According to https://developers.google.com/apps-script/class_gmailapp#sendEmail, the function
function myFunction() {
GmailApp.sendEmail("address@domain.com", "Foo", "Hello World!", {name:"Fred Freddington"});
}
should send an email to address@domain.com with the subject Foo, message body Hello World!, and should appear to be from Fred Freddington. Indeed, this is what used to happen, but now it just says it’s from the Gmail account the script is associated with. Does anyone know how to get around this and/or why Google have changed this but not updated their documentation?
This is due to Issue 2004. Please star the issue to be notified of updates to the issue