Can Chat Over IMAP Challenge WhatsApp and Slack?

Mar 18, 2019
taping up a female boxer's hands before a fight

The headline in the local German press read, "The German Attack on WhatsApp.” German entrepreneur Rafael Laguna is looking to counter the dominance of Facebook's messaging services WhatsApp and Facebook Messenger. But Facebook isn't the only one on Laguna‘s radar. He could even be looking to cut into the popularity of business solutions like Slack and Microsoft Teams.

It sounds like an ambitious plan, especially when considering WhatsApp's continued dominance in the private market. Alternatives like open source-based Signal and Swiss alternative Threema are still far from the user numbers of the Zuckerberg messengers. Ten years after release, and long after the founders' visions went down the drain, WhatsApp rules the market.

Meanwhile in the business sector, Microsoft is going after Slack, which just announced it has more than 8 million active users. Other vendors, such as IBM with Watson Workspace, either gave up or sold their solutions, like Atlassian. 

True, not all companies have given up: Threema Work just became the official messenger for the Swiss government and open source alternative Mattermost chat service has brought on some big names as customers, due to its highly customizable and modifiable solution.

Expanding IMAP to Handle Chat

So why does Rafael Laguna think he has a chance to take on this kind of competition? 

Laguna's plan is to drill into the internet message access protocol (IMAP) in such a way that it could also be used to handle chats. Laguna is CEO of the company Open-Xchange, whose software "Dovecot" is used by many large providers, including German Telekom and others. If an email provider uses IMAP as protocol, there's a good chance Dovecot is the basis. The company estimates roughly three quarters of all IMAP servers run on Dovecot, worldwide.

Laguna wants to add "Chat Over IMAP" to this protocol in such a way that chat services such as WhatsApp, but also business solutions like Slack could be operated via it. It's a high goal: The solution should be open source and wouldn't involve reviewing user data. Above all, the solution could run with all providers who participated, meaning interoperability between solutions based on Chat over IMAP. Furthermore, this means the data would not be collected by just one provider.

Despite all concerns and the competitive market, Laguna has been quoted as saying, "We'll just do it now." While the plan seems farfetched, it has a higher chance of success if only because IMAP is a de-facto standard for exchanging email in the market going beyond the SMTP protocol. Laguna is betting on that, but he will definitely need some big players or even the German government — look at the Threema example in Switzerland — committing to the protocol to gain traction.

Does Chat Over IMAP Stand a Chance?

I'm on the fence. On the one hand I have a lot of sympathy for an open source-based approach using a standard protocol. Will we finally live outside the email inbox, an approach my highly esteemed former colleague Luis Suarez has been a proponent of for years? How many articles have been written about a life with less email and about the tools that are better suited for collaborating? Just recently Laurence Hart covered the topic again here on CMSWire.


About the author

Rafael Laguna

Rafael Laguna

Co-founder and former CEO of Open-Xchange


Related Articles

We can’t rely on venture capital to fuel moonshot innovation

For investors, fighting climate change or disease will not have the immediate link to profitability that let’s say,...

Rafael Laguna 09/1/19

PRIVACY INSIGHT: Shoot the Messenger

In March, Mark Zuckerberg published a blog post titled “A Privacy-Focused Vision for Social Networking”, outlining...

Rafael Laguna 04/3/19

Dovecot IMAP Server’s market share has grown again

The results of this year’s Open Email Survey (2020) are now in. Even in a year of IT consolidation the Open-Xchange Dovecot...

Timo Sirainen 03/3/20


Vittorio Bertola 07/2/19