It's happening really something with the mail subsystem there :D
ERROR: OTRS-otrs.PostMasterMailbox.pl-10 Perl: 5.10.1 OS: linux Time: Wed Apr 11 10:40:02 2012
Message: Found no Queue for DWH-SIT::Install!
Traceback (2751):
Module: Kernel::System::Queue::QueueLookup (v1.136) Line: 515
Module: Kernel::System::PostMaster::DestQueue::GetTrustedQueueID (v1.27) Line: 118
Module: Kernel::System::PostMaster::Run (v1.87) Line: 354
Module: Kernel::System::MailAccount::POP3::Fetch (v1.9) Line: 201
Module: Kernel::System::MailAccount::MailAccountFetch (v1.17) Line: 424
Module: main::Fetch (v1.4) Line: 180
Module: /opt/otrs/bin/otrs.PostMasterMailbox.pl (v1.4) Line: 93
But, beleve me, the queue is live.
it's become keysensitive something ? I admit that the filter and the real name doesn't match for this reason... but it was as is since 3 year up to now ;)