Hi, guys, Thank you for your nice software. I've installed OTRS-2.0.4-01-win32.exe on Windows XP Professional Version. My problem is, everytime when I tried to send out an e-mail through SMTP, an authentification error occurs. I tried to setup the smtp parameters via the graphical administration frontend(Framework::Core::Sendmail) and via Kernel/Config.pm as well. However the error remains the same, and here is the details: ======================================= ERROR: OTRS-CGI-10 Perl: 5.8.6 OS: MSWin32 Time: Mon Feb 20 16:17:10 2006 Message: SMTP authentication failed! Enable debug for more info! Traceback (2160): Module: Kernel::System::Email::SMTP::Send (v1.9) Line: 76 Module: Kernel::System::Email::Send (v1.14) Line: 467 Module: Kernel::System::Ticket::Article::ArticleSend (v1.94) Line: 1321 Module: Kernel::Modules::AgentTicketCompose::SendEmail (v1.7) Line: 548 Module: Kernel::Modules::AgentTicketCompose::Run (v1.7) Line: 91 Module: Kernel::System::Web::InterfaceAgent::Run (v1.8) Line: 651 Module: ModPerl::ROOT::ModPerl::Registry::C_3a_OTRS_otrs_bin_cgi_2dbin_i ndex_2epl::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 ======================================= Here is the setting of my SendmailModule: # SendmailModule $Self->{"SendmailModule"}="Kernel::System::Email::SMTP"; $Self->{"SendmailModule::Host"}="<my Hostname>"; $Self->{"SendmailModule::Port"}="25"; $Self->{"SendmailModule::AuthUser"}="<my username>"; $Self->{"SendmailModule::AuthPassword"}="<my password>"; ======================================= Then I tried to use Ethereal to trace the SMTP protocol, and got the encoded username and password. After decoding the username and password using base64_decoder (http://www.splitbrain.org/encode.php), I found that the username is written twice with the password written once, something like, "command: AUTH PLAIN <my username><my username><my password>". I am sure all my setting is right and they work in Thunderbird in the same machine. So I think this might be a bug of OTRS. I've checked the bug list, but I couldn't find out the solution. Can you please check it out and reply to me, thank you. Hong Yang