After years of testing, "Undo Send" became an opt-in Gmail feature in 2015; it's now turned on by default and can't be deactivated. Even if it's built-in, you'll still need to know what you're looking ...
If you have sensitive information to send over email, you might want to use Gmail's Confidential Mode to restrict the ...
कुछ परिणाम छुपे हुए हैं क्योंकि हो सकता है वे आपके लिए पहुँच योग्य न हों.
पहुँच से बाहर के परिणामों को दिखाएँ