Userscripts.org

The following is an archive of comments made before threaded discussions was implemented (November 16th, 2008)

sorry for misformatted

var emailIndex = 1;
//-----------------------------------------------------------
// Check for certain email addresses
// this can be changed
// currently changes from address if emails are sent to a .edu email address
//-----------------------------------------------------------
var email_regex = "youku\.com";

document.addEventListener('click',function(event) {
 	if (event.target.tagName == 'BUTTON' && event.target.innerHTML == '<b>Send</b>') {
		var to = document.getElementsByName('to')[0].value;
		var cc = document.getElementsByName('cc')[0].value;
		var bcc = document.getElementsByName('bcc')[0].value;
		var from = document.getElementsByName('from')[0].value;
    //console.log('GMail from'+from+' to'+to);
		var myTest=new RegExp(email_regex);
		if(to.match(myTest) || cc.match(myTest) || bcc.match(myTest)){
			var frombox = document.getElementsByName('from')[0]
			frombox.selectedIndex = emailIndex;
 		}		
	}
}, true);

a *working* version for GMail 2.0

//-----------------------------------------------------------
// set this to index of email address you want to use
// index of 1 would select the second email in the drop down list
// index of 2 would select the third email in the drop down list and so on,
//-----------------------------------------------------------
var emailIndex = 1;
//-----------------------------------------------------------
// Check for certain email addresses
// this can be changed
// currently changes from address if emails are sent to a .edu email address
//-----------------------------------------------------------
var email_regex = "company\.com";

This is very useful! I've made two modifications which I hope you'll find useful:

1. Now there's an array of address patterns

2. There's an optional user confirmation before changing the address.

Here's the code:

// ==UserScript==
// @name           Gmail from address selector
// @namespace      test123
// @description    Selects the from address of same domain your sending to
// @include        http*://mail.google.tld/mail/*
// ==/UserScript==



//-----------------------------------------------------------
// Check for certain email addresses
// this can be changed
// currently changes from address if emails are sent to a .edu email address
// You can add as many checks as you like by copying the line marked "copy this"
// 
// The first argument of the array is the regular expression matching email
// addresses you're sending to (or cc, or bcc).
// For example, ".*(mycompany.com).*" matches any address sent to mycompany.com
//
//
// The second argument of the array is the index of the email you want to use
// as the sender.
//
// set this to index of email address you want to use
// index of 1 would select the second email in the drop down list
// index of 2 would select the third email in the drop down list and so on,
//-----------------------------------------------------------


var emailMatchers = new Array (
	new Array(".*(.edu).*", 1),   /* <--><emailmatchers>