force smtp over specific wan link

Hi brucepott,

Thank you for reaching out to the Community! 

Did you configure email protection in MTA? If yes, check out the following Community Recommended Read for more information: 

• Sophos XG: How to setup MTA mode when you have multiple WAN ports or alias IP addresses

Thanks,

Hi,

Thanks for the hint. We are however using legacy mode because we need to send via a relay host.

B.

Hi brucepott,

Thank you for the update. What is the current firmware version on your firewall? Would it be possible for you to share the support access id from your firewall with me via personal message? I'll double-check the current configuration and update you with the next step. 

Based on the current firmware version, you could configure the policy route for SMTP services to use specific outbound gateway.

Example SD-WAN policy screenshot: 

Thanks,

SFOS 18.0.5 MR-5-Build586 i sour firmware

thanks am going to try that now

thank you very much, the SD-WAN policy solved this

great

Hi brucepott,

Thank you for the update. I'm glad that your issue is resolved now.

Thanks,