Hello, For some reason my OTRS installation stops sending e-mail and according to the log files, its a "out of memory" issue. My server doesnt have memory issues as you can see bellow: free -m total used free shared buffers cached Mem: 3330 3238 92 0 170 1367 -/+ buffers/cache: 1700 1630 Swap: 2055 0 2054 Software version: CentOS Linux 5.5, apache 2.2.3-45, perl v5.8.8, otrs version 3.0.9-01 Logs: [Fri Jul 29 23:20:02 2011][Notice][Kernel::System::PID::PIDCreate] Can't create PID GenericAgent, because it's already running (xy.x.com/32722)! [Sat Jul 30 00:10:14 2011][Error][Kernel::System::PostMaster::Filter::FilterGet][199] ERROR: out of memory DETAIL: Failed on request of size 8160. , SQL: 'SELECT f_type, f_key, f_value, f_name, f_stop FROM postmaster_filter WHERE f_name = ?' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::SystemAddress::SystemAddressQueueID][322] ERROR: out of memory DETAIL: Failed on request of size 8160. , SQL: 'SELECT queue_id FROM system_address WHERE valid_id IN ( 1 ) AND LOWER(value0) = LOWER(?)' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::SystemAddress::SystemAddressQueueID][322] ERROR: out of memory DETAIL: Failed on request of size 8160. , SQL: 'SELECT queue_id FROM system_address WHERE valid_id IN ( 1 ) AND LOWER(value0) = LOWER(?)' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::Queue::QueueLookup][475] ERROR: out of memory at character 16 DETAIL: Failed on request of size 28. , SQL: 'SELECT id FROM queue WHERE name = ?' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::Queue::QueueLookup][482] ERROR: out of memory at character 18 DETAIL: Failed on request of size 28. , SQL: 'SELECT name FROM queue WHERE id = ?' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::CustomerUser::DB::CustomerSearch][310] ERROR: out of memory DETAIL: Failed on request of size 8160. , SQL: 'SELECT login , first_name, last_name, email FROM customer_user WHERE LOWER(email) LIKE LOWER('mailer-daemon@mon1.xyz') AND valid_id IN (1) LIMIT 250' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::Ticket::TicketCheckNumber][261] ERROR: out of memory at character 16 DETAIL: Failed on request of size 28. , SQL: 'SELECT id FROM ticket WHERE tn = ? LIMIT 1' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::Queue::QueueLookup][482] ERROR: out of memory at character 18 DETAIL: Failed on request of size 28. , SQL: 'SELECT name FROM queue WHERE id = ?' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::State::StateGet][223] ERROR: out of memory DETAIL: Failed on request of size 8160. , SQL: 'SELECT ts.id, ts.name, ts.valid_id, ts.comments, ts.type_id, tst.name, ts.change_time, ts.create_time FROM ticket_state ts, ticket_state_type tst WHERE ts.type_id = tst.id AND ts.name = ?' [Sat Jul 30 00:10:15 2011][Error][Kernel::System::Ticket::TicketCreate][405] No StateID for 'new'! [Sat Jul 30 00:10:15 2011][Error][/opt/otrs/bin/otrs.PostMaster.pl][136] Can't process mail, see log sub system! at /opt/otrs/bin/otrs.PostMaster.pl line 116. [Sat Jul 30 00:10:16 2011][Error][Kernel::System::DB::new][181] expected authentication request from server, but received c [Sat Jul 30 00:10:16 2011][Error][/opt/otrs/bin/otrs.PostMaster.pl][136] Got no DBObject at /opt/otrs/Kernel/System/PostMaster.pm line 101, <STDIN> line 57. [Sat Jul 30 00:10:16 2011][Error][Kernel::System::DB::new][181] expected authentication request from server, but received c [Sat Jul 30 00:10:16 2011][Error][/opt/otrs/bin/otrs.PostMaster.pl][136] Got no DBObject at /opt/otrs/Kernel/System/PostMaster.pm line 101, <STDIN> line 57. [Sat Jul 30 00:10:16 2011][Error][Kernel::System::DB::new][181] FATAL: out of memory Could you please point me to where I should look first? Thanks in advance ---------------------------------------------- Fabio Flores