What find solution for Exchange Error?

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myleszikiom Posts 2 Registration date Friday 17 July 2015 Status Member Last seen 26 July 2015 - 17 Jul 2015 à 19:34
danielriqueti Posts 2 Registration date Sunday 26 July 2015 Status Member Last seen 26 July 2015 - 26 Jul 2015 à 08:26
Can you tell me why I am getting this message when emails are sent out? It doesn't do it to all emails, just some of them. We have Exchange 2003. Here is the message:

You do not have permission to send to this recipient. For assistance, contact your system administrator.
Related:

2 responses

danielriqueti Posts 2 Registration date Sunday 26 July 2015 Status Member Last seen 26 July 2015 2
26 Jul 2015 à 08:26
To determine if your exchange server is an open relay, look here:
https://bytes.com/topic/windows/answers/963071-exchange-error#post3793694
girossapoha Posts 1 Registration date Friday 24 July 2015 Status Member Last seen 24 July 2015
24 Jul 2015 à 08:17
I would pay particular attention to the "SMTP authentication and relaying" section. It is possible your system has been "flagged" as being an open relay. If so, then you may be on many block lists.

To determine if your exchange server is an open relay, look here:
https://groups.google.com/forum/?hl=en#!topic/microsoft.public.exchange.clients/TfSIa7s0dk0