That differs from provider to provider. Whichever one you choose will provide you with documentation that specifies what to do. Often it involves using FTP to put image or PDF files on the provider's server.
Googling for "efax" or "e-fax" will find many providers.
Joined: Jan 29, 2006
HI. I want SMTP email to send fax machine.I want a simple sample program to send fax.
Joined: Mar 22, 2005
Some providers offer mail-to-fax capability, but not all do. Check the feature list before you sign up with one.