Tests on different ports

Hi, I'm trying to run two SMTP tests on one server. My bb-hosts file looks like:

10.10.10.1 mail.domain.com # SMTP SMTP:8025

I have two ports that accept SMTP on that server, 25 & 8025. The problem is, if 8025 is down and 25 is up, I still get green from the test. What am I doing wrong?

Thanks, Michael