Automatically detect email provided by mobile phone from mobile phone

Refuse to automatically determine the domain of an email carrier SMS from a mobile number?

(Similar to how you can find the hostname from an IP address?)

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Technically, this seems possible given these guys are doing it. I don’t know how to do it. In addition, Verizon offers a service for checking its own network: Verizon Wireless Network Checker

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Just discovered that you can send free SMS messages through Google! So far, about a dozen countries have been tested (USA, Canada, Taiwan, Japan, Australia, China, France, Germany, Switzerland, Great Britain) - probably others.

This eliminates the need to use email verification to reduce costs on third-party SMS gateways.

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Source: https://habr.com/ru/post/1756344/


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