P
paul23
Guest
I am hoping someone can offer a bit of clarification on dns zone settings, specifically for A records in regards to mail.
Specs: FC3 with Plesk 7.5 Reloaded using PSA out of the box
Issue: a number of large providers (Yahoo, Hotmail and the likes) have been tagging our email as spam/bulk mail even when it is just one recipient at a time sent either through webmail (either SquirrelMail or Horde) and POP using Outlook. This box is 1 years old and never sent an email campaign or any scripting mail from it.
Say you have a domain hosted on a shared ip called domain.com (ip 10.10.10.2) which is a different domain than the nameservers domain ns1.nameserver.com (ip 10.10.10.1) which is also the primary IP of the server.
Question: Does it matter if you point the mail.domain.com A record to the server ip address or to the shared ip address?
We have always pointed to the shared ip address but things were just not working so we ran a test pointing this A record to the server IP address and instantly our messages stopped being blocked.
I understand the best method is to setup the correct reverse records for our shared domains but for some reason our provider controls these reverse records and their naming convention for the reverse records do not point to domain.com but to 10-10-10-2.dedicatedhost.company.com (using the real ip address) but we think this ISP style domain is triggering the SPAM/Bulk filter.
Our reasoning this was triggering the filter:
Understanding the mail server is actually running on 10.10.10.1, the server ip address, and answers a telnet call to domain.com 25 as "10-10-10-1.dedicatedhost.company.com" (also the hostname). The querying mail server or the mail server performing the reverse lookup sees a mismatched name as to what it is expecting.
one last note, once we made this change a dnsreport query shows all mail record errors as resolved.
Can someone shed some light? I apologize if it seems I rambled on about nothing...
Specs: FC3 with Plesk 7.5 Reloaded using PSA out of the box
Issue: a number of large providers (Yahoo, Hotmail and the likes) have been tagging our email as spam/bulk mail even when it is just one recipient at a time sent either through webmail (either SquirrelMail or Horde) and POP using Outlook. This box is 1 years old and never sent an email campaign or any scripting mail from it.
Say you have a domain hosted on a shared ip called domain.com (ip 10.10.10.2) which is a different domain than the nameservers domain ns1.nameserver.com (ip 10.10.10.1) which is also the primary IP of the server.
Question: Does it matter if you point the mail.domain.com A record to the server ip address or to the shared ip address?
We have always pointed to the shared ip address but things were just not working so we ran a test pointing this A record to the server IP address and instantly our messages stopped being blocked.
I understand the best method is to setup the correct reverse records for our shared domains but for some reason our provider controls these reverse records and their naming convention for the reverse records do not point to domain.com but to 10-10-10-2.dedicatedhost.company.com (using the real ip address) but we think this ISP style domain is triggering the SPAM/Bulk filter.
Our reasoning this was triggering the filter:
Understanding the mail server is actually running on 10.10.10.1, the server ip address, and answers a telnet call to domain.com 25 as "10-10-10-1.dedicatedhost.company.com" (also the hostname). The querying mail server or the mail server performing the reverse lookup sees a mismatched name as to what it is expecting.
one last note, once we made this change a dnsreport query shows all mail record errors as resolved.
Can someone shed some light? I apologize if it seems I rambled on about nothing...