Perhaps I've just been lucky, but I've used a few novelty TLDs for e-mail, and never ran into any issues. My current go-to addresses are myfirstname@mylastname.

Perhaps I've just been lucky, but I've used a few novelty TLDs for e-mail, and never ran into any issues. My current go-to addresses are myfirstname@mylastname.email, for more professional settings, and <one letter>@<two letters>.<two letters> for quick throw-aways.