From: MP on
i'm getting this error message on 2 of my mailbox store not sure how to fix
this. I can receive emails but i can't send emails.

Exchange waring in event logs

An error occurred on database "exchange1_EX3_SG2\SG2 Mailbox Store
Function name or description of problem: EcGenerateNDR:
Error: 0xfffff9bf

reveive error message when send from my mailbox.

This message could not be sent. Try sending the message again later, or
contact your network administrator. Error is [0x80004005-00000000-00000000].