We have tried reading the documentation, and setting the ip address and the public ip or fqdn for our exchange server to send an email from OTRS When a new ticket is generated. Nothing seems to work, can anyone think of how to approach this problem.? ERROR: OTRS-CGI-10 Perl: 5.8.6 OS: MSWin32 Time: Wed Jun 28 11:25:56 2006 Message: Can't connect to 192.168.112.2: Unknown error! Traceback (1896): Module: Kernel::System::Email::SMTP::Send (v1.9) Line: 121 Module: Kernel::System::Email::Send (v1.14) Line: 467 Module: Kernel::Modules::AdminEmail::Run (v1.23) Line: 108 Module: Kernel::System::Web::InterfaceAgent::Run (v1.8) Line: 651 Module: ModPerl::ROOT::ModPerl::Registry::C_3a_OTRS_otrs_bin_cgi_2dbin_index_2ep l::handler (v) Line: 47 Module: (eval) (v1.80) Line: 203 Module: ModPerl::RegistryCooker::run (v1.80) Line: 203 Module: ModPerl::RegistryCooker::default_handler (v1.80) Line: 169 Module: ModPerl::Registry::handler (v1.99) Line: 30 Thanks Tom