Microsoft Outlook add-in

Reply with every
attachment intact.

The one button Outlook forgot. Hit reply and keep all the original files — no saving, no re-attaching, no wasted minutes.

Free plan · Pro from $0.99 · installs once across every device · Outlook 2013+

Outlook — Q3 Budget review
Reply
Reply all
Forward
FromSKSandra Keller · Finance
Re: Q3 Budget review — please confirm

Hi team — replying with the same three files attached so everyone has them in one place. Thanks for the quick turnaround!

XLSQ3-budget.xlsx PDFforecast.pdf PNGchart-final.png

All 3 attachments carried over automatically

faster than save & re-attach
108K+
installs on Microsoft AppSource
132
countries with active users
2
buttons · 2 functions
100%
stays in your Microsoft environment
The annoying way vs. one click

Stop the download-rename-reattach dance.

Replying with the same files back used to mean a dozen little steps. Now it's a single button — the attachments come along for the ride.

Before · the manual loop
  • 1Open each attachment one by one
  • 2Save every file to disk or cloud
  • 3Click reply on the original email
  • 4Hunt down where you saved them
  • 5Re-attach all of them, hope none are missing

≈ 5 fiddly steps · easy to forget a file

After · Reply with attachment
  • 1Click “Reply with attachment” in the ribbon
  • Every original file is already attached
  • Edit in the email and send — done

1 click. Nothing forgotten, nothing saved to disk.

The reasons you'll love it

Tiny on purpose. Serious underneath.

The best tools do one thing and disappear. This one adds two buttons and a whole lot of saved minutes — built on infrastructure you'd trust with the rest of your inbox.

Minimalist

2 buttons · 2 functions

The very best applications focus on the essential and leave out the rest. No dashboards, no settings maze — just reply, and reply-all, with attachments.

Robust

low code · low error

Reliability is the whole game for an efficiency tool. A complete software-lifecycle process keeps the experience boringly dependable, day after day.

High availability

EU-hosted · Hetzner

Running highly available clusters isn't our craft — so we partner with the best. Hetzner's reliable, EU-based data centres keep the add-in fast and up for users worldwide.

Privacy by architecture

Your email never leaves your Microsoft world.

To keep replies instant and your data yours, the whole reply is assembled inside Microsoft 365 — your Outlook client and Microsoft Graph — using your own Microsoft sign-in. No email or attachment is ever copied to our servers.

1

Install once, from AppSource

It lands in your Exchange mailbox, so it's instantly there on every desktop device you sign into.

2

Open a reply, hit the new button

“Reply with attachment” and “Reply all with attachment” sit right in the Outlook ribbon, up from Outlook 2013.

3

Everything's attached. Send.

The original files are already there. Edit them in the email if you like, then send as usual.

Outlook 2013 or newer Exchange mailbox Active internet connection

Note: POP/IMAP mailboxes aren't supported by Microsoft for Office add-ins (yet).

No data round-trip

Here's the whole data flow. Notice what's missing.

Inside Microsoft 365
Your Outlook client
You click “Reply with attachment”, signed in with your own Microsoft account.
Microsoft Graph does the re-attaching
With your delegated token, Graph reads the original files and attaches every one to the reply — all within Microsoft 365.
The reply is sent
Your recipient receives it with every original file, intact.
your mail is never routed to us
Binary Please serversserve only the add-in’s code — never your mail or attachments
Loved around the world

108K installs across 132 countries.

From Manila to Munich, people reach for the same two buttons every day. Here are the regions where Reply with attachment sees the most active Outlook sessions.

107,988
AppSource installs
132
countries active
Join them — install free
Top countries · active sessions
United States4,042
Philippines2,041
India1,078
Thailand771
Saudi Arabia478
Canada446
United Kingdom378
… and 125 more countries
Simple pricing

Start free. Go Pro for the price of a coffee.

Reply with attachment works on the free plan forever. Pro removes the small email attribution and lets you connect more mailboxes — launch pricing is on right now.

Free
$0/ forever

Everything you need to stop the save-and-reattach dance.

  • Reply & reply-all with every attachment
  • One mailbox / account
  • Installs once, syncs to every device
  • Adds a small “Sent with Reply with attachment” line
Install free
Pro · Lifetime
$2.99once$7.99

One payment. Pro features, yours forever.

  • Everything in Pro
  • No subscription — pay once
  • Up to 3 mailboxes / accounts
  • All future Pro updates
Buy once

Prices in USD. Plans are managed in your account after install. Compare plans in detail →

Frequently asked

Good questions, short answers.

What exactly does it do?

It adds two buttons to Outlook — “Reply with attachment” and “Reply all with attachment.” Click one, and your reply opens with every original attachment already attached. No saving to disk, no re-attaching, nothing forgotten.

Where does my email data go?

Nowhere outside Microsoft. The reply is assembled inside Microsoft 365 — your Outlook client and Microsoft Graph, using your own sign-in — so no email or attachment data is ever transferred to our servers. That keeps replies fast and your data yours.

Which Outlook versions and mailboxes are supported?

Outlook 2013 and newer, with a Microsoft Exchange mailbox. Office add-ins don't work with POP/IMAP mailboxes — that's a Microsoft limitation, not ours. The add-in is web-based, so an active internet connection is required.

Do I have to install it on every computer?

No. You install once from AppSource and it's stored in your Exchange mailbox, so the buttons show up automatically on every desktop device you sign into.

What does it cost?

It's free, with no ads and no license fees. To cover our high-availability infrastructure, we gratefully accept voluntary donations — but the tool stays fully functional either way.

I need it for my whole company, or I have a feature request.

Wonderful — get in touch. For enterprise rollouts, feature requests or help, reach the team at binaryplease.com and we'll take it from there.