While doing design for tinymail, we create a simple wiki page, throw some sketches to it. Yes, hand-drawn & scanned in (doesn’t matter). Then I usually make a nice UML class diagram out of that. This time I used ArgoUML (None of the existing tools really work the way they should. I’m not saying ArgoUML is the good stuff, it’s just the least bad crap software that is available for this. — It’s still crap –). People like you guys get to make comments on it (hence me blogging about it). Finally, somebody (most likely me) will implement it.
This is the design page for “sending E-mails”. The tinymail framework is, indeed, going to aid the E-mail application developer with sending messages in an asynchronous way by implementing most of this in an inheritable, re-implementable, enhanceable and most importantly optional little inner framework or predefined method. You can still develop and design your own idea around this. Maybe in case your device or application needs a different way of sending E-mails that doesn’t use outbox, sentbox and draft folders? I don’t know. I can’t know. It’ll be both enhanceable and optional.