Please help. Somehow the yahoo is blocking our company smtp probably because it is anonymous (simple smtp with no domain ID setup). I tried to use yahoo bizmail but it does not work. I think it needs to use different port and SSL enable. Can someone tell me where to change that and how? Thank you. --------------Here is the error message------------------------------------------------------------- ERROR: OTRS-CGI-10 Perl: 5.8.8 OS: MSWin32 Time: Wed Feb 27 10:44:48 2008 Message: SMTP authentication failed! Enable debug for more info! Traceback (1784): Module: Kernel::System::Email::SMTP::Send (v1.14) Line: 77 Module: Kernel::System::Email::Send (v1.31.2.1) Line: 498 Module: Kernel::System::Web::InterfaceCustomer::Run (v1.20.2.1) Line: 408 Module: ModPerl::ROOT::ModPerl::Registry::C_3a_OTRS_otrs_bin_cgi_2dbin_customer_2epl::handler (v) Line: 47 Module: (eval) (v1.37) Line: 203 Module: ModPerl::RegistryCooker::run (v1.37) Line: 203 Module: ModPerl::RegistryCooker::default_handler (v1.37) Line: 169 Module: ModPerl::Registry::handler (v1.99) Line: 30 --------------------------------------------------------------------------------------------------------------------------- -- Stephen Chao Microsoft Certified System Engineer