Disabling SMTP with cpanel?

What command in an SSH prompt as the superuser do I use to disable the SMTP server? I don't wish to offer SMTP server as it puts me at risk of being listed by SPEWS or even being banned from my dedicated server center for spamming if a user spams.

EDIT: NM I'm stupid... just disable exim and it's set.

 

 

 

 

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