asked on

Exchange 2003 MTA Settings

I've had mail bounce back to me from verizonwireless recently. I telnet-ed to their mail host and got the following message. I've checked senderbase.org and it does not state that we are on any restricted lists. So it must be our MTA perhaps? Does anybody know what settings I need to change on Exchange 2003 SP1 (running on Server 2003 R2) to clear this up? I assume we're having trouble with other mail domains too but I can personally confirm this one at this time.

554-mercury.verizonwireless.com
554-Your access to the VZW mail systems has been rejected due to the sending MTA
or Network Service Provider's poor reputation / e-mail hygiene on the Internet
.
554-
554-Please reference the following URL for more information:
554-http://www.senderbase.org/search?searchString=67.111.248.151
554-
554 If you believe that this failure is in error, please contact the recipient v
ia alternate means.

Connection to host lost.

Thanks in advance.

ASKER CERTIFIED SOLUTION

Sembee

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STorabi

ASKER

Sembee, thanks very much for the response. Although I can't verify your theory at this time (I am sadly not the firewall administrator). I will award you the points for your clear explanation and supporting links. Thanks

Anthony H.

so there was no solution. i'm having the same problem but no solution yet?