Comment 117 for bug 357864

UX-error-prevention / Pref

1) General interest and usefulness of this feature seem to have declinied: Last duplicate of this bug filed 2006, 8 years ago. Only 4 supportive comments since 2005. As we speak, many common email-providers do no longer allow defining random "From" values, to prevent spam/spoof.

2) Otoh, adding this feature by default has a big error potential, as editing sender can prevent users from successfully sending their message (which they will only notice after sending). Which makes this a case of UX-error-prevention.

3) I conclude from 1) and 2) that this feature should be preffed-off by default, and I suspect hidden pref might suffice for the type of advanced users who have their own domain to tweak senders at random.