Our New Slack App Integration


Mailbird’s new Slack app integration brings chat to your inbox

2.3 Million, that’s how many people use slack every day. That’s why we are super excited to announce the release of our Slack integration for all Mailbird users.

slack app integration
The new Slack app integration sidebar in Mailbird

Activating the Slack app in Mailbird is easy.

  • Click the “…” menu at the bottom of the Mailbird sidebar.
  • Next, click the slider in the Slack widget to turn it “on”.
  • You will see the Slack icon show up in the bottom of your sidebar along with any other apps you’ve activated.
  • Click it, and you will find instructions on how to sign in to your Slack account.

slack app widgetUsing the Slack app sidebar

To activate the Slack sidebar in your Mailbird client:

  • Open any inbox by clicking on the account icon in the sidebar.
  • If your sidebar is not expanded already, click the “<” symbol at the top right of the Mailbird client:
  • expand app sidebar
  • To open Slack in your sidebar, hover over the “…” symbol to see all the activated apps with sidebars:
  • slack app selection
  • Click the Slack symbol slack app icon and you are all set.

Why we chose to add the Slack app to Mailbird

Slack is a great tool for teams. It allows channel members to communicate more quickly, share documents, and has dozens of amazing bots to automate a score of things that email just can’t.

The Mailbird team has been using slack for awhile now, and we realized two important things in the process:

  • Although it can cut down on email between team members, Slack cannot completely replace it.
  • Using Slack required yet another app or window that we had to juggle.

For these reasons, it made perfect sense to bring this team communication app into the Mailbird interface. Now, we can have both tools open on the same platform!

Are you a Slack app user?

We’d love to hear your experience with the new app integration. We are continuing to work on improving it, but we’d appreciate any feedback you have on this awesome new feature.


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  • Fredrik Nilsson

    Looking good!
    However, I don’t get any notification when I get a new messages in the mailbird/slack app. Am I the only one with this problem? Any solution?

    • Adarsh V

      No you are not. Though this is a cool integration, I’m sorry to say it is useless without notifications. Hope they are working with the Slack team to bring notifications. Then it would be an absolute powerhouse.

    • Same here ;/ for now i must use stand-alone slack app till they fix it.

    • Paul Adams

      A year later and still no notifications?

  • A Real Mail User

    The way you guys integrate stuff is an insult to the word integrate.
    Why don’t you just say “We’re showing it within an iframe and claiming we do integrate it since our current software is not capable of anything at all.”

    • Yeah, this has been a major gripe with me since they launched integrations and still hasn’t changed.

      • Christin Baumgarten

        Hey Nathaniel, thanks for your feedback. Let us know more details on what integrations you are especially referring to. Thanks:-)

        • All integrations are just embedded browsers rather than native implementations.

  • David Herrera

    I noticed this post was in May, we are now in July almost August. Has Slack notifications been figured out yet?

    • Leonardo Ariadi Santoso

      Hi Guys, slack app notifications is currently not being worked on by our developers. We are focusing on bigger features. I can’t say anything specific yet but you can expect something in the ball park of exchange support, multiplatform, and a native calendar for our future updates.

  • This sucks

    Terrible. No notification support whatsoever. What’s the use of chat if you don’t know people are sending messages?