I'm familiar with that notice. I'm pretty sure that RJBS means that other alternatives are "better" and he is not really interested in spending time on bug reports etc from something he feels is sub-optimal. Fair enough, buyer beware, but I am happy with it.

I have not experienced any problems with MIME::Lite, but then I use it for trivial e-mailing (no attachments, ASCII-only subject line, etc). In particular I continue using it because it is installed on most shared hosting servers, and since MIME::Lite::TT is Pure Perl, a user can install that in his/her home directory and run it with no compiler needed. For distributing programs to customers this combo is great, since they can be handed a Template template, and a Config::Tiny config file, with which they can completely control the email messaging, while keeping their fingers out of the code.