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spower22

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New Exchange Server returns - 550 smtp, 553 sorry the domain isn't in my list of allowed rcpthosts

HI,
New SBS03 Server, uses get bounce mails when attempting to send mail -

There was a smtp communication problem with the recipient email server.  <chdsligo.ie #550 smtp, 553 sorry that domain isn't in my list of allowed rcpthosts <5.5.3 chkuser>

I've looked at other similar posts but none seem to be relevant, any suggestions?
Exchange

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spower22
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Nivlesh
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Hi.

Is this a problem sending to any email address or some selected ones? If it is just one email domain then it is most likely an issue with the receiving email server (it must have an allowed list of servers .. go figure!!)

Cheers
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Nivlesh
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can you please post the answer to your problem for future readers of this website?
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Exchange
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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