Signatures usually contain all sort of info which are not words (e.g.: URLs, phone numbers or location addresses) and therefore trigger the spell checker highlighting feature, distracting from real spell-checking problems.

Would be nice that spell-checking were limited to body of mail being written and don't bother to check the text after the signature separator of the account.

If not unconditionally (somebody may be writting their signatures by hand and wants spell-checing on them) at least some option to allow this (hidden or not).

thanks in advance,