In July, Microsoft launched Send, a new short-form and lightweight email app. It was only available for Office 365 business and education customers with iPhones, though the company said it would eventually bring the app to Android and Windows Phone users. Microsoft today delivered on half of that promise: You can download Send Beta from Google Play.

There are some limitations, though. This is a preview version, and it only works on phones with Android 4.2 and up. Microsoft says the app will stay in preview status “while we bring it up to speed with its iPhone counterpart.”

Furthermore, Send still only supports Office 365 business and education accounts. You can email whoever you want, but having an iPhone or Android phone isn’t enough to use the app.

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Microsoft has added a few features since launch. Users now have the ability to delete conversations, add people to conversations, send direct messages to people from a group conversation, share your location, make a phone call, and most importantly, post GIFs.

Send — “the app that feels like texting and works like email” — was initially only available in the U.S. and Canada. As of today, Microsoft has also expanded support, for both iPhone and Android, to the U.K., Brazil, and Denmark.

Microsoft did not, however, share when it plans to make the app broadly available. Furthermore, Windows Phone users also don’t have a date to look forward to — the company says it is still “working on” it.

Microsoft says it has seen a lot of positive feedback for Send:

Send has been welcomed by universities, organizations with office workers and organizations with a mobile workforce. We’ve heard the app is improving communication flow around offices, campuses and other workplaces, because it’s based on a universal platform that everyone has access to — email. You told us that Send is a much-needed alternative to the consumer chat applications that can find their way into an organization.

And yet the company is very cautiously expanding availability. That might be wise, as Send is of course not the first app to try to improve email, and it won’t be the last.