I am a new user. I setup the service and it working both in and out.
However, I use a website which utilizes a Contact Us page, sending mail via a php script. The failure, from my mxroute account, was:
SMTP error from remote mail server after end of data:
550 High scoring spam message has been dropped, likely blacklist
The DMARC record looks like:
Is there a way to whitelist inbound addresses?