You can use IFTTT if you have a hashtag in the email subject line: https://ifttt.com/applets/97227578d-emails-with-tagged-subject-post-to-a-designated-slack-channel

send email to slack would be extra useful

A simple way to "send this conversation to Slack" would be awesome.

Totaly agree with this suggestion.

Why Asana and not Slack?

i need this feature too.

This would be so great! To be able to skip the whole piping through cloud services and just send it directly from airmail.
On desktop as well!

I would put my support behind this. A level of integration deeper than that offered by push services. The ability to right click an email and sent to a channel within slack would be a game changer for my company and how we operate.

AFAIK, this using IFFFT sends ALL of your emails to a Slack channel. It would be better in many cases to choose which emails I want to send to a specific Slack channel from my email.

You can do it through IFFFT, Zapier or Microsoft Flow. You hook directly your inbox to one these services which then will publish a message in your preferred slack channel.

Would be great to send emails to Slack.