Yes, you can send a fax from email, but the method depends on what service you use

You can send a fax from your email inbox without owning a fax machine or visiting a fax service. The process works through email-to-fax services — online platforms that convert your email message and attachments into a fax and deliver it to a phone number. Some services are free with limits; others charge per fax or by subscription.

The basic steps are the same across most services: you sign up for an account, you get a unique email address or instructions for formatting your recipient's fax number, you compose an email with your document attached, and you send it. The service handles the conversion and transmission on the back end. The person receiving the fax gets a standard fax on their machine or fax software — they do not need to know it came from email.

How long it takes varies. Most services deliver within minutes during business hours. Some charge by the page, some by the fax, and some offer monthly plans. A few services let you send one or two faxes per month free, then charge for additional ones.

Key Takeaways

  • Email-to-fax services convert your email and attachments into a fax and send it to any fax number you specify.
  • You typically compose a regular email, attach your document, and send it to a special address or format provided by the service.
  • Most services deliver within minutes, though some have daily limits or charge per page or per fax.
  • The recipient receives a standard fax on their machine — they do not see that it came from email.
  • Free services usually allow a few faxes per month; beyond that you pay per fax or subscribe monthly.

How the email-to-fax process actually works

When you send an email through an email-to-fax service, you are not actually sending a fax through your email provider. Instead, you are sending an email to a service that acts as a middleman. That service receives your email, extracts the attachments, converts them into fax format, and dials the fax number you specified in the email subject line or recipient field.

The conversion step is important: fax machines expect a specific file format (usually TIFF or PDF). The service handles this automatically. Your document arrives on the other end as a standard fax printout, exactly as if you had sent it from a physical fax machine.

Most services support common file types — PDF, Word documents, images, Excel spreadsheets — and convert them on the fly. Some services have limits on file size (often 10 to 25 MB per fax) or the number of pages per fax (sometimes 50 pages maximum). Check the service's limits before you send a large document.

Popular email-to-fax services and what they cost

Several established services offer email-to-fax conversion. eFax is one of the largest; it offers a monthly plan that includes a dedicated fax number and the ability to send and receive faxes. HelloFax (owned by Dropbox) integrates with Dropbox and Google Drive and charges per fax or by monthly subscription. Fax.plus offers both free and paid tiers. Google Fax is available through Google Workspace accounts and charges per page.

Free or low-cost options include Faxburner, which allows a limited number of free faxes per month, and MyFax, which has a free tier with restrictions. Some services bundle faxing with other document management tools, so if you already use a particular platform, faxing may be included.

Pricing structures vary widely. Some charge a flat fee per fax (typically $1 to $5). Others charge by the page (often $0.10 to $0.25 per page). Monthly subscriptions usually range from $10 to $30 and include a set number of faxes or pages per month. If you send faxes infrequently, a pay-per-fax service is usually cheaper than a monthly plan. If you send several faxes weekly, a subscription may save money.

What documents you can send and file format requirements

Email-to-fax services accept most common document types. PDF files are the most reliable — they preserve formatting and are designed for printing, which is essentially what a fax does. Word documents (.docx, .doc), images (.jpg, .png), and Excel files (.xlsx) also work, though the service converts them to fax format, which may affect layout slightly.

Scanned documents work well because they are already image-based. If you have a paper document, scan it to PDF first, then attach it to your email. Most smartphone scanning apps (like the built-in camera app on iOS or Google Lens on Android) can create a PDF-quality scan.

Avoid sending files in formats that require special software to open — like proprietary design files or video files. Stick to documents meant for printing or viewing. Most services reject files larger than 10 to 25 MB, so if your document is very large, compress it or split it into multiple faxes.

Setting up your first fax through email

The setup process is straightforward. Create an account with your chosen service using your email address and a password. Most services ask for your name and billing information (even if you are using the free tier). You will then receive instructions specific to that service — usually a special email address to send faxes to, or a format for the recipient's fax number in the subject line.

For example, some services ask you to send your email to a generic address like send@servicename.com and put the fax number in the subject line. Others give you a unique email address like yourname@servicename.com and ask you to put the fax number in the "To" field. Read the service's instructions carefully — the format matters, or your fax will not go through.

Attach your document to the email as you normally would, write any message in the body if the service allows it, and send. Most services send you a confirmation email within minutes saying the fax was sent or is queued. If the fax fails (for example, if the fax number is wrong or the machine is offline), the service usually notifies you by email.

Common problems and how to fix them

The most frequent issue is formatting the recipient's fax number incorrectly. Different services expect different formats — some want just the number (5551234567), others want it with dashes (555-123-4567), and some want a country code (+1-555-123-4567). Check your service's instructions and follow them exactly. A single digit wrong means the fax goes nowhere.

Another common problem is sending a file type the service does not support or a file that is too large. If your fax fails, check the confirmation email — most services explain why. If the file is too large, try compressing it or splitting the document into two faxes. If the file type is not supported, convert it to PDF first.

Occasionally a fax fails because the receiving fax machine is offline, out of paper, or has an error. The service usually retries automatically a few times. If it continues to fail, ask the recipient to confirm their fax number and check that their machine is working. Some services allow you to resend a failed fax at no extra charge within a certain window.

When email-to-fax makes sense versus other options

Email-to-fax is most useful if you send faxes occasionally and do not want to buy or maintain a fax machine. It is also convenient if you are already working on a document in your email or cloud storage — you can send it directly without printing and walking to a fax machine.

If you receive faxes regularly, a service that gives you a dedicated fax number (like eFax or MyFax) is more practical than a send-only service. If you send dozens of faxes per week, a monthly subscription is cheaper than paying per fax. If you send faxes very rarely — once or twice a year — a free service or a pay-per-fax option is the most cost-effective.

For one-time faxes, some local print shops (like FedEx Office or UPS Store) still offer fax services for a small fee per page. This can be cheaper than signing up for an online service if you truly need it only once. However, email-to-fax is faster and more convenient if you have a document already in digital form.

Frequently Asked Questions

Can I send a fax to an international fax number?

Most email-to-fax services support international faxing, but it usually costs more than domestic faxes. You typically need to include the country code in the fax number (for example, +44 for the UK). Check your service's pricing for international faxes before you send — some charge significantly more per page for overseas transmission.

What if I need to send a fax but do not have a document file yet?

You can create a document in Google Docs, Microsoft Word, or any word processor, save it as a PDF, and attach it to your fax email. If you have a paper document, use your phone's camera or a scanning app to create a PDF first. Most smartphone scanning apps produce fax-quality images automatically.

Do I need to give the service my credit card information even for the free tier?

Some free services do not require payment information; others ask for a credit card to verify your identity, then charge you only if you exceed the free limit. Read the service's terms before signing up. If you prefer not to provide a card, look for services that offer truly free faxes without requiring payment details.

How long does it take for a fax to arrive after I send the email?

Most faxes arrive within a few minutes during business hours. Some services prioritize faxes and deliver within seconds; others may take 15 to 30 minutes if they are processing a high volume. You will receive a confirmation email when the fax is sent. If the receiving fax machine is offline, the service usually retries automatically.

Can I send a fax from my phone using email-to-fax?

Yes. Compose an email on your phone, attach a document or photo, and send it to the service's fax email address or format. The process is the same as on a computer. If you need to scan a paper document first, use your phone's built-in camera app or a scanning app like Adobe Scan or Microsoft Lens to create a PDF.