Chrome Web Extension that allows you to revoke access to sent
emails whenever you like!!
You may have encountered this situation many times that you
have regretted sending an email hastily and desperately wished you could take
it back? Or maybe you’re worried about sending confidential information over
email – especially after witnessing many large-scale hacks and the damage they
can cause.
A new self-destructing email service called Dmail aims to eliminate
these concerns with this tool that allows user to manage the mails sent over Gmail.
Dmail is a new Google Chrome Browser Extension that gives people power to how
long the recipient can view the mail sent by you. You can even set a
self-destructing timer that automatically makes an email inaccessible after that
certain time.
The product was developed by the people who made the social
bookmarking service Delicious. The most valuable thing about Dmail is that it
works even if the recipient hasn’t installed this specific tool on the system. This
is because the service doesn’t actually delete the mail from the user’s inbox
rather encrypts and decrypts on demand. 
If the Dmail received by the recipient doesn’t have the
extension installed, are shown a “View Message” button that opens the email in
new tab while extension installed users can see the message directly within Gmail.
Once a Dmail is initiated by the sender the recipients are informed of the same
by the message “This message has been destroyed and is no longer available.” 
Dmail’s developer had explained to TechCrunch that whenever
user sends a message with the service, it’s encrypted locally on their machine with
a standard 256-bit algorithm. The recipient of the mail is sent both the
location of data store and the key to view the decrypted form of the message. They
also have plans to make the Dmail a freemium service.
How Does Dmail Work,
For using Dmail you required to install Chrome extension for Dmail. After installation of Chrome extension, open Gmail inside Chrome browser and you will found that Dmail now integrated with Gmail, to send a new email with dmail enabled you to have to encrypt the emails. Auto expire time can be set as 1 hour, 1 day or 1 week.
Eventually the team want to upscale the use of the tool to
let users set self-destructing timers on other documents too.
Google itself seems to have an alarming understanding of the
value to revoke an email as well and recently made its Undo feature, which
allows the sender to revoke a mail up-to 30 seconds after its sent across
Gmail.
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