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Dmail Chrome Extension lets you send encrypted and self-destructing Gmail messages

Dmail Chrome Extension lets you send encrypted and self-destructing Gmail messages

by AshwinJuly 27, 2015

About a month ago, Google rolled out a new feature to Gmail, and by new I mean one that was in beta for just six years.

The feature is called Undo Send. And as the name suggests, the feature lets you pull back an email which you have sent.

But there is a small catch, you have just 30 seconds to react after sending the email. It may not be ample time for your ninja reflexes, if you spot a major typo in your email, after lets say 25 seconds. Worse still, what if you sent the message to a similar named but wrong recipient?

Enter Dmail, to solve these issues. No, it is not a competing email service, and neither is it a new one from Google. It is a third party service, and works only in Google Chrome. Because it is a Chrome extension.

Dmail lets you send messages using Gmail’s compose window, but the contents of the message are not stored in Google’s servers. Instead it is encrypted and stored in Dmail’s server. The recipient of the email, will merely get a key and a link, with the following message:

This secure message was sent using Dmail. To view this message, simply click the button below.”

Clicking on the link and will allow the recipient to go to the landing page on Dmail, where they can read the message.

The recipient does not need to have Dmail installed in Chrome. In fact the recipient can use any browser to view the mail. Now, coming to the self-destructing messages, you can choose between three options to decide if the emails should be destroyed automatically. You can set the option to destroy the message in an hour, a day, a week, or never. Regardless of what option you choose, you can revoke access to any message sent with Dmail at any time, even if you selected never,

This will destroy the message, and nobody will be able to read the message, not even the recipient.

This is what Eric Kuhn, the team lead behind Dmail told Techcrunch:

“An encrypted copy of that email is sent to a datastore controlled by Dmail. The recipient of the email is sent both the location of that datastore, as well as a key to view the decrypted message. “Neither Gmail nor Dmail servers ever receive both the decryption key and encrypted message. Only the recipient and sender can read the email legibly.”

Dmail is developed by Delicious, the social bookmarking service. You can download the Dmail Chrome Extension page from the official website. It is still in beta, which is why it is not available on the Chrome web-store. The beta access is currently free and does not require any account to use the service.

However, Dmail plans to make the service freemium (free-to-use) with paid features for power users and businesses, and may even extend the “self-destructing” feature to documents.

Unfortunately there is no clue, if Dmail will ever come to Mozilla Firefox and other browsers. Softpedia reports that Dmail for iOS will be released sometime in mid-August, which will later be followed by an app for Android.