After a corruption I managed to mount my mailbox store database and re-connect the mailboxes to the users. Though my configuration is same as before, we couldn't receive external emails. I tried to download our pop3 emails which are externally hosted using IGetMail as usual, but IGetMail gives a message "Cannot convert server name to an IP address. Possible incorrect server name" on a regular basis. It sometimes starts to download few emails and gets interrupted. The annoying thing is even those messages that managed to reach our exchange server couldn't be delivered to the corresponding client mailbox. (the clients use outlook 2003 in cached mode).
From the client software side, when we click send/receive we used to get MS Exchange Error, object couldn't be found. Then I set the offline address book to update automatically, then the error message disappeared, but the exchange receipt task hangs at 97%.
From our DC side I get "RPC communication error and LDAP failure". I've never troubleshoot these kind of errors.
My Exchange server is down for the past 6 days, please help me to resolve these problems ASAP. Who ever solves this problem will get all the 500 points.