So, which one are you using?  I signed up for the free e-fax and was very disappointed when it became clear that it would only convert a fax to e-mail on the computer physically attached to the fax machine, because the software enabling you to open the attachment resides on your computer and no one else's.  I currently have e-mail orders set up to be forwarded from my service provider to my hotmail account, which then notifies my cell phone when I have an order.  I can retrieve hotmail messages on my cell phone, but not attachments.  At least in that manner I can stop at a public computer and log on for normal attachments, but not for e-fax.  Besides the fact that e-fax permanently converted all of my .tif docs and now I can't get rid of it!  I was trying to figure out a way for fax orders to come to me the same way, when I am out in the field.  E-fax did not seem to work that way.  Which are you using?