TODO
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- Improve documentation
- Add HTML mail support
- Multi-user/multi-session support (Is it really necessary for mail sending?)
- Test script in various mail clients (I tested it only in Kmail and Mutt)
- Proxy support
- Fine tuning of account options (signature attach, save message in sent
folder, logout after sending, etc.) through configuration options
- Send error messages as mail to root or postmaster (like Postfix does)
