Over the past few months, we have noticed a large increase in outbound SPAM activity, which has unfortunately led to a number of our IP addresses and subnets getting listed on RBL's.
As such, we have made the decision to disable PHPMail() entirely across our network, restricting relays via SMTP only.
Please note, that all PHP scripts, or applications should be relaying through the SMTP protocol, and not PHPMail().
This ensures that your messages are relayed through our premium delivery solution, MailChannels without additional cost. This ensures your mail reaches the recipient, without risk of the messages being rejected on the basis of the RBL listings / IP blacklists.
This change has been made effective immediately, and was essential for us to improve our overall network IP reputation.