I prefer calls and texts for initial queries about my availability (really)! Just remember to introduce yourself on text if there's a chance I don't have your number saved to my contacts!
If you must email, of course hit me up at: firstname.lastname@example.org
I understand in 2018 that not everyone is "a phone person". Email just isn't the fastest way to catch my reply - it can get backed up and forgotten about once it's opened if I'm on the go propping or on set, so apologies in advance if that happens. (You should have called.)