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The Accepted Domains where &nbsp;set wrong, I changed this and now is all working as it should be. &nbsp;Thanks
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The Accepted Domains where  set wrong, I changed this and now is all working as it should be.  Thanks

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I have recently migrated a client from SBS 2003 to SBS 2008. &nbsp;Everything has been going fine till today, now external email can't be received. &nbsp;The message I get is :<br />
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&nbsp; &nbsp; &nbsp; jo@blogs.org on 06/04/2009 12:00<br />
&nbsp; &nbsp; &nbsp; The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. &nbsp;If it still fails, contact your system administrator.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;&nbsp;mk-outbboundfilter-4.mail.<wbr />uk.tiscali<wbr />.com #5.0.0 smtp; 5.1.0 - Unknown address error 550-'5.7.1 Unable to relay' (delivery attempts: 0)&gt;<br />
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Can anybody help me ?
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I have recently migrated a client from SBS 2003 to SBS 2008.  Everything has been going fine till today, now external email can't be received.  The message I get is :

      jo@blogs.org on 06/04/2009 12:00
      The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again.  If it still fails, contact your system administrator.
            < mk-outbboundfilter-4.mail.uk.tiscali.com #5.0.0 smtp; 5.1.0 - Unknown address error 550-'5.7.1 Unable to relay' (delivery attempts: 0)>


Can anybody help me ?

Small Business Server 2008 can't receive external emails

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

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.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.