question

Keri McGovern avatar image
Keri McGovern asked Abdullah Nafis commented

Unable to send faxes

Hello, we are unable to send faxes. We get a bounceback email anytime we try to send one.

Below is the message we get.


Message not delivered
Your message could not be delivered to one or more recipients. The details are attached below.

For further assistance, please contact your IT Administrator.
Message details
Failure reason: <2248135109@rcfax.com>: host mx2.emailsrvr.com[146.20.161.2] said: 451 4.7.1 Received too many messages from a new or untrusted IP: 18.216.13.113

fax
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Abdullah Nafis avatar image Abdullah Nafis commented ·

I am unbale to check FAX API from postman.

I am getting 403 forbidden error which making callout with postman

url: https://platform.devtest.ringcentral.com/restapi/v1.0/account/~/extension/~/fax

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1 Answer

Anirban avatar image
Anirban answered

You can contact RingCentral support and open a case: https://support.ringcentral.com/contact-support.html

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Developer sandbox tools

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:

  • On MacOS: press "fn + command + f2" keys
  • On Windows: press "Ctrl + F2" keys