nanog mailing list archives
RE: IETF SMTP Working Group Proposal at smtpng.org
From: "Robert Blayzor" <rblayzor () inoc net>
Date: Wed, 21 Aug 2002 22:52:35 -0400
Then perhaps you'd like to tell me how we have tens of thousands of users quite happily doing it? True, I wouldn't run Hotmail/AOL/EarthLink/etc's MXes off dynamic IPs, but for a home/small biz mail server... Oh, and one last thing, when you specify an MX (statically, as you say), you don't put in the IP but rather a name created with A record, so what prevents that A record from being a low-TTL dynamic DNS A record?
Running a mail server off a dynamically assigned dialup *CAN* work, but it really isn't the thing to do even if you put in a low TTL on the A record. Sure it works. But what about all the messages that will requeue on remote mail servers and depending on the remote queueing strategy of the remote mail server, it can take hours before mail could be re-attempted for delivery. A dynamically assigned MX box isn't really the best thing to do. If you want to do that then you should at least have a lower preference backup MX that is on 24/7 that will accept mail on your behalf, and when your server dynamic SMTP server comes online it can simply do an ETRN to requeue the mail on the backup MX. Having one MX on a dynamic DNS mail server is just rude to remote mail servers that try to deliver mail. Why should my servers consume more resources to benefit your customers? -- Robert Blayzor, BOFH INOC, LLC rblayzor () inoc net Exclusive: We're the only ones who have the documentation.
Current thread:
- RE: IETF SMTP Working Group Proposal at smtpng.org, (continued)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Gary E. Miller (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Gary E. Miller (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Brad Knowles (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Gary E. Miller (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Dave Israel (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Vivien M. (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Vivien M. (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 22)
- RE: IETF SMTP Working Group Proposal at smtpng.org Vivien M. (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org JC Dill (Aug 22)
- RE: IETF SMTP Working Group Proposal at smtpng.org Vivien M. (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Gary E. Miller (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)
- Re: IETF SMTP Working Group Proposal at smtpng.org Petri Helenius (Aug 21)
- Re: IETF SMTP Working Group Proposal at smtpng.org Dave Israel (Aug 21)
- RE: IETF SMTP Working Group Proposal at smtpng.org Robert Blayzor (Aug 21)