I just setup a key-based SSH login and disabled password authentication within the sshd_config file to tighten the security on the server. Now when I'm in the GUI admin I receive the following error when I want to view the mail queues;

Server error encountered Message: 
system failure: 
exception during auth {RemoteManager: mail.domain.com->zimbra@mail.domain.com:22} 
Error code: service.FAILURE Method: GetMailQueueInfoRequest Details:soap:Receiver
Has anyone experienced this? Is there a work around? I'm hoping that I won"t have to re-enable password authentication because that would defeat the purpose of running the key-based SSH login.