How to Send a Fax Using Your Email Account

Email-to-fax services let you send a fax by attaching a document to an email

You can fax a document without a fax machine by sending an email to a fax number through an email-to-fax service. These services convert your email and attachment into a fax and deliver it to the recipient's fax machine. The process takes minutes and works from any device with email access.

Most services work the same way: you compose an email, attach your document, address it to a special fax number provided by the service, and send it. The service receives the email, converts the attachment to fax format, and sends it through the phone line to the destination fax machine. No special software or hardware is required on your end.

Key Takeaways

• Email-to-fax services convert your email attachment into a fax and send it to a fax machine, with most services charging per page or offering monthly plans.
• You address the email to a fax number in the format 1234567890@servicename.com, where the service translates that to the actual fax number.
• Common services include eFax, Fax.plus, and HelloFax, each with different pricing and page limits depending on your plan.
• The recipient receives the fax on their fax machine just as if it came from a traditional fax machine, with no special setup required on their end.
• Document format matters — PDF, Word, and image files work best, while some services reject certain file types or oversized attachments.

How to set up an email-to-fax account

Sign up for an email-to-fax service by visiting their website and creating an account. You will provide your email address, create a password, and choose a plan. Most services offer a free trial with a limited number of pages, so you can test the service before paying.

During signup, the service assigns you a fax number or lets you choose one. This number becomes part of your fax email address — for example, if your fax number is 555-123-4567 and you use eFax, your fax email might be 5551234567@efaxsend.com. Write down this fax email address and keep it handy.

Some services also let you set up a fax inbox so people can send faxes back to you by faxing that number. This turns your email account into a two-way fax system, though receiving faxes may require a paid plan.

Composing and sending your fax email

Open your regular email account — Gmail, Outlook, Yahoo, or any other provider works. Compose a new email as you normally would. In the "To" field, enter the fax email address provided by your service, not the recipient's actual fax number. The service translates that email address into the real fax number behind the scenes.

Attach the document you want to fax. Most services accept PDF files, Word documents (.docx), image files (JPG, PNG), and scanned documents. Keep file sizes under 25 MB, as larger files may be rejected. If you have multiple pages, combine them into a single PDF before attaching — most services count pages, not files, so a 10-page PDF costs the same as a 1-page PDF if your plan covers it.

Add a subject line and any message text you want in the email body. Some services print the subject and message on a cover page, while others ignore it and send only the attachment. Check your service's documentation to know what appears on the fax.

Send the email as you normally would. The service processes it within seconds to a few minutes, and the fax appears on the recipient's machine shortly after.

Understanding pricing and page limits

Email-to-fax services charge in different ways. Some offer pay-per-fax pricing, where you pay a small amount (usually 25 cents to $1) per fax sent, regardless of page count. Others use monthly subscriptions that include a set number of pages per month — for example, $10 per month for 50 pages, or $20 per month for 500 pages.

Free trials typically allow 1 to 5 faxes before requiring payment. If you send faxes rarely, pay-per-fax is usually cheaper. If you send several faxes each month, a subscription plan saves money. Calculate your typical monthly usage before choosing a plan.

International faxes often cost more than domestic ones. Some services charge extra for faxes to certain countries or do not support international faxing at all. Check the service's rate sheet before sending to an international number.

What happens if the fax fails to send

If the fax number is wrong, disconnected, or busy, the service will send you a delivery failure notification by email. This usually arrives within 15 to 30 minutes. The notification tells you why the fax failed — invalid number, line busy, or no answer — so you can correct the problem and resend.

Some services automatically retry failed faxes a few times before giving up. Check your service's retry policy so you know whether to resend manually or wait for an automatic retry.

If you do not receive a delivery confirmation or failure notice within an hour, log into your service account and check the fax history. Most services show the status of every fax you have sent — delivered, failed, pending, or in progress.

File format and document preparation tips

PDF is the safest format for faxing because it preserves formatting and fonts exactly as you created them. If you have a Word document, export it as a PDF before attaching it. This prevents formatting problems if the recipient's fax machine handles the conversion differently.

Scanned documents work well if they are clear and at least 200 DPI (dots per inch). Low-resolution scans may appear blurry on the recipient's fax machine. If you are scanning a document, use your scanner's "document" or "text" mode rather than "photo" mode for the sharpest result.

Avoid sending files with embedded images, complex graphics, or unusual fonts. Fax machines are designed for text and straightforward graphics, so highly designed documents may not transmit clearly. Stick to black text on a white background when possible.

Check the file size before sending. If your attachment is larger than your service allows (usually 25 MB), compress it or split it into multiple faxes. Most services reject oversized files and send you an error message.

Comparing popular email-to-fax services

eFax is one of the oldest and most widely used services. It offers both sending and receiving, with plans starting around $10 per month for 100 pages. eFax lets you receive faxes in your email inbox and send faxes from your phone or computer.

Fax.plus focuses on simplicity and charges per fax sent rather than by subscription. You pay roughly 50 cents per fax, with no monthly fee. This works well if you send faxes sporadically.

HelloFax integrates with document signing and storage services like Dropbox and Google Drive. It charges around $10 to $20 per month depending on the plan. If you already use those services, HelloFax may fit your workflow.

Google Fax is available through Google Workspace (formerly G Suite) and lets you send faxes directly from Google Drive. It charges per page sent, usually around 25 cents per page. This option works only if you have a Google Workspace account.

Frequently Asked Questions

Can I fax to an international number?

Most services support international faxing, but it usually costs more than domestic faxes. Check your service's country list before signing up. Some services do not fax to certain countries due to regulations or infrastructure limits. International faxes may also take longer to deliver.

What if I need to fax multiple documents?

Combine all documents into a single PDF file before attaching it. Most services count pages, not files, so sending one 20-page PDF costs the same as sending 20 separate 1-page PDFs. Use free tools like ILovePDF or Smallpdf to merge documents online.

Do I need to use the same email account every time?

No. You can send faxes from any email account — your work email, personal email, or a friend's email. The service recognizes the fax email address you send to, not the account you send from. However, delivery confirmations and failure notices go to the email account you used to send the fax.

Can the recipient reply to my fax by email?

No. When you send a fax through email, the recipient receives it on their fax machine, not in their email. They cannot reply by email unless they also have an email-to-fax service set up. If they want to respond, they must fax you back or contact you through another method.

What happens if I send a fax at night or on a weekend?

The fax sends when ready, just as if you sent it during business hours. The recipient's fax machine receives it whenever it arrives. If their machine is off or out of paper, the fax may fail. Most services will notify you of the failure so you can resend during business hours.