NDR 550 5.4.4 from Exchange


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A few users at my company randomly receive NDR’s Containing the information below when they send to a recipient not on our domain…

Generating server: YOURSERVER.YOURCOMPANY.COM

IMCEAMAILTO-someone+40remotedomain+2Ecom@YOURCOMPANY.COM
#550 5.4.4 ROUTING.NoNextHop; unable to route ##

Although I do not know why and it happen’s so rarely that I am not worried about it I thought I would at least post the fix in case I forget, like I said, it rarely happens.

To change/fix it do the following…

Open Contact Email Setting:

Email Box Within Contact Information

Next you will see a box similar to the one below. The email type must be set to SMTP.

Email Properties - change type to SMTP




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One Response to “NDR 550 5.4.4 from Exchange”

  1. Nick says:

    Thanks –
    I had two users with this problem.

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