This module is great - definitely my favourite to send emails! However, when is the dev release being fully released? It;s annoying to have to install the dev release manually on our servers to get around the SMTP authentication 'bug'.
UPDATE 2008-12-03. The latest version has SMTP auth in it so no more painful dev release installs. 5 stars!
MIME-Lite works as expected -- it's great and I've been using it for years.
My beef is that it's bloated. Years ago, it truly was "LITE". That's why I used it. These days, it has far too many dependencies that aren't included in standard Perl distributions. Thus, a CPAN install of the module is almost laughable with all the extra modules that are needed. It all works in the end, but it just seems much more inefficient than it should be.
In my opinion, any package with "LITE" in the name should not have any dependencies that aren't included with a standard Perl distribution.
MIME::Lite has been my standard e-mail generation solution for years. I use it for tasks from simple to complex. Today I noticed another small but important benefit it offers: It strips headers of newline characters, preventing a "header injection attack" when e-mails are generated from values gathered from untrusted sources.