Function "appeal sending" a message through Gmail that existed in the web versions is now available in the Android version as well.
This function allows you to recall an email message post officewhat you just sent. The recall time you have at your disposal is a few seconds, but enough to press the "Undo" button and the accidental email is not delivered to its destination.
Although such errors usually do not occur when working on a large keyboard, such as a desktop for example, nevertheless on the small surface of a mobile phone it is very easy to press the wrong button, and send a half-finished email.
Starting with version 8.7 of Gmail for Android, you also have the right to cancel on your mobile phone. After sending an email, a black bar will appear at the bottom of it screens with the “UNDO” option, which unlike the original desktop mode, is enabled by default.
Just press it within 5 seconds and your wrong message will never be delivered to the recipient.