Integration · Dropbox
Back up email to Dropbox — automatically.
Forward any email to your private InboxBucket address and the original .eml lands in a folder in your own Dropbox — headers, body, and attachments intact, synced to every device you own.
Free plan available · No credit card required
- From:
- Acme Billing <[email protected]>
- To:
- [email protected]
- Subject:
- Invoice #4471 — June services
- Files:
- invoice-4471.pdf
/Apps/InboxBucket/2026/07/0713__invoice-4471__acme-billing.eml
✓ stored · 84 KB · original MIME
Why back up to Dropbox
A copy that outlives the account.
Your mailbox can vanish
Lose access to your account and years of receipts and records go dark with it. A .eml archive in Dropbox is a copy that outlives the mailbox it came from.
Files you can open anywhere
Not a proprietary export. Each email is a plain .eml in your Dropbox — open it on any device, in any client, today or in a decade.
Set it once
A single forwarding rule and new mail archives itself from then on — nothing to run on a schedule, nothing to remember.
How it works
Three steps, then it runs itself.
Connect Dropbox
Sign in to Dropbox and approve one thing: an app folder InboxBucket creates. With Dropbox's App folder permission, it can only ever touch that one folder — never the rest of your Dropbox.
Get your address
You receive a private inbound address that exists only to receive your mail:
[email protected]Forward anything
Forward one message by hand, or set an auto-forward rule in your mail provider so every email backs itself up. Seconds later, the original .eml is sitting in your Dropbox.
The access we ask for
One app folder. Nothing else.
InboxBucket connects with Dropbox's App folder permission — the scoped access where an app gets a single folder of its own and can't see anything else in your Dropbox. Your other files and folders stay invisible to us.
We're the pipe, not the vault. Mail only passes through us on its way to your Dropbox; what we keep is the metadata behind your dashboard — sender, subject, date, status — never the messages. Revoke access whenever you like from your Dropbox connected apps, and the .eml files already saved stay put.
- Uses Dropbox's App folder permission — one folder of its own
- No access to the rest of your Dropbox
- Can't read, move, or delete files it didn't create
- Revocable anytime — your saved .eml files remain
What lands in your Dropbox
Sorted, dated, and yours.
InboxBucket files each message into a dated folder tree inside its app folder, named so you can find anything at a glance. Each file is a complete .eml — the original message, not a rendering or an export — and it syncs to every device you own.
A note on space: Dropbox Basic is 2 GB, so a large archive can outgrow the free tier — Plus and above give you 2 TB or more. Each .eml is just text plus its attachments, so most archives stay small. Prefer somewhere roomier? Point InboxBucket at Google Drive, OneDrive, or S3 instead.
Dropbox/
└── Apps/
└── InboxBucket/
└── 2026/
└── 07/
├── 0713__invoice-4471__acme-billing.eml
├── 0711__signed-contract__legal.eml
└── 0708__flight-receipt__airline.emlThe details
Built like a backup should be.
The message itself, not a copy of it
Each email is saved as a .eml — the exact RFC 822 bytes, headers and attachments included. It opens in any mail client or a text editor, with no format to convert, now or later.
Big attachments, no drama
Attachments stream to Dropbox in chunks, so a 40 MB signed contract lands whole alongside the message it came with, regardless of provider size caps.
One copy, not five
Forwards get duplicated and mail servers retry. Deduplication on Message-ID means each message is written to your Dropbox exactly once.
Your list, your archive
Only senders on your allowlist ever reach Dropbox, so a scraped address can't bury your files under spam. You decide who gets archived.
Never a silent drop
A failed upload queues and retries, staying visible in your dashboard until it lands. If the Dropbox connection lapses, you get a clear heads-up instead of a quiet failure.
Synced everywhere you are
Because it's an ordinary Dropbox folder, your archive syncs to every device Dropbox runs on — desktop, web, and mobile — and stays searchable from your dashboard too.
Works with any mailbox
Dropbox isn't tied to a mail provider, so back up from Gmail, Outlook, Fastmail, or anything else — set one forwarding rule and it archives to Dropbox from then on.
FAQ
Dropbox backup, answered.
Where are my emails stored?
In your own Dropbox. InboxBucket passes each message through only long enough to parse and deliver it, then writes the original .eml to the app folder it created in your Dropbox. The archived copy lives in your account, not ours — we keep only the metadata (sender, subject, date, status) that powers your searchable dashboard.
What Dropbox permissions does InboxBucket need?
InboxBucket connects using Dropbox's App folder permission — the scoped access where an app gets a single folder of its own and cannot see anything else in your Dropbox. Your other files and folders stay invisible to us. You can revoke access anytime from the connected apps in your Dropbox account settings, and the files already saved stay where they are.
How much Dropbox storage do I need?
Dropbox Basic is 2 GB free, which is modest for a large mail archive; Dropbox Plus and higher plans give you 2 TB or more. Since each .eml is just text plus its attachments, most archives stay small — but if space is tight, point InboxBucket at Google Drive, OneDrive, or S3 instead.
Which mail providers can I back up to Dropbox?
Any of them. Dropbox isn't tied to a mail provider, so you can forward from Gmail, Outlook, Yahoo, Fastmail, or anything else — set an auto-forward rule that points at your InboxBucket address and matching mail is archived to Dropbox automatically.
Does the archive sync to my devices?
Yes. The app folder is a normal Dropbox folder, so it syncs everywhere Dropbox does — your desktop, the web, and the mobile apps. A backed-up email is on all your devices moments after it arrives, and searchable from your InboxBucket dashboard as well.
What format are the backups in?
Every email is stored as a .eml file — the standard RFC 822 message exactly as it arrived, with headers, body, and attachments in one portable file. No proprietary format and nothing to export later; it opens in Outlook, Apple Mail, Thunderbird, or a plain text editor.
Is Dropbox email backup free?
Yes. The Free plan archives 100 emails a month, with one inbound address and one storage connection, plus full-fidelity .eml backup and searchable history — enough to back up your most important mailbox to Dropbox. The allowance resets on the 1st. The Lifetime plan is a one-time $79 payment with unlimited archived emails, addresses, and storage connections, no subscription.
Can I revoke InboxBucket's access later?
Anytime, from the connected apps list in your Dropbox account. Revoking stops new mail from being written, and everything already archived stays in your Dropbox — the files are yours, in a standard format, whether or not InboxBucket is still connected.
Free plan · No credit card
Put your email in your own Dropbox.
Connect Dropbox, get your address, and the next email you forward is saved to a folder you own.
Connect Dropbox