Dear All, I've experienced a problem: All of my queues has it's own email address, and the sender account is available. When I compose or forward a ticket from these queues, then will get a error message "Message: Can't use from ' queue-address@exsample.com': 4545.7.3 Client does not have permission to Send As this sender." I am running an other OTRS with connect to the same email system and it's works fine. I've no idea where need I check and configure. Have any one can help me? Thanks advance. -- Tiger He hpsbigcat@gmail.com