andrewdixon -> RE: Unable to send/receive mail (3.Apr.2014 6:25:14 AM)
Please follow the procedure given below-
Check you DNS setting-
make sure you have the same DNS setting on the internal and external make sure both have same IP and that AdapterGUID is point to your network card ID.
Make sure IPV6 on your nic is set to auto (only if you use IPV4)
on IPV4 make sure the DNS point to your server and there is only primary DNS listed.
Edit your Host file
On EAC check the following on your receive connectors
Sign in to the ECA by using the administrator account.
Click mail flow.
Click receive connectors.
In the Select server box, select the remote Exchange server that the email message should be sent to.Note To determine the correct Exchange server, review the send protocol logs from the server that the email message is stuck in.
Select the receive connector and then click Edit.Note Typically, the receive connector is the Default server_name receive connector for the remote Exchange server
Click security, under Authentication, make sure that Exchange Server Authentication check box is selected.
I hope this may solve your issue.