[otrs] Postmaster Mail Acc unable to POP

Kindly someone assist. Traceback: ERROR: OTRS-CGI-01 Perl: 5.8.8 OS: linux Time: Thu May 14 12:18:04 2009 Message: POP3: Can't connect to mail.kdn.co.ke Traceback (11098): Module: Kernel::System::MailAccount::POP3::Fetch (v1.4) Line: 75 Module: Kernel::System::MailAccount::MailAccountFetch (v1.5) Line: 369 Module: Kernel::Modules::AdminMailAccount::Run (v1.5) Line: 62 Module: Kernel::System::Web::InterfaceAgent::Run (v1.35) Line: 824 Module: /opt/otrs/bin/cgi-bin/index.pl (v1.87) Line: 47 -- K. K. Kamonye