes
In article <1CE00001.p376wj@tbomb.ice.com> time@tbomb.ice.com (Tim Endres) writes: > Then, along came sendmail! The dark force of the mail universe! :^) > For some reason, which I have never had fully explained, sendmail > found it not only necessary to view headers to determine the means > of transporting the letter, but to modify these headers in order to > assist in the routing and reply routing of the letter through other > sendmails. The reason sendmail does this is because it is necessary. Not all addresses that come into our machine are valid. Not all are fully qualified domain names, or RFC822 addresses. The addresses user@machine or user@machine.UUCP are not valid Internet addresses. If I deliver mail to another internet site, it must be replyable. The above addresses are NOT. If we get such an address, and we send it to another internet site, we MUST convert it into the form: machine!user@crdgw1.ge.com To do anything else would be wrong. -- Bruce G. Barnett barnett@crd.ge.com uunet!crdgw1!barnett
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<BARNETT.90Dec7152753@grymoire.crd.ge.com>Path:
arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uakari.primate.wisc.edu!crdgw1!barnettReferences:
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Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uakari.primate.wisc.edu!crdgw1!barnett From: barnett@grymoire.crd.ge.com (Bruce Barnett) Newsgroups: comp.mail.misc,comp.mail.uucp,comp.mail.sendmail Subject: Re: Which headers may Sendmail re-write? Message-ID: <BARNETT.90Dec7152753@grymoire.crd.ge.com> Date: 7 Dec 90 20:27:53 GMT References: <1CE00001.p376wj@tbomb.ice.com> Sender: news@crdgw1.crd.ge.com Reply-To: barnett@crdgw1.ge.com Followup-To: comp.mail.misc Organization: GE Corp. R & D, Schenectady, NY Lines: 29 In-reply-to: time@tbomb.ice.com's message of 5 Dec 90 11:57:58 GMT