Make sure the email address you are sending from is added to your account. You can add it in the dashboard under the Fax to email of your Fax service in the [Build dashboard]https://dashboard.sinch.com/fax/fax-to-email) or via the API.
Send an email to {PhoneNumberToSendFaxTo}@sinchfax.com with the following:
| Field | Description |
|---|---|
| Subject: | If you have multiple phone numbers associated with the email address, enter the number you want to use. If left blank, the first number that we find will be used. |
| Body: | By default, the email body is not used. |
| Attachments | Add any attachments you want to fax. If you want to specify the order of pages we recommend that you create one document with all pages in the correct order and attach that document. If you attach multiple documents we will merge them into one document in the order we receive them. |