[Mailman-Users] using sendmail

[Hervé MARTIN]

Hello,

I've read http://www.afp548.com/Articles/mail/python-mailman.html and 
find it very clear but i'm using default Mac OS X MTA (ie Sendmail)
So what is the equivalent for Sendmail of :
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As super-user, change to the /etc/postfix/ directory.
Using a command-line editor ( emacs ,vi ,etc. ), edit the main.cf file.
Find the alias_maps line.
Append a comma to the end of the line, followed by a space and the text 
hash:/Users/mailman/data/aliases
Note: if necessary, the hash:/Users/mailman/data/aliases text can 
appear on a line by itself, so long as the text is preceded by 
whitespace.
Execute the postfix reload command.
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Thanks

Hervé MARTIN