i set up some filter: Match: Header1:Subject Value:[other] Set Header1:X-OTRS-Queue Value:6 then i run the script: $perl PostMasterPOP3.pl the output is: Message 1/1 (xyticketmail@163.com@pop.163.com) ERROR: OTRS-PM3-10 Perl: 5.10.0 OS: linux Time: Mon Mar 8 17:04:44 2010 Message: Found no $QueueID for 6! Traceback (20629): Module: Kernel::System::Queue::QueueLookup (v1.74) Line: 513 Module: Kernel::System::PostMaster::DestQueue::GetTrustedQueueID (v1.19) Line: 110 Module: Kernel::System::PostMaster::Run (v1.65) Line: 318 Module: main::FetchMail (v1.25) Line: 206 Module: PostMasterPOP3.pl (v1.25) Line: 125 Connection to pop.163.com closed. i already have the QueueID 6: mysql> select id from queue; +----+ | id | +----+ | 1 | | 2 | | 3 | | 4 | | 5 | | 6 | | 7 | | 8 | | 9 | +----+ Is this a Bug?