- ID SMTP server (may or may not pull the correct SMTP)
- Open CMD command line
- type nslookup
- set type=mx
- domain.com
- Record the results
- quit
- Test with Telnet
- telnet <mail.domain.com> 25
- ehlo mail.mydomain.com (you can replace ehlo with helo if your not using an exchange server)
- mail from: test@domain.com
- rcpt to: user@domain.com
- data
- Subject: This is a test
- type your test message
- . (end with a period)
- quit