Hey,

I also think it is a really good idea.

I'd personally like if the administrator could set the default rendering engine for example, if I could set Markdown because my team is familiar with it.

You might want to also have a look at Slack and integrating StandUpMail with Slack.

http://www.theverge.com/2014/8/12/5991005/slack-is-killing-e...

Also you'll probably need a feature where the administrator could set on what days the emails are sent.

GitHub integration would also be a bonus. For example, merged pull requests, etc.

Anything like that would be awesome!