CobraLedger logo CobraLedger 365 Backup & Archive
CobraLedger 365 Backup & Archive

Your Microsoft 365 email,
backed up, searchable, recoverable.

CobraLedger 365 Backup & Archive automatically captures every message into a fully managed archive with unlimited storage — advanced search within mailboxes, instant recovery of items and folders, export to PST or open .eml, an API for integration, and reports on the schedule you choose.

Mailboxes fill up. Staff leave. Compliance calls.

Microsoft 365 keeps your live mailboxes running — but it was never built to be a separate, searchable record of every email your business sends and receives. Retention gaps, deleted items, departed employees, and legal or regulatory requests all create the same two questions: can you still find that email — and can you get it back today? CobraLedger 365 Backup & Archive is built so the answer to both is yes: advanced search across your mailboxes finds it, instant recovery of a single item or a whole folder returns it, and PST export hands it to whoever asked.

Set it up once. It runs on its own.

Four steps from connection to a continuously growing backup & archive you control.

1

Connect Microsoft 365

Securely link your tenant with modern certificate-based authentication. We request read-only access to mail — nothing more.

2

Choose your mailboxes

Pick which mailboxes to back up and archive. Scope access precisely, right down to the individual mailbox.

3

We back up & archive everything

New mail is captured continuously into your dedicated archive — fully managed by the platform, unlimited storage, in standard .eml format.

4

Search, recover & export

Advanced search finds any message in seconds. Recover a single item or an entire folder instantly, export to .pst or .eml, and get daily, weekly, or monthly reports on the way the archive is running.

What you actually get.

An archive is only worth having if you can work with it. These are the tools you'll use on an ordinary Tuesday — not just when the auditor calls.

Instant recovery of items and folders

Somebody emptied Deleted Items, or a whole folder went missing. Find it in the archive and pull it back — a single message, an attachment, or the entire folder — in seconds. There's no restore job to queue and nothing to wait on.

Export to PST

Package any selection of archived mail as a standard Outlook .pst file — the format legal, HR, and e-discovery teams already expect — or take the raw open .eml files instead. Either way, your data leaves with you.

Advanced search within mailboxes

Search inside one mailbox or across every mailbox you archive: sender, recipient, subject, date range, attachments. Results come back in seconds, and you can open, download, or export straight from them.

API for integration

Everything the portal does, your own systems can do too. Wire the archive into your RMM, help desk, compliance workflow, or onboarding scripts instead of clicking through a browser.

Daily, weekly & monthly reports

Scheduled reports arrive by email on the cadence you pick — what was archived, which mailboxes are healthy, and anything that needs a look. Silence stops being something you have to trust; you get told either way.

Built on one principle: it's your data.

Ownership, isolation, and read-only access — by design, not as an afterthought.

Unlimited storage, zero setup

The platform manages all archive storage for you — no storage accounts to provision, no capacity to plan, no per-GB fees. Every message is kept in open .eml format, not a proprietary vault, so you can export your data and leave anytime.

Hard tenant isolation

Every customer gets a dedicated, physically separate archive database. Your data never shares a table with anyone else's.

Find anything, instantly

Searchable metadata means locating a message takes seconds — no scanning mailboxes, no waiting.

Read-only by design

We connect with certificate-based app authentication and request only the access needed to read mail. We never modify, send, or delete your email.

Effortless onboarding

Connect, select mailboxes, done. Archiving begins automatically.

Security & data ownership

It's your data — and we built the product to keep it that way.

CobraLedger 365 Backup & Archive connects to Microsoft 365 with modern certificate-based app authentication and requests read-only access to mail — nothing more. We never modify, send, or delete your email. Your archive is stored in the platform's fully managed storage with unlimited capacity, in open .eml format — so while we run the storage, the data stays portable and yours: export any message, or your whole archive, whenever you want. Every customer also gets a dedicated, physically separate archive database, so your data never shares a table with anyone else's.

Certificate-based authModern app authentication to your tenant.
Read-only scopeOnly the access needed to read mail.
Dedicated databasePhysically separate per customer.
No lock-inOpen .eml — export anytime.
For MSPs and Partners

Manage every client's email backup & archive from one console.

If you manage Microsoft 365 for your clients, the CobraLedger MSP Console gives you a single view across your whole book of business — no logging into each client's account one at a time.

All your clients at a glanceMailbox counts, archive health, and sync status for every client you manage, in one dashboard.
One alerts feedSync failures, stale mailboxes, connection problems — aggregated across all your clients, so nothing gets missed.
Control mailbox archivingTurn archiving protection on or off for any mailbox, for any client you manage, without leaving the console.
Sign in with MicrosoftNo extra passwords. Access is invite-only.
Transparent by designEvery change you make is logged with a full audit trail, and both you and your client are emailed automatically — so your clients always know what changed and who changed it.
Become a partner → MSP Login →

Access is invite-only — tell us about your practice and we'll set up your partner login.

Simple per-mailbox pricing.

Unlimited storage on every plan. 14-day free trial. Choose monthly, or save with annual billing.

Free Forever

Get started at no cost — the core archive, unlimited storage included.

$0 / mailbox / mo
Free forever · no credit card
  • Unlimited archive storage
  • Advanced search within mailboxes
  • Instant recovery of items & folders
  • Bulk export in open .eml
  • Export to PST
  • Email alerts
  • Up to 3 mailboxes
Start free…

Questions, answered.

Where exactly is my email stored?
In the platform's secure, fully managed archive storage — there's nothing for you to provision or configure. Every message is saved in standard open .eml format, and every customer gets a dedicated, physically separate archive database. You can export any message — or your whole archive — whenever you want.
Is storage really unlimited?
Yes. There's no storage cap and no per-GB fees — pricing is per mailbox, and the platform manages all archive storage for you. Archive as much mail as your business generates; the price never changes with volume.
Can I recover a deleted message or a whole folder?
Yes. Find it with search and pull it straight back out of the archive — a single message, an attachment, or an entire folder — in seconds. There's no restore job to schedule and nothing to wait on.
Can I export to PST?
Yes. Package any selection of archived mail as a standard Outlook .pst file, which is what legal, HR, and e-discovery teams usually ask for. You can also take the raw open .eml files instead.
Is there an API?
Yes. There's an API for integration, so your RMM, help desk, compliance workflow, or onboarding scripts can drive the archive directly instead of somebody clicking through the portal.
Will I get reports?
Yes — daily, weekly, or monthly, on whichever cadence you choose. They arrive by email and cover what was archived and which mailboxes need attention, so you don't have to log in to confirm everything is running.
Do I need to bring my own storage account?
No. Storage is included and fully managed by the platform — you don't need a SharePoint site, a storage account, or a bucket anywhere. Connect Microsoft 365, pick your mailboxes, and archiving begins.
Does this delete or change anything in my mailboxes?
No. Access is strictly read-only. We copy mail into your archive; we never modify, move, send, or delete anything in your live mailboxes.
How secure is the connection to Microsoft 365?
We use modern certificate-based app authentication and request only read access to mail. Access can be scoped to just the mailboxes you choose.
How is my data kept separate from other customers?
Every customer gets a dedicated, physically separate archive database. Your searchable index is never mixed with anyone else's data.
Can I search old email quickly?
Yes. We index searchable metadata so you can find any archived message in seconds and download it directly from the web portal.
Is there a minimum or a free trial?
Premium includes a 14-day free trial and starts at a 4-mailbox minimum. Free Forever has no minimum and needs no trial — it's free indefinitely, for up to 3 mailboxes.
How much does it cost?
Two plans, both with unlimited storage: Free Forever at $0 for up to 3 mailboxes, and Premium at $1.24 / mailbox / mo billed annually ($14.90 / mailbox / yr) or $1.49 monthly. Premium adds a 14-day free trial and starts at a 4-mailbox minimum.
Is this a backup of my whole Microsoft 365?
No. It backs up and archives your Microsoft 365 email — the focus is retention, ownership, search, and recovery of mail. SharePoint, OneDrive, Teams, and tenant settings are out of scope, and the Service is not a disaster-recovery or business-continuity solution; see the Terms.

Start backing up & archiving your Microsoft 365 email today.

Unlimited storage, advanced search, instant recovery, PST export, an API, and reports on your schedule. Be up and running in minutes.

Start here…