Re: [PHP3] Re: [PHP-DEV] Re: [PHP3] CheckDNSRR failing on a valid domain

Hello Sascha, On 22-Aug-99 11:18:37, you wrote: >> > Right, but I may send messages to mlemos@e-na.net and they get delivered. >The normal MTA process to deliver to a@b >1. Are there any MX records for b? >2a. Yes: > Retrieve list, store list, sort by priority, try each host > beginning with the one with the highest priority (=lowest > number in the MX record) >2b. No: > Retrieve A record for b and try to send it to there >3. If email was not sent successfully, wait time T and go to 1 But how do I retrieve an A record for a domain in PHP? It seems that I can only get MX records, not A. >> > But, is there any rule/RFC that tells to look for mail.domain when you >> > don't find a MX record, or was that a logic guess that you made? >RFC 974, "MAIL ROUTING AND THE DOMAIN SYSTEM" Thank you. Regards, Manuel Lemos Web Programming Components using PHP Classes. Look at: http://phpclasses.UpperDesign.com/?user=mlemos@acm.org -- E-mail: mlemos@acm.org URL: http://www.mlemos.e-na.net/ PGP key: http://www.mlemos.e-na.net/ManuelLemos.pgp --