I am running a Zimbra virtual machine on Ubuntu 14.04.4 LTS.
I am getting a few emails returned to me with this message:
<firstname.lastname@example.org>: host mxia.craigslist.org[184.108.40.206] refused to talk to me: 554 [1F14D9E7-73BD-489F-AC79-4E640DB27254@mxi6a] coldmail.co.xx.xx.xx.in-addr.arpa [xx.xx.xx.xx] Please setup matching DNS and rDNS records: http://www.craigslist.org/about/help/rdns_failure
I run this on a virtual machine running on a dedicated server that I rent. My host assures me that the rdns record is setup correctly to my domain.
When I check on http://mxtoolbox.com/ they are returning this to me:
Is this something I need to correct on my virtual machine setup or is it something I need to get my host to correct?