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| reply to Mr Pilkington Re: Public pressure works against prominent compan
I thought that MX records were for telling SMTP servers where to send the mail.
I'll send a mail to someone at dslreports.com using my ISP My email client is configured to send stuff to mail.mchsi.com My email client looks up mail.mchsi.com using my ISP's DNS lookup servers 204.127.202.4 or 216.148.227.68 It either finds it in the cache or tells me to go the dns server for that domain or does it itself (confused on how this part works) My email client connects to 204.127.203.151 and sends the message mail.mchsi.com (204.127.203.151) sees that I'm sending something to dslreports.com mail.mchsi.com (204.127.203.151) looks up the DNS server of dslreports.com or finds it in cache using it's DNS server (probably the same as mine) It looks to see if there is an MX record and if it finds one it uses it and looks up the IP address of them using DNS because the addresses are URLs It tries the lowest priority number and goes up until it connects to one If it doesn't find an MX record it just uses the web server (209.123.109.175) It connects using one of the methods above and sends it on it's way
This is at least how I understand it. -- "The bad news is that we are told that Michael Powell, one of Washington's better bureaucrats, is calling it quits today after four years at the helm of the Federal Communications Commission." - WSJ 2005/01/21 |