nanog mailing list archives
Re: sendmail.cf
From: bzs () theworld com
Date: Fri, 22 Feb 2019 14:27:35 -0500
On February 22, 2019 at 10:50 bjorn () mork no (Bjørn Mork) wrote:
bzs () theworld com writes:The predecessor to sendmail was delivermail, 1979, also written by Eric Allman. https://en.wikipedia.org/wiki/DelivermailDamn. Now you made me read RFC801 and wonder why we didn't have an updated version for the IPv6 transition. Or: Where would the Internet have been today without that very explicit "complete switch over" goal?
Not sure what you mean but reasonably late-model sendmail works with IPv6, it's a compile option which is on by default. Or do you mean the NCP->TCP transition? The internet was a lot smaller and one could actually get all the ducks in a line back then. And almost everyone (if not everyone) was connected via IMPs rather than CPE routers and the IMPs were more or less centrally managed or if you managed one you accepted responsibility to work in concert with the others. I don't know the high-water mark for the number of IMPs or more specifically how many existed on the NCP->TCP flag day but I'm pretty sure the theoretical maximum was 256 tho no doubt someone had a way to extend that. But, w/o extensive changes, 256, probably 254, not sure 0 or 255 could be an IMP number, whatever! Largely because your IMP was identified by the last octet of an IP address (I think that's right) so Boston University was 10.4.0.44 which meant port 4 on IMP 44 (which sat at MIT on the 9th floor of 545 tech square.) Of course to speak to the net via your IMP connection your computer(s) also had to switch over to TCP. But, again, these were usually just one or a few big machines per site likely all in the same room or same administration group anyhow. Life was much simpler back then. -- -Barry Shein Software Tool & Die | bzs () TheWorld com | http://www.TheWorld.com Purveyors to the Trade | Voice: +1 617-STD-WRLD | 800-THE-WRLD The World: Since 1989 | A Public Information Utility | *oo*
Current thread:
- Re: A Zero Spam Mail System [Feedback Request], (continued)
- Re: A Zero Spam Mail System [Feedback Request] Töma Gavrichenkov (Feb 17)
- Re: A Zero Spam Mail System [Feedback Request] Jimmy Hess (Feb 18)
- RE: A Zero Spam Mail System [Feedback Request] Matthew Black (Feb 20)
- Re: A Zero Spam Mail System [Feedback Request] Dave Crocker (Feb 20)
- RE: A Zero Spam Mail System [Feedback Request] bzs (Feb 20)
- Re: A Zero Spam Mail System [Feedback Request] Brielle Bruns (Feb 20)
- Re: A Zero Spam Mail System [Feedback Request] Suresh Ramasubramanian (Feb 20)
- Re: sendmail.cf Brielle Bruns (Feb 20)
- Re: sendmail.cf bzs (Feb 21)
- Re: sendmail.cf Bjørn Mork (Feb 22)
- Re: sendmail.cf bzs (Feb 22)
- Re: sendmail.cf Stephen Satchell (Feb 22)
- Re: A Zero Spam Mail System [Feedback Request]...sendmail.cf bzs (Feb 20)
- Re: A Zero Spam Mail System [Feedback Request]...sendmail.cf Steve Feldman (Feb 21)
- Re: A Zero Spam Mail System [Feedback Request]...sendmail.cf bzs (Feb 21)
- Re: A Zero Spam Mail System [Feedback Request]...sendmail.cf John Curran (Feb 21)
- Re: A Zero Spam Mail System [Feedback Request]...sendmail.cf bzs (Feb 21)
- Re: A Zero Spam Mail System [Feedback Request] Carsten Bormann (Feb 20)
- Re: A Zero Spam Mail System [Feedback Request] Brett Watson (Feb 21)