How to Send a Fax From Outlook — 3 Methods (2026)
By the Attajer Editorial Team · 7 min read · Last updated March 30, 2026
Microsoft Outlook doesn't include a built-in fax feature, but you can send faxes directly from Outlook using email-to-fax, an add-in, or a web app. Here are all three methods compared.
Outlook add-in + email-to-fax + web app
Method 1: Email-to-Fax (Easiest)
The fastest method. Works with every version of Outlook — desktop, web, and mobile.
- Sign up at Fax.plus (free, 10 pages)
- In Outlook, compose a new email
- To field:
[fax_number]@fax.plus(e.g.,+12125551234@fax.plus) - Attach your document (PDF recommended)
- Click Send — you'll get a delivery confirmation email
Method 2: Fax.plus Outlook Add-in
For frequent faxers, the Fax.plus add-in integrates directly into Outlook's ribbon.
- In Outlook, go to File → Get Add-ins (or Insert → Get Add-ins in Outlook Web)
- Search for "Fax.plus" and install
- The Fax.plus panel appears in your Outlook sidebar
- Enter the fax number, attach files, and send — all within Outlook
Method 3: Web App (No Installation)
If you prefer not to install anything, simply visit fax.plus in your browser, upload your document, and send.
Which Method Should You Use?
| Method | Best For | Setup Time | Works With |
|---|---|---|---|
| Email-to-Fax | Occasional faxing | 30 seconds | All Outlook versions |
| Outlook Add-in | Frequent faxing | 2 minutes | Outlook 2016+ / Web |
| Web App | One-time fax | 1 minute | Any browser |
Can You Send a Fax from Outlook for Free?
Yes! Fax.plus gives you 10 free pages when you sign up — no credit card required. This works with all three methods (email-to-fax, add-in, and web app). After the free pages, plans start at $6.99/month.
FAQ
No, Microsoft 365 doesn't include a native fax service. However, you can add fax capability using the Fax.plus add-in from the Microsoft AppSource store.
Yes. With a paid Fax.plus plan, incoming faxes are delivered to your Outlook inbox as PDF attachments, just like a regular email.
Yes. Email-to-fax works with any version of Outlook — Windows, Mac, web, and mobile.