problems with sendmail in FC6

[simon butler]

hi all, i'm struggling to get sendmail to accept remote smtp connections in 
FC6. i have the following lines in my sendmail.mc file:

dnl DAEMON_OPTIONS(`Port=smtp, Name=MTA, Modifier=A')dnl
dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl

but still get the "can't connect to smtp server" error.

is there something else i need to do?

tia.

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