I know this is an old question, but this thread had the best set of answers if found. I modified Marcos's Answer above to also close the blank tab that is created if the client has an external mail handler
reference answer
JS (w\ jQuery for event handlers)
$(document).on('click', 'a[href^=mailto]', function(e) {
var checkClose, checkLoaded, event, href, i, len, loadEvents, results, t, wndw;
e.preventDefault();
href = this.href;
wndw = window.open(href, 'mail');
checkClose = function() {
console.log('checkClose');
try {
wndw.location.href;
return wndw.close();
} catch (error) {
return console.log('webmail');
}
};
t = setTimeout(checkClose, 5000);
try {
checkLoaded = function() {
console.log('loaded');
clearTimeout(t);
return t = setTimeout(checkClose, 2000);
};
wndw.onload = checkLoaded;
loadEvents = ["DomContentLoaded", "load", "beforeunload", "unload"];
results = [];
for (i = 0, len = loadEvents.length; i < len; i++) {
event = loadEvents[i];
results.push(wndw.addEventListener(event, checkLoaded));
}
return results;
} catch (error) {
return checkLoaded();
}
});
jsfiddle