troubleshooting Question

451 4.4.0 primary target ip responded with 421 4.7.0. Too many errors on this connection

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fais79 asked on
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We are using Exchange 2010.  In last couple of days I have noticed emails gathering in the Queue.  Around 400 emails are there in Ready state.  Emails are flowing in and out but at a very slow speed and I have noticed the Queue goes up and down e.g. few minutes ago it was 417, now its 401..

I cannot figure out what is the cause.

Help please.


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