AOL 4.0 had a similar function [1]. [1] https://web.archive.org/web/20130115034301/http://americanshelflife.wordpress.com/2008/05/26/ode-to-aols-unsend-functio

AOL 4.0 had a similar function [1]. [1] https://web.archive.org/web/20130115034301/http://americanshelflife.wordpress.com/2008/05/26/ode-to-aols-unsend-function/ https://web.archive.org/web/20130115034301/http://americansh...