Below are the tips on checking the causes of fax failures. It is important to follow the guidelines to avoid these errors:Email to Fax
When trying to send faxes through email, make sure that you add email addresses permitted to send faxes. You can only send faxes from your trusted addresses.
The file size of the document should be less than 20 MB.
Send the fax using this format @rcfax.com.
Ensure that the document is a supported file attachments for faxes.
When documents go beyond the printable area, it may be best to resize them using your PDF viewer at around 90-95%.
The filename of your fax attachments should not include ampersands (e.g. &) or other special characters for you to able to send it.
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