Can someone try this and tell me if you see it?

$ torsocks telnet tmg3kli67jlbcduh.onion 25

I can see it and send myself email using postfix.
My hidden service mail server won't be up all the time for now, but I'll put up a dedicated computer for it later.

Send mail through torsocks by modifying the master.cf.

Instructions:

Step 1.
In /usr/local/etc/tor/torrc
uncomment the lines

HiddenServiceDir /usr/local/var/lib/tor/
HiddenServicePort 25 127.0.0.1:25