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  • 1.  Mail Loop in SMG

    Posted Jul 05, 2020 06:03 PM

    Hi All, 

    Hope everyone is doing well.

    Our customer is currently migrating from LN to O365 and currently undergoing end-to-end tests. Just this morning, they received some test email coming from o365connectorvalidation@customer.domain. However, emails coming from one test user who is now on-board O365 return mail loop status on our SMG. What could be causing the mail loop?




  • 2.  RE: Mail Loop in SMG

    Posted Jul 05, 2020 07:38 PM
    Where does the send connector for o365 send mail for inbound to your environment??




  • 3.  RE: Mail Loop in SMG

    Posted Jul 05, 2020 07:40 PM
    You have also blocked too much of the picture to provide any real benefit. Give the complete header. And stop cutting out valuable data.




  • 4.  RE: Mail Loop in SMG

    Broadcom Employee
    Posted Jul 06, 2020 11:45 AM
    It is difficult to tell from the information provided but a mail loop is detected by SMG when the connecting IP is either an IP that is configured on the SMG OR an IP address of SMG is one IP address prior to the connecting IP address.

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    Strategic Support Engineer
    Broadcom
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