Email-to-fax vs online fax: what's the difference

How email-to-fax works

With email-to-fax, you write an email to an address built from the fax number, attach a file, and the provider converts the attachment into a fax. Incoming faxes are usually returned the same way, as PDF attachments to your email inbox.

It feels convenient because it lives where you already work. The catch is that every document, outgoing and incoming, passes through and stays in an email system. Copies end up in sent folders, on phones and in backups you may not control.

Side-by-side comparison

• Where documents live: email-to-fax keeps copies in mailboxes; browser fax keeps them in one account with retention controls
• Sending mistakes: a typo in an email address can misroute a fax; the browser service asks you to confirm each fax number before sending
• Records: email logs are scattered; the browser service keeps an append-only audit log of every view, download and send, with CSV export
• Access: email-to-fax depends on whoever can read the mailbox; browser fax uses roles (owner, admin, member, viewer) and idle sign-out
• Sign-in: email accounts often rely on reused passwords; the browser service uses a one-time code and two-step verification

When each model makes sense

Email-to-fax can suit low-sensitivity material, such as a supplier order form, where convenience matters more than control. For anything covered by PIPEDA or a provincial health privacy law such as Ontario's PHIPA, keeping documents out of ordinary email removes a whole category of risk.

If you are used to email-to-fax, the switch is small. Instead of attaching a file to an email, you attach the same PDF, PNG or JPG in your browser.

1. Save the email attachment you want to send to your computer.
2. Sign in to your fax account with your email and one-time code.
3. Upload the file, add a cover page and enter the fax number.
4. Confirm the number and send. The delivery receipt is saved with the fax.