Sending E-mail to AOL and Hotmail

To send e-mail properly to AOL and Hotmail, three things must match:

  • Your IP must have reverse DNS.
  • If you ask for the forward DNS record for the reverse, it must match.
  • Your mail server's HELO must match the DNS records.

If you need to test your setup, use these commands.

$ host mhtx.net
mhtx.net has address 209.61.157.17
$ host 209.61.157.17
17.157.61.209.in-addr.arpa domain name pointer mhtx.net.
$ telnet 209.61.157.17 25
Trying 209.61.157.17...
Connected to mhtx.net.
Escape character is '^]'.
220 mhtx.net ESMTP Postfix

This entry was posted on 27/02/2007 (Tuesday) at 11:05 am and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.
Printed from: http://rackerhacker.com/2007/02/27/sending-e-mail-to-aol-and-hotmail/ .
© Major Hayden 2012.

1 Comment   »

  • Malinda Stehr says:
    02.05.11 at 22:01

    Is it possible for the reader to subscribe the blog via other ways instead of using RSS? I never make it work using my readers though I can view it using chrome.


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  • Welcome! I started this blog as a way to give back to all of the other system administrators who have taught me something in the past. Writing these posts brings me a lot of enjoyment and I hope you find the information useful. If you spot something that's incorrect or confusing, please write a comment and let me know. Drop me a line if there's something you want to know more about and I'll do my best to write a post on the topic.
    -- Major Hayden

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