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Fax by Email results to 'Sent' - Fax by API results to 'Unknown' everytime using same PDF attachment
Tags: fax, rest api
Feb 26, 2020 at 1:50pm   •   1 replies  •  0 likes
Greenleaf Medical Clinic

My app has been working for over a year and now every outgoing fax is returning a status of "Unknown" and then being automatically retried 5 minutes / 10 minutes later with a result of "Unknown". Using the the fax by email functionality to the same test number and using the same test attachment, it always works with a result of "Sent".

The app uses the PHP SDK (

I can't find a decent log to help troubleshoot this issue. Anyone have any clues where to look? All responses from RC show the fax has a status of 'Queue'. Then progresses to 'Unknown' without any error messages. I have tried multiple fax numbers as well -- all with the same result.

1 Answer
answered on Feb 26, 2020 at 2:09pm  

Can you open a support ticket? Please include your question and account id (or main company number) so the developer support team can have a deep investigation on your fax log.


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