Support for both Gmail and Office 365 with their own proprietary APIs would be a knockout feature. Also I really appreciate the fact you don't use any intermediary servers, which has held me back from using some other macOS email clients.

I wonder how koa would fare.

Probably a bit slower than the express example as ES6 generators cannot be optimised the same way than callbacks can.

Probably the same if it uses EJS. That's really what is being benchmarked here, which is confusing, as EJS is one of the slower templating languages.

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!

How often would you imagine the emails get send? We were thinking of a daily use case (maybe excluding weekends)...

Thanks for the great feedback!