any api in Ringcentral there which can be used to send emails along with text messages using smtp protocols
I don't think there is some thing this kind of API that uses smtp for email and supporting email features
Using the RingCentral Phone for Desktop, you can dial or receive test calls, send and receive test SMS or Fax messages in your sandbox environment.
Download RingCentral Phone for Desktop:
Tip: switch to the "sandbox mode" before logging in the app:
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