[wp-hackers] Can we use PEAR?

[Bob]

While researching solutions to ticket #4616, I discovered a PEAR function 
that does exactly what we need.  Can we use it?  I don't see any references 
to PEAR in the current WordPress code.

http://trac.wordpress.org/ticket/4616
http://pear.php.net/manual/en/package.mail.mail-rfc822.parseaddresslist.php