gwia shows transferred MTA shows received users do not get mail

[JNRII]

NetWare 6.5 SP7
GroupWise 6.5.6
Internal mail works fine.
Mail goes out to external, but still shows pending at client
External mail hits Barracuda, goes to GWIA, gets passed to MTA, user
never receives.

GWChecks have been run.

Please help, day 3 down from server drop disaster.

Thank You

Jim