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1) Sign up for the FBL at yahoo. https://help.yahoo.com/kb/postmaster/ 2) Are you respecting NDR and Unsubscription links? 3) Do you have and maintain postmaster@ and abuse@ mailboxes? It looks like your have good FCrDNS, SPF, DKIM, so it could be user complaints, which you will not know about unless you sign up for FBL. You are missing an SPF for your ...


Akamai uses a custom HTTP Header True-Client-IP, you will need to extract those IPs to collect the rDNS entries for each, you can pipe the access logs to syslog and have syslog to the rDNS lookup. Sources: https://community.akamai.com/videos/1232 Syslog-ng how to get domain names instead of IP address


Yes, it doesn't matter. Simply setup your reverse DNS zone on your hosting or on the domain itself using a zone and then a PTR record and then contact them here: https://aws.amazon.com/forms/ec2-email-limit-rdns-request You'll fill in the IP and the host and they will then approve. Ensure it is setup correctly, else they will not approve the reverse DNS. ...

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