Η mode "undoing" a message via Gmail that existed in the web versions is now also available in the version for Android.
This feature allows you to recall an email you just sent. The revocation 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 usually such mistakes do not occur when working on a large keyboard, like a desktop for example, although on the small surface of one mobile phone it is very easy to press the wrong button, and send a half-finished email.
As of version 8.7 of Gmail for Android, you have the right undo and on your mobile phone. After sending an email, a black bar will appear at the bottom of the screen with the option “UNDO”, which unlike the original desktop feature, is enabled by default.
Just press it within 5 seconds and your wrong message will never be delivered to the recipient.