Receive texts via email gateway
When you use Android Messages as your default messaging app, you can get emails delivered as texts to your phone. Your email-to-text address is your 10 digit Fi number at msg.fi.google.com. For example:
You can receive text messages as well as attachments, including images, video, and audio files up to 8MB in size.
Send emails via text message
You can send a text message to an email address with Android Messages. Simply enter your recipient's email address instead of their phone number when you're sending a message.
You can include text and a subject (long press the send button) when you send your message. You can send text messages as well as attachments, including images, video, and audio files up to 8MB in size.
Your recipient will get an email from @msg.fi.google.com with your 10-digit Fi phone number. For example:
Compatibility with Hangouts
Keep in mind that these messages bypass the data-only Hangouts integration with Fi. Even if you're opted into the Hangouts integration, the messages will be delivered only to your phone over SMS.