Forum Discussion

thanhtien19's avatar
thanhtien19
Iron Contributor
Dec 25, 2021

How to block email reply back email not exist

We have application email but sent to email exist then system auto reply back email notify to sender and it do full mailbox every monthly, How to prevent this email , I try create rule but this rule can not block email Microsooft Outlook from system. we use exchange 2013 and hybrid office 365. this application form on-premise.

5 Replies

  • Victor_Ivanidze's avatar
    Victor_Ivanidze
    Bronze Contributor

    Create a distribution list NoReply(at)contoso.com with no members and send as this DL.

  • For a mail flow rule, try header includes words and use just "report-type=delivery-status". Add a condition for the address too, so you don't delete all NDRs.

    Is this a shared mailbox? If so, if you create an outlook rule, you need to use a server-side rule. A client-side rule won't work unless you add it as an account.

    Is this a send-only mailbox? If so, use a retention policy to delete mail as it ages.
  • Hello thanhtien19 

     

    Looking at the message header from an NDR notification email, creating an outlook rule based on message header contains: Content-Type: multipart/report; report-type=delivery-status; should do the trick!

     

    Thanks

      • harveer singh's avatar
        harveer singh
        Iron Contributor
        First take a look at the message header of this notification email you received to verify if it shows the exact same string in message content type, next i believe you are trying to create a transport rule, instead of transport rule please try to create a rule from within outlook client.

        Thanks

Resources