How to Increase "Undo Send" Time in Gmail
Even with excellent mailing habits, such as double-checking who you are sending to, it's normal to occasionally forget to link a file or notice you misspelled someone's name after hitting “Send.”
Fortunately, Gmail has an "Undo Send" feature that saves you from mishaps by allowing you to retract your emails within a short time frame after hitting the send button.
But, the default undo time in Gmail may not be enough for some users. So, if you want to increase the undo time in Gmail, follow the step-by-step process below.