Well, you can be right in some parts, but I had a demand for a long time for a tool that have everything in one package.
Also, to implement Mail::SendEasy, I haven't implemented a full SMTP handler, or a full MIME handler, since I don't wan't to handle all the resources that this definitions have, just what is needed to send an e-mail with TXT & HTML messages and attachments, through a SMTP server that ask for authentication (what is common in this days). One thing that you can see is that Mail::SendEasy, yes it handle a lot of parts, but it code is simple and small.
You said: Tools should be simple and single purpose.
Mail::SendEasy is simple, and for the user side, it's for a single pourpose, send an e-mail. The final user don't want to know that exists SMTP, MIME, or any other technology, since an e-mail system is all of this together.
Tools should be easily usable independently.
Well, this is the main pourpose to Mail::SendEasy be created. What already exist there wasn't "easily usable" as I need for my users. Actaully before they need to install a lot of things and use a lot of modules together to can have what they want.
Mail::SendEasy is soo simple, that this is the only thing that you need to know to start using it:
Code shouldnt be duplicated unnecessarily.
Well, we can't make everything perfect (first thing that we learn in the life), for one side we win, for the other we lose, and what really matters is the final product.
You complain that maintain Mail::SendEasy is hard and my code wasn't tested as Net::SMTP and MIME::Lite. Well, if we know what we are doing, this point of view is just an excuse to not do things. First, I have based my code in what is already there, what was already tested. Also I have 10 years of experience in Perl doing things much more complex than just a simple mail tool that I build in 2 hours, since I was tired to spend 1h installing modules and checking the behavior of the last version of each module, each time that a system need to send e-mails. But I really respect your opinion, since is your own opinion, build by your self, and in this days is hard to find people that care about that. in this days people just want to use and say what the others says.
From my point of view, use a lot of different modules to do one thing is always hard, one beacuse the user need to learn 3, or more tools, before start doing anything (like in Java), and Perl is to be pratical. Also all of us know that a lot of dependencies, make a module to have a high probity to not work in the future (history show this easy), or to have bugs, since each dependencie cover an area bigger than what your main pourpose need.
Well, Mail::SendEasy is there, and I know that it's in use in Europe by a big ISP to send e-mails. Also I know that it's in use by a FanClub to send more than 300.000 e-mails in one shoot. Soo, it's working for big demand too.
Graciliano M. P.