Configurable Reverse DNS for Amazon EC2's Elastic IP Addresses

I'd like to call your attention to a new feature that we rolled out earlier this month. You can now provide us with a configurable Reverse DNS record for any of your Elastic IP addresses. Once you've supplied us with the record, reverse DNS lookups (from IP address to domain name) will work as expected: the Elastic IP address in question will resolve to the domain that you specified in the record.

If you are using an EC2 instance to send email, you'll appreciate this one. Some other types of applications and protocols (FTP and Secure FTP come to mind), can also benefit from it, but most of our customers have asked for it after they tried to send email from Amazon EC2.

You can provide us with your Reverse DNS records using this form. We'll set up the mappings as quickly as possible and we'll send you an email once everything is all set up.

We count on our customers to provide us with the feedback needed to assign the proper priority to this and to other features. We're always happy to hear from you; send your feature requests to awseditor@amazon.com and I'll make sure that they are routed directly to the proper team.

-- Jeff;

Comments

[Fredericsidler]

I'm using the excellent authsmtp.com service for a while. The two major webmail that are causing problem with EC2 as email servers are Hotmail and Yahoo services. Will this new functionnality solve this issue. Wait and see.

[Calbucci]

That's really cool. Reverse DNS is probably the most forgotten feature by web hosters and cloud providers, and simply critical to establish trust with spam filters and even Google core Search engine.

[kaz]

This is cool, but not perfect. As for web hosting, AWS provide almost all services. But only DNS hosting is missing. I think supporting DNS hosting is also good for ELB. Because the issue of root domain with ELB should be supported. Would you please put this on the future plan?

root domain issue: http://developer.amazonwebservices.com/connect/thread.jspa?threadID=32044

[Arbab]

Have anybody tested it? Is there any success story that has been whitelisted by gmail, hotmail and yahoo ?