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Outlook

How to Send a Fax in Outlook Easily 2026

By Impran M N

You don't need a physical fax machine to send documents anymore. By pairing Outlook's regular email composer with an email-to-fax gateway service, you can send a PDF or Word document to any fax number directly from your inbox. This guide covers formatting the recipient address, attaching your document, and confirming the transmission went through.

01Choose a fax gateway provider

Sign up with a reputable email-to-fax service, since Outlook itself doesn't fax anything without one bridging the connection to a fax network.

02Compose a new email

Open Outlook and start a new message just as you would for a normal email.

03Format the recipient address

Enter the destination fax number combined with your provider's specific domain extension in the To field, following the exact syntax your gateway requires.

04Write your cover text and attach the document

Type your message body, which the gateway will typically convert into a fax cover sheet, then attach your PDF or Word file to be transmitted as the fax pages.

05Send and verify the transmission

Send the email and watch for an automated confirmation receipt from your provider that tells you whether the fax was delivered successfully.

FAQ

Frequently asked questions

Can I send a fax from Outlook without a fax machine?

Yes, as long as you use an email-to-fax gateway provider, Outlook can send the fax entirely through your normal email composer.

What file types can I fax through this method?

Most gateway providers accept PDF, DOCX, or TIFF attachments, which get converted into fax-compatible pages.

How do I know if my fax was actually delivered?

Your gateway provider sends an automated email confirmation receipt after transmission, which you should check to verify successful delivery.

Is this method secure for sensitive documents?

Reputable gateway providers offer encryption, but you should confirm your provider's security settings before sending confidential legal or financial paperwork.

Watch the full walkthrough

The same steps, demonstrated on screen from start to finish.