Changing 'From' field when using sendmail

Whenever I send stuff out on my mailing list (which I use PHPList for...) the from field always looks like this:

From: httpd (httpd@www.mysite.com) ....

Do I have to edit sendmail.cf to change this or what? Is it something I have to live with if sendmail is called through the web interface of the mailing list software??

Thanks.

 

 

 

 

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