nanog mailing list archives
Re: Mailserver requirements
From: Niels Bakker <niels=nanog () bakker net>
Date: Tue, 6 Apr 2004 01:48:59 +0200
* rwelty () averillpark net (Richard Welty) [Mon 05 Apr 2004, 23:50 CEST]:
On Mon, 05 Apr 2004 23:32:08 +0200 Arnold Nipper <arnold () nipper de> wrote:of course this server does have a reverse mapping. But this reverse mapped doamin does not have an MX record.yes, and that's what's wacky. there is no requirement in the RFCs that i'm aware of that mail senders have MX records pointing back at them. there's not even a requirement for MX records for a domain, the SMTP RFCs clearly indicate that in the absense of an MX record, an A record will suffice.
People do all sorts of wacky things in the name of policy. The .za registrar, for example, required nameservers for domains in it to respond authoritatively and positively to questions about PTR records for its (the nameserver's) own IP address... -- Niels. -- Today's subliminal thought is:
Current thread:
- Re: Mailserver requirements, (continued)
- Re: Mailserver requirements Charles Sprickman (Apr 05)
- Re: Mailserver requirements Peter Galbavy (Apr 06)
- RE: Mailserver requirements Mike Walter (Apr 05)
- Re: Mailserver requirements Arnold Nipper (Apr 05)
- Re: Mailserver requirements Daniel Roesen (Apr 05)
- Re: Mailserver requirements Arnold Nipper (Apr 05)
- Re: Mailserver requirements Daniel Roesen (Apr 05)
- Re: Mailserver requirements Jim Segrave (Apr 06)
- Re: Mailserver requirements Arnold Nipper (Apr 05)
- Re: Mailserver requirements Valdis . Kletnieks (Apr 05)
- Re: Mailserver requirements Charles Sprickman (Apr 05)
- Re: Mailserver requirements Richard Welty (Apr 05)
- Re: Mailserver requirements Niels Bakker (Apr 05)
- Re: Mailserver requirements Jeff Workman (Apr 05)
- Re: Mailserver requirements Richard Welty (Apr 05)