Setup: Ubuntu 16.x, Postfix, PHPMailer SocketLabs (mail relay service) - to send out server emails Union Solution Exchange Server - to send and receive formal email from outlook
Im trying to send out emails from my ubuntu linux server that contain simple form data (name, message, phone etc). I have been trying in vain to send emails from my PHP to emails, they send, but they get blocked as spam/junk.
I've recently switched mail services (from zoho to a solution union exchange server) and I cannot get past barracuda (even modifying whitelists / spam settings etc) with my own mail, but I can see them as junk in my hotmail. (cannot not send from [email protected] to [email protected]). They get immediately canned and not delivered.
Solutions Union said I was spoofing the emails and I cannot whitelist my own domain I'm using and sending from? Ok. They suggested buying another domain. I now own potlickers.net.
They also mentioned I should take that domain and use it to send my emails via open relay (again socketlabs).
So, if my webserver is setup on a fqdm such as potlickers.com, and i send the mail from that server, how do i setup the correct architecture to send mails from potlickers.net to the open relayserver so my emails are free and clear and not spoofed?
Can i configure postfix to send mail from potlickers.net even though its hosting on blah.potlickers.com?
I understand to also add dkim and PTR.
Help stackoverflow1 - your my only hope. TIA much much mucho thanks.
So I think I got it.
Reconfigured postfix as a satellite. Pointed to smtp of relay mail server. Removed all SMTP settings in PHPmailer that point to server, and credentials.
Fire away - works like a charm.
Satellite server has the new domain potlickers.net versus the webserver domain potlickers.com
Seems to work ok for now. Will update moving forward.