Seeing as Thork has reservations about revealing his mobile phone number to the rest of the Zetetic Council, I suggested texting to an email account. Unfortunately, this was misunderstood as sending an email via text. This is not what I had in mind. Rather, I was suggesting that an email account be added to the messaging app. This means that, rather than using your phone number, the messaging app uses an email address. For example, I can send and receive texts on my iphone by my cell number, Apple ID, or two other non-Apple ID email addresses.
How to add multiple email address to iMessage on iPhone and iPad
1 Launch the Settings app on your iPhone or iPad.
2 Scroll down and tap on Messages.
3 Now tap on Send & Receive.
4 Select Add Another Email... underneath the You can be reached by iMessage at: section.
5 Type in the email you'd like to add and hit return on your keyboard.
It seems that Android and Windows phones should have similar capabilities.