Send a fax programmatically through the InterFAX fax SMTP interface
InterFAX is an online fax service, allowing you to fax from any application using SMTP email messages. Sending a fax programmatically through the InterFAX fax SMTP interface is as simple as generating a regular email message. InterFAX also provides an advanced fax API with multiple destinations, deferred transmission, document resolution, and more.
Fax SMTP Usage Samples
How to send a fax using the SMTP interface, inserting the content of the fax message into the SMTP body.
How to send a fax using the SMTP interface, by adding the fax content as an attachment, and instructing the system to ignore the email body.
How to send a fax using the SMTP interface, by adding an attachment, and instructing the system to send both the SMTP body and the attachment in the fax message.
How to send an SMTP fax at a future time.
InterFAX Developer Resources

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