Sean Gaughan
asked on
Unable to send from Exchange 2010 to Exchange 2003 Coexistence mode
I get the error:
"451.4.4.0 Primary target IP address responded with 421.4.4.2 Connection dropped due to SocketError"
I am able to send from 2003 to 2010, and from 2010 to internet email addresses and back again however the only route that doesnt work is from 2010 to 2003.
I have created a bidirectional RGC but still the same error appears. Googling this issue only leads to dead ends.
I would massively appreciate it if anyone could help!
"451.4.4.0 Primary target IP address responded with 421.4.4.2 Connection dropped due to SocketError"
I am able to send from 2003 to 2010, and from 2010 to internet email addresses and back again however the only route that doesnt work is from 2010 to 2003.
I have created a bidirectional RGC but still the same error appears. Googling this issue only leads to dead ends.
I would massively appreciate it if anyone could help!
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I remember this one. Can you check 2003 Default Virtual Server setting. Just read this article.
http://demazter.wordpress.com/2010/04/08/exchange-server-mailflow-during-migration/
http://demazter.wordpress.com/2010/04/08/exchange-server-mailflow-during-migration/
ASKER
Ah ok. So should I created a new SMTP connector in 2003 with the purpose of routing to 2010 Exchange?
Sorry if I sound a bit dense, its my first time doing this.
Sorry if I sound a bit dense, its my first time doing this.
ASKER
Already done that unfortunately. :( Still wont play ball. I don't get it how they both see each other with connectivity as follows working fine:
Exchange2003>Exchange2010
Exchange2003>Internet
Internet>Exchange2003
Exchange2010>Internet
Internet>Exchange2010
With the only route not working being:
Exchange2010>Exchange2003.
Its so weird. :(
Exchange2003>Exchange2010
Exchange2003>Internet
Internet>Exchange2003
Exchange2010>Internet
Internet>Exchange2010
With the only route not working being:
Exchange2010>Exchange2003.
Its so weird. :(
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Great thanks :)
ASKER
This was the eventual fix.
Exchange
Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.
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ASKER
Surely the ports would be open for it to do that?
Thanks,
Seán