I am having issues with my shopping carts and my autoresponder emails getting sent into Spam or not being delivered properly. My OS is Ubuntu 14.04 Postfix 2.11.0 and most of the software is up to date. I am using BIND and there are several Domains hosted. This is the last major issue I have from my initial setup.
Any help would be appreciated. I believe that the issue is related to Reverse DNS as MXToolbox reports :
Thanks for th info on http://www.intodns.com I can fix a lot of these. It is kind of funny though everything on the server is working well and has for a few months now. The biggest issue I have is the fact that my email is not getting through to several of the larger email suppliers (although some are).
It does look like the issue is happening primarily with PHP Mailer. I use an autoresponder on a couple of sites and on the subscription software it sends a confirmation email via PHP Mailer.
While is ok to use domain as rDNS i would like to suggest to go with subdomain, something like hostname.domain.tld while “hostname” can actually be whatever you want. Some people use hostname, some other random letters/numbers, i’m using cartoon names. For email test go here https://www.unlocktheinbox.com/resources/emailauthentication/ and send email to mailtest@unlocktheinbox.com. After that wait few minutes and see what you get back.