==== Configuring local SMTP on Win2K ====
1. Installing SMTP
Start -> Settings -> Control Panel -> Add Remove Programs
Install SMTP

2. Open local mail relaying
My Computer -> Right click "Manage"
Services and Applications -> Internet Information Services
Select "Default SMTP Server" and Right click "Properties"
under "Access" tab -> select "Relay restrictions" 
Click "Add" and type 127.0.0.1 as IP address for "Single comptuer" option
Click "ok"
Click "ok"
Click "apply"

If you don't run IIS, do the following to protect you server from
worms

3. Disable IIS (that was installed as a requirement for SMTP)
Start -> Programs -> Adminstrator tools -> Services
Select properties World Wide Web Publishing Service 
stop the service
set "Startup type" to "Disabled"

4. Tell IIS to use a non-standard port so it won't get hit if IIS is turned on by accident.
My Computer -> Right click "Manage"
1. (no-IIS) Move IIS to non-standard port to protect against nimda
Services and Applications -> Internet Information Services
Select "Default Web Site" and Right click "Properties"
Set TCP Port to 80000

==== Configuring PHP to use SMTP ====
5. To configure PHP to use it open C:\WINNT\PHP.INI 
find and edit the following settings: 

[mail function]
; For Win32 only.
SMTP = "127.0.0.1"

; For Win32 only.
sendmail_from = "php@hostname.com"

replace php@hostname.com with the username you want emails to 
orginate from.

6. Restart apache for the changes to the PHP.ini file to take affect.