Send Fax via Email
InterFAX is an online fax service that lets you send fax via email. All you need is an Internet connection, and you can send faxes from anywhere using a PC or a mobile device. Whether you are one person sending faxes in your SOHO or an organization with thousands of employees, InterFAX saves you time and money while providing the convenience of faxing via email.
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Send faxes from any email program, business application or mobile device | ![]() |
Send faxes with the convenience of email | ||
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Manage multiple senders with full cost control | ![]() |
Eliminate equipment, save maintenance & telecom costs | ||
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Excellent rates, no setup charges or monthly fees | ![]() |
Top notch support in your local language |
Send Faxes from Any Application
Send faxes via email directly from your favorite email program - Outlook, Outlook Express, Gmail, Yahoo!, Hotmail, or any other email program. You can also send faxes directly from within Microsoft Office applications or from any native Google Docs document.
Using our fax API, you can integrate our fax service with any enterprise application, and send faxes online directly from your in-house application.
Broadcast Faxes to Multiple Recipients
Sending faxes to multiple recipients has never been easier. Manage multiple distribution lists online, and simply send a single email message to your list – a fax will automatically be sent via email to the entire list. InterFAX supports up to 20,000 recipients per list.
Customize Fax Sending
With InterFAX you have full control over how and when your faxes are sent via email:
- Fax header - the outbound fax header is fully customizable, so you can hide or display the transmission date and time, page number, total pages, sending machine identifier, receiving machine identifier, and free text.
- Retry policy - determine how fax failures should be handled and the number of attempts to retry upon busy or no answer signals.
- Confirmation policy - decide which confirmations you would like to receive - upon success, failure, for all faxes, or no confirmations at all.
- Deferred transmission - schedule your fax to be sent at any future time and date, up to 30 days ahead.
Easily Resubmit Failed Faxes
Need to resend a fax? Easily resubmit the fax to the right number with two mouse clicks, or resubmit all failed faxes in a broadcast to multiple recipients.
Easily Manage Multiple Users
InterFAX helps you manage multiple users in your organization (scaling up to large numbers of employees). Simply define multiple email addresses as 'allowed senders' and InterFAX will accept messages for faxing from these senders, and will associate them with a single username. Additionally, entire domains may be defined as allowed senders.
Administrators can retain full control over spending, by viewing the usage of individual users and the precise cost of transactions using a web-based interface.
Send Faxes Securely with Maximum Privacy
Outgoing faxes can be encrypted so that they cannot be read on their way from your computer to our servers. Additionally, we can authenticate senders using private key signatures, thus ensuring that no one else is using your online fax account.
The ‘delete fax after completion’ option ensures that your faxes are permanently removed from our servers after being sent via email, so that sensitive data such as credit card details or patient-identifying information is not exposed. InterFAX supports the most stringent regulations for data security and privacy, including the American Health Insurance Portability and Accountability Act (HIPAA).
Industry-Leading Support
Our service includes top-notch phone and email support in your local language. Our knowledgeable local support teams are at your service during local business hours, and we reply to all email requests within one business day.

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