We are not receiving email via Gravity Form on our site because of
MSFT and their protection.outlook.com config.
We have WP-MAIL-SMTP plugin installed however, the standard config is
still not allowing mail through.
What is your recommended config for WP-MAIL-SMTP to allow mail to be
delivered to a protection.outlook.com hosted mail service?
Here are our MX records:
XXXXXXX.inbound.protection.outlook.com.
XXXXXXX.inbound.protection.outlook.com.
XXXXXXX.inbound.protection.outlook.com.
Mail is being delivered to every other service mail account (GOOG,
YAHOO, etc). This is all specific to the protection.outlook.com
service.