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Exchange 2010 error in inbounds

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when i try to send E-mail From any outside domain to our Exchange 2010 server give me message

#554 5.4.4 SMTPSEND.DNS.MxLoopback; DNS records for this domain are configured in a loop ##

Note: we use external MX record from our ISP company

our Domain not Have MX record

the problem in receiving but sending no problem

also what about send connector and receive connector configuration

thanks for all

Tuesday, January 8, 2013 8:35 AM

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Have you seen this previously solved question - http://social.technet.microsoft.com/forums/en-US/exchangesvrsecuremessaginglegacy/thread/67e00704-6bc5-42b4-acf7-ff43db6bde85. Could be as simple as a DNS configuration. Review that article to see if it is relevant.
JAUCG - Please remeber to mark replies as helpful if they were or as answered if I provided a solution.
- Proposed as answer by cara chenModerator Thursday, January 17, 2013 9:26 AM
- Marked as answer by cara chenModerator Thursday, January 24, 2013 7:36 AM
Tuesday, January 8, 2013 2:26 PM