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

Outbound Flow Setup on Office 365

To set up outbound flow set up in Office 365:

• Login to your Microsoft Office 365 administrator center account

• Click 'Admin' from the left-menu

• Click 'Exchange':
  

• Click 'mail flow' on the left

• Click 'connectors' in the top navigation:

• To add an 'Outbound Connector':

• Select 'Office 365' in 'From' drop-down menu 

• Select 'Partner Organization' in the 'To' drop-down menu:

• Click 'Next'

• Enter a descriptive name for the outbound connector in the 'Name' field

• Click 'Next'

• 'When do you want to use this connector?' - Select 'Only when I have a transport rule set up that redirects messages to this connector'

• Click 'Next':

• 'How do you want to route email messages'

• Select 'Route through these smart hosts'

• This will relay messages to the Secure Email Gateway MTA.

• The FQDN is in the confirmation email sent to you after we finished provisioning your Secure Email Gateway instance.

• Enter the FQDN in the space provided then click 'Next':

• 'How should Office 365 connect to your partner organization's email server?' - Select:

• 'Always use Transport Layer Security (TLS) to secure the connection'

AND

• 'Issued by a trusted certificate authority'.

This will make sure the connection to the mail server is securely encrypted and authentic.

• Click 'Next'

• 'Validate this connector' - Add an email address at which you can receive mail in the field provided, then click 'Validate'. Office 365 will send you an email to test all settings are correct:

• Click 'Next' 

• click ' Create Connector'