Cannot email to rogers.com mailbox account

I got the following bounce back msg when I tried to deliver an email from Windows 2003 smtp server to catmondo101@rogers.com but when I used SMTPDIAG and http://www.email-unlimited.com/tools/verify-email.aspx to verify this email address.  They both have positive result.

my bounce back message

Delivery has failed to these recipients or distribution lists:

catmondo101@rogers.com
A communication failure occurred during the delivery of this message. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message later, or provide the following diagnostic text to your system administrator.
..............................................................
Diagnostic information for administrators:

Generating server: mail.mycompany.com

catmondo101@rogers.com
#< #5.5.0 smtp;554 delivery error: dd This user doesn't have a rogers.com account (catmondo101@rogers.com) [0] - mta107.rog.mail.sp1.yahoo.com> #SMTP#

If they block my server or other issue?
LVL 1
KANEWONGAsked:
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MesthaCommented:
The message is being rejected by the remote server. Nothing you can do about that. It is an issue with the remote email servers. It maybe that not all of the servers recognise that the email address is valid, which isn't unusual for large email providers.

Nothing you can do. If you control the email address at the ISP then contact the ISP support, although they will probably do very little.

Simon.
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KANEWONGAuthor Commented:
How come when I use SMTPDIAG, the test can go through? I am attaching my smtpdiag result for reference.
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KANEWONGAuthor Commented:
file is here...
result.txt
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MesthaCommented:
If you look at the result it is connecting to a different server.
This is completely out of your control. There is nothing that you can do about, as you cannot force your server to connect to a specific mail server.

Simon.
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