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Exchange NDR 5.5.0 Error

By hongb ·
When I tried to reply a message to one of my senders, I received the following:

Your message did not reach some or all of the intended recipients.

Subject: FW: Undeliverable Mail
Sent: 10/5/2001 4:43 PM

The following recipient(s) could not be reached: on 10/5/2001 4:43 PM
Your mail system could not find a way to successfully communicate with the destination system. Please notify your administrator.
< #5.5.0>

I have an Exchange 2000 server.


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Exchange NDR 5.5.0 Error

by yorkster In reply to Exchange NDR 5.5.0 Error

Exchange 2000 defults to sending a EHLO instead of helo to the recieving server,you may need to change that. Open your exchange console and select connectors, select your virtual SMTP connector and right click and select properties, then select the advance tab to change the helo settings.

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Exchange NDR 5.5.0 Error

by hongb In reply to Exchange NDR 5.5.0 Error

I tried changing the SMTP to HELO instead of EHLO. Still we got the errors when one of our customers sent email to us. Any other suggestions?

Thanks in advance.

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