I have a mail server that hosts several client emails but 1 in particular is being blocked because of its SBRS score

Posted by Vince Saavedra on Server Fault See other posts from Server Fault or by Vince Saavedra
Published on 2012-03-20T16:07:59Z Indexed on 2012/03/20 17:31 UTC
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email

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spf

If I was hosting emails for 3 clients and my reverse DNS is mail.allclients.com and I am hosting for client2.com, client3.com etc. What would be the rDNS for client3.com? Would it reflect the rDNS of mail.allclients.com? If so, I do I prevent mails from client3.com from being blocked because the PTR does not match rDNS? Finally on your advice to have my email service publish an SPF record. Is this something I need to submit to the company I registered my mail.allclients.com to? So I for example registered with GoDaddy.com then I will need to submit a request to them to publish an SPF record on their DNS right? Thank you for your advice and kind assistance.
Vince Saavedra

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