Solution;
1. Find offending mail item
2. Delete from store and from mysql
3. Restart machine
Problem;
com.zimbra.cs.service.ServiceException: system failure: missing blob for id: 173411, change: 151673 com.zimbra.cs.service.ServiceException: system failure: missing blob for id: 2156, change: 1721
I had two of these problem emails, I guess the problem was caused by the imapsync import
