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Just couldn't remember where that was at thx!
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Just couldn't remember where that was at thx!

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We have created two new Mail-Enabled Universal Distribution Group in Exchange 2007; can send messages internally to the group and mail is delivered. &nbsp;External address (i.e. Gmail, Yahoo, etc.) return the following;<br />
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Google tried to deliver your message, but it was rejected by the server for the recipient domain gtjonline.com by mail.gtjonline.com. [107.0.93.134].<br />
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The error that the other server returned was:<br />
550 Requested action not taken: mailbox unavailable<br />
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We have seven other UDG's configured exactly the same that work???
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We have created two new Mail-Enabled Universal Distribution Group in Exchange 2007; can send messages internally to the group and mail is delivered.  External address (i.e. Gmail, Yahoo, etc.) return the following;

Google tried to deliver your message, but it was rejected by the server for the recipient domain gtjonline.com by mail.gtjonline.com. [107.0.93.134].

The error that the other server returned was:
550 Requested action not taken: mailbox unavailable

We have seven other UDG's configured exactly the same that work???

Technology Specialist

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

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.