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Editorial Team
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Asked: 2026-05-25T18:24:10+00:00

We hosted our website over Amazon EC2 but now we are facing problem in

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We hosted our website over Amazon EC2 but now we are facing problem in delivering mails to yahoo and hotmail but Gmail is fine.

But as per my knowledge this might be due to reverse DNS lookup.

i also got a good explanation here

but now when i am trying to fill the form(you can refer this link for detail https://forums.aws.amazon.com/ann.jspa?annID=624) at Amazon for reverse dns for my elastic IP then it will ask me to provide a IP address for my Elastic IP and that IP address is used for reverse DNS look up.

So now i am confused which IP address i should provide in that from.

SO please help me on this issue.

-Thanks

P.S.

I also find a reverse DNS address after entering my elastic IP at http://lookupserver.com/ can i use that address at amazon for reverse DNS lookup.

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1 Answer

  1. Editorial Team

    Your Elastic IP Address is an IP address. It’s that simple. No translation is needed. Use the Elastic IP address that you have associated with the instance sending your emails.

    If you don’t have an Elastic IP address allocated, you’ll want to take care of this before filling out the form.

    To get even better deliverability from EC2, look into using the relatively new SES (Simple Email Service).

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