Clients' emails hitting spam filters after server migration

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Posted by adamwalter, 09-17-2013, 10:34 AM
We host several clients' websites as well as their email. Last month we upgraded our dedicated server and have migrated each client over using WHM transfer and everything is working as it should. However, since the migrations a few clients have been getting a lot of email bounces when sending mail, usually being flagged as spam. I suspect that the issue may lie in our hosting account's new domain name and IP address because those are the ONLY things that have changed between our old server and the new one. I've added SPF records to a couple of accounts, but that doesn't seem to have helped. Whitelisting a domain on the receiving end fixes the problem, but this isn't a viable solution in the long run. There must be something I can do on our end to fix this. Any help would be appreciated!
Posted by BestServerSupport, 09-17-2013, 10:58 AM
I would suggest you to set up rDNS record for your new dedicated server IP address. For this you will have to contact your server provider since only they can add this for you. Please note that most of the providers will consider your emails as SPAM if you do not have correct rDNS entry.
Posted by adamwalter, 09-17-2013, 11:49 AM
Thank you! I checked and that is something that definitely needs changing (it currently resolves to our provider not our server domain). I hope that's the solution to my issues!
Posted by kevincheri, 09-17-2013, 02:50 PM
Any rejection logs here would help to recommend further.
Posted by mellow-h, 09-17-2013, 10:58 PM
It is. You probably need to wait a while before everybody starts seeing the new owner of the IP.