Xcitium Secure Email Gateway MSP

• Introduction
  • Email Flow Explanation
• Configure Office 365 Settings
  • Inbound Flow Setup On Office 365
    • Add An Email Flow Rule To Bypass Spam Filtering
    • Add An Email Flow Rule To Lock Down Exchange Online
  • Outbound Flow Setup On Office 365
    • Add An Email Flow Rule To Use The Secure Email Gateway Outbound Connector
• About Xcitium Security Solutions

Add an Email Flow Rule to Lock Down Exchange Online

This rule ensures Exchange will only accept mails from Secure Email Gateway. This stops spammers bypassing Secure Email Gateway and flooding your network with junk mail.

• Log into your Microsoft Office 365 administrator center account

• Click 'Admin' in the left-hand menu

• Click 'Exchange':

• Click 'mail flow' on the left
  

• Click 'rules' in the top navigation:
  
  

• Click 'Add a rule'

• Select 'Restrict messages by sender or recipient'
  
  

In the create rule screen:

• Name: 'Only accept inbound mail from Secure Email Gateway' 

• Apply this rule if - The sender > is external/internal > Outside the organization 

• Do the following - Block the message > delete the message without notifying anyone

• Except if - The sender > IP address is in any of these rang

• Choose a mode for the rule - Select 'Enforce' 

• Click’ Next ‘ 

• Click ‘Finish’