One of the main reasons for failure to receive faxes is listing the wrong email address for receiving faxes in your Account Preferences. If you are not receiving faxes, verify the email address where you are receiving the faxes. Use the steps outlined below to solve the issue:
Log in to your eFax account and navigate to Account Details
Select the Preferences tab and choose Edit
Edit the listed email address, or enter a new email address in any available blank field
Click Update
You should also add message@inbound.efax.com to your email account address book to ensure messages are not being routed accidentally to spam folders.