eFax Free is free (and the system is reliable) but if the number of inbound fax pages exceed the monthly limit (read their fine print) your account will be terminated with immediate effect. You'll get a rather blunt email telling you so, inviting you to apply for a pay-for account. The email wording could have been more polite but the tone was enough for me to abandon it for a lower cost but effective alternative (maxemail) since my fax traffic volume doesn't warrant the cost of the full eFax pay-for service.