Sending (Outbound) Fax Limitations

Sending (Outbound) Fax Limitations

Limitations of The Send Fax (Outbound) API Call

  • Limited to 1 PDF file per request
    (The document must be in portrait orientation)
  • US Letter, US Legal & A4 Paper Size
  • Limited to 1 fax destination per API submission
  • All requests must be via HTTPS



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