Hello,

It appears that you may have been given an incorrect email.

Correct format would be

phoneNumber@fax.voipo.com

phoneNumber = 10 digit destination phone number

Attach document(s) to the email will be faxed to the destinations.

Document types accepted are the same as online, i.e. TIFF, PDF, JPG, etc.

Also there is a known issue when sending from some MAC OSX clients.

Lastly - make sure you are sending from an authorized email address.

Please do let me know how this works out for you, thanks!