exchange 2010 not receiving

We have one SBS 2011 with exchange 2010 server and we are not receiving any email as of 24 hours ago. Our spamfilter can connect to the server, port 25 is open and everything looks perfect but email doesn't show up in the mailbox. OWA is working and phones are connected but no new email. we cannot receiving internally or externally--- When we try to send email using telnet we get an error that it is unable to relay. Any ideas. Can we delete the two connectors mail.domain.local & and the recreate them?
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ASIL_KEWALConnect With a Mentor Commented:
EMC--> Organization config--> hub transport --> accepted domain

Have you created entry for accepted domain, if not create the same and make "" as default true.

Madan SharmaConnect With a Mentor ConsultantCommented:
do the following
1. Create accepted domain
2. Enable your  receive connector to accept mail from anonymous users, Exchange users etc by going into property of receive connector under Permission Groups.
3. Test your exchange server on for receive and send also.
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