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Couple of issues after going from exchange 2003 to 2010

Posted on 2014-03-05
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Last Modified: 2014-03-10
So I was able to migrated fine from 2003 to 2010.

Only ran into a couple of issues

1. Outbound mail is coming out of .226 instead of .227. It needs to be .227 since .226 is blacklisted.
This is probably why I'm getting this messages:
BL2FFO11FD022.mail.protection.outlook.com gave this error:
Service unavailable; Client host [x.1x.x.226] blocked using Blocklist 1; To request removal from this list please forward this message to delist@messaging.microsoft.com

Not sure what's going on here, routing group was deleted from 2003 to 2010

Could this also be related to outbound messages not going out and stuck in the queue?
550 connection refused.
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Question by:uscost
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Expert Comment

by:Adam Brown
ID: 39907870
That is a likely cause of outgoing queues, yes. If an email server on the other end just refuses the connection rather than generating an NDR it can cause the messages to get queued rather than canceled.
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by:uscost
ID: 39908302
When I view the message header, it shows .226 instead of .227 public ip address that it should be going out as...
Anyone know why it would do this? I believe this is the root cause.
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Accepted Solution

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uscost earned 0 total points
ID: 39908327
Not sure why I miss this but firewall still had public nat .227 pointed to old server, pointed to new server, mails are now coming out of new server via .227.
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Author Closing Comment

by:uscost
ID: 39917030
found own solution
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