Overview
Mail flow rules are needed to ensure Hoxhunt's simulation emails are safely delivered to every employee's Inbox. Sometimes Hoxhunt's default whitelisting rules may need to be customized in order to match the current email infrastructure.
Below you will find three common scenarios and suggested solutions.
Figure: Hybrid email environment.
SCENARIO 1:
If Office 365 sees the sender IP as the Hoxhunt's MX IPs 37.139.12.94 and 35.156.0.138:
Create a mail flow rule in Office 365: if sender IP is 37.139.12.94 or 35.156.0.138 then set SCL -1
SCENARIO 2:
If Office 365 sees the sender IP as the On-premise's MX, and MX supports IP-based rules:
Create a rule in MX: if the sender IP is 37.139.12.94 or 35.156.0.138 then set X-HoxHunt header with a random value such as 2325c60d837dk69w30
IMPORTANT: choose your own random value and do not use the value above!
Create a mail flow rule in Office 365: if email contains header X-HoxHunt with value 2325c60d837dk69w30 then set SCL -1 and remove X-HoxHunt header.
IMPORTANT: choose your own random value and do not use the value above!
SCENARIO 3:
If Office 365 sees the sender IP as the On-premise's MX, and MX does not support IP-based rules:
Please set up up a Receive connector and contact Hoxhunt to complete the setup.