We have one issue of restoring email, and we took support from Symantec Expert Engineer , He sort out and resolved the problem in great manner. So i want to share it with All Netbackup Users who are having problem in restoring the email from Exchange.

ISSUE:
GRT individual email recovery failed
ERROR CODE/MESSAGE:
Status code 2810

ENVIRONMENT/CONDITIONS:
Netbackup 7.1.0.4 Master Server on WIndows
Netbackup 7.1.0.4 Media Server whichis Exchnage 2010 Mail Server as well.
Netbackup 7.1.0.4 Mail server another
Netbackup 7.1.0.4 HUB CAS server

EVIDENCE:
2/14/2013 16:11:56 - Info bpbrm(pid=1448) (CAS SERVER Name) is the host to restore to
2/14/2013 16:11:56 - Info bpbrm(pid=1448) reading file list from client
2/14/2013 16:11:57 - connecting
2/14/2013 16:11:57 - Info bpbrm(pid=1448) start nbfsd on client
2/14/2013 16:11:58 - Info bpbrm(pid=1448) start nbgre on client
2/14/2013 16:12:00 - Info tar32(pid=0) Restore started
2/14/2013 16:12:00 - connected; connect time: 00:00:03
2/14/2013 16:12:09 - begin Restore
2/14/2013 16:12:12 - restoring image DAG1_1360667421
2/14/2013 16:14:06 - Info tar32(pid=0) done. status 13
2/14/2013 16:14:08 - Info tar32(pid=0) done. status: 13
2/14/2013 16:14:13 - Info tar32(pid=0) done. status: 13: file read failed
2/14/2013 16:14:13 - Error bpbrm(pid=1448) client restore EXIT STATUS 13: file read failed
2/14/2013 16:14:30 - restored image DAG1 1360667421 - (file read failed(13)); restore time 00:02:18
2/14/2013 16:14:34 - end Restore; elapsed time: 00:02:25
MS-Exchange-Server policy restore error(2810)

SOLUTION/WORKAROUND:
Collected the ncfgre and nbflbc and other logs and uplaoded to the evidence.

The servcie accountis configured properly
PORTMAP is runningon the Media server and the NFS is configured
Ports for NFS @ 111 are working from the Media and CAS servers.
HOST files are updated.
Few NBFSD mounts were stuck

Consulted below technical note.

How to manually test NetBackup Granular Restore Technology (GRT) NFS connections between media server and client

http://www.symantec.com/business/support/index?page=content&id=TECH124810

If   this situation comes again in future kindly reboot the media server in picture and that will kill any pending NBFSD mounts and restores will work.