Search Again: Re: MX chains? From: Stonewall Ballard Date: Thursday, June 8, 2000 Time: 2:33:43 pm At 11:07 AM -0700 6/8/00, Men & Mice Support wrote: >At 12:42 PM -0400 6/8/00, Stonewall Ballard wrote: >>This may be a bit OT. If so, I apologize. >> >>Can someone tell me what happens if there's a chain of MX records? >>For example, domain A has an MX record for host B, but B has a high >>priority MX record for host C and a low priority MX record for >>itself. Like this: >> >>A MX 10 B >>B MX 10 C >>B MX 20 B >> >>Is it possible for mail being sent to A to be handled by C? > >MX records aren't supposed to chain. If you want mail for A to be >handled by C, but don't want to code in the same two MX records, you >may be able to use a CNAME record instead. > >A CNAME B > >This gives A all the same properties as B, including MX records. >Note that you can't do this if there are any other records named A, >or if either of a couple of other conditions are true. Actually, I'm hoping that A will _never_ be handled by C. From what you say, it seems that it won't. The Sendmail book gives me the impression that MX lookups are never recursive, so I think I'm safe. Thanks! - Stoney -- --------------------------------------------------- Stonewall Ballard Stonetics, Inc. sb@stonetics.com http://www.stonetics.com/

Messages In This Thread: MX chains? by Stonewall Ballard on Jun 8, 2000 at 9:43:40 am Re: MX chains? by Men & Mice Support on Jun 8, 2000 at 12:52:58 pm Re: MX chains? by Stonewall Ballard on Jun 8, 2000 at 2:33:43 pm