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StefanoC66's avatar
StefanoC66
Iron Contributor
Jul 12, 2024

Mail Flow Loop prevention

We are setting up an environment where we have a shared smtp between 2 exchange organization for migration.

So on each organization we'll configure a send connector for the SMTP domain.com ( internal relay ) 

To prevent a mail loop for non existent recipient I think a mail flow rule must be created, and I saw some articles that I couldn't find anymore, to check for the X-headers.

Can anyone help me providing some examples ?

thanks

 

2016
Exchange Server

1 Reply

  • taclmont's avatar
    taclmont
    Iron Contributor
    Jul 19, 2025

    In the mail flow rules, check the box to stop processing more rules, or you can use the command: Set-TransportConfig -MaxHopCount 30 to limit the number of mail forwards to a maximum of 30 times.

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