> the GUI? See http://lists.otrs.org/pipermail/otrs/2006-August/
> 012068.html for the original post that said escaping the @-sign  
> worked. Also note that that archived mail has "@" replaced by "_at_",  
> the original mail has just "@".

I have read the article. Actually, in my Config.pm is NO entry for sendmail, since I had to install OTRS new and all my configurations got lost... I have added this now. Is this OK? (sendmail path is correct!)

And what about the pop3 settings in the GUI? Delete them?

    # SendmailModule
    # (Where is sendmail located and some options.
    # See 'man sendmail' for details. Or use the SMTP backend.)
    $Self->{'SendmailModule'} = 'Kernel::System::Email::Sendmail';
    $Self->{'SendmailModule::CMD'} = '/usr/sbin/sendmail -i -f ';
    #
    $Self->{'SendmailModule'} = 'Kernel::System::Email::SMTP';   
    $Self->{'SendmailModule::Host'} = 'sardiniatravel.net';    
    $Self->{'SendmailModule::Port'} = '25';
    $Self->{'SendmailModule::AuthUser'} = 'sardiniatravel\@sardiniatravel.net';
    $Self->{'SendmailModule::AuthPassword'} = ' ... ';

Thanks,

marc