Procedure

1. Log on to the Windows server.
2. Open Server Manager.
3. Go to Features → Add Features.
4. Mark SMTP Server.
   The Add role services and features required for SMTP Server window appears.
5. Click Add Required Role Services.
6. Click Next.
7. Click Next again.
8. Click Install.
   The Web Server IIS and SMTP Server installs.
9. Click Close.
10. Go to Start → Administrative Tools → Internet Information Services (IIS) 6.0 Manager.
    IIS 6.0 Manager opens.
11. Expand ServerName (local device).
12. Right-click [SMTP Virtual Server #1] and click Properties.

    Note Mark Enable logging for future troubleshooting.

13. Go to Access → Connection... and select Only the list below, and then click Add....
14. In the IP address field, specify 127.0.0.1, then click OK.

    Note Repeat to specify all IP addresses on local server

15. Click OK.
16. Go to Delivery → Advanced... and specify the Masquerade domain in the following format: psproxy.<domain>.<com/org>.
17. Click OK twice to close the SMTP Virtual Server #1 Properties window.
18. Go to Enterprise Policies → PolicyServer → PDA → Email.
19. Open SMTP ServerName, specify 127.0.0.1, then click Apply.