Hi All
I just spent a good part of a week trying to figure out why i could not route mail through one of my clients mail firewalls (they are military so not much gets through)
they supplied me with SMTP details and had it configured the way they wanted but it would still not work.
After much trial and error i had to override / add some parameters to the phpmailer class at
core/model/modx/mail/phpmailer/class.phpmailer.php
I feel there should be something in the modx system settings to configure the smtp options array the same way we can set SMTPAuth, username / pass etc instead of me hardcoding this solution in the class.