How to make Mail::factory PHP5 compliant?

[FeraTechInc]

I have PHP5 installed and my Mail::factory is erroring out saying it can't find the "Mail" class.

How can I make the script PHP5 compliant? I had to install PHP4 just to make it work. Any help would be greatly appreciated.

[Ben]

I guess you mean the Pear-Package Mail (->http://pear.php.net/manual/en/package.mail.mail.php)

You should just install it on the console with
pear install Mail

[FeraTechInc]

So I'm confused, why with PHP4 this is automatically included and not with PHP5?

BTW, my setup was the Perfect Setup /w ISPConfig on Ubuntu Edgy.