SendMail (SMTP_AUTH) POP (POP_AUTH)

Hi, I'm having bad times configuring SMTP relay under 8.9.3, I need to relay e-mail to roaming users and it's being hard to enable relay to these users while keeping the system closed to spammers. I wonder if anybody have generated RPM's for Sendmail 8.10 with SMTP_AUTH support, or Qpop with POP_AUTH (POP before SMTP) support. Also, we suspect that a user is sending unauthorized msgs outside the company. Is there a way to send a copy of all the outgoing msgs from a user to the administrator's account (transparently)? I'm using SuSE Linux 6.4. Any help will be appreciated. []s, Bráulio Gergull