Yes, to the phone numbers on your Email2Phone account. Send or forward the email to your Email2Phone address and each phone gets it as a text message, a phone call that reads it aloud, or both, as that number is set. It is not a way to text a stranger’s number: the phones are the ones you add to the account. To text someone who isn’t on your account, see how to send an email as a text message.
The carrier email-to-SMS addresses that used to do this for free, such as number@vtext.com, are closing one by one. The current status of each carrier’s address, and how to test one, is on email to SMS.