mailbox.org
Standard from €3 a month, yearly (from summer 2026). Based in Germany.
Last checked 22 October 2026
How these stars are worked out. Commission never changes a star.
Key facts
- Cheapest plan
- Standard
€3 a month, yearly (from summer 2026) - Free plan
- No (30-day trial)
- Storage
- 20 GB
- Your own domain
- ✓ Yes
- End-to-end encryption
- Optional (PGP or encrypted storage)
- Company based in
- Germany
- Your data is kept in
- Germany
- Founded
- 2014
- Free trial
- 30 days free
- Funded by advertising
- No
- Works in any mail app
- ✓ IMAP and SMTP
- Calendar and contacts
- ✓ Yes
- Aliases
- Yes
- Open-source apps
- ✓ Yes
- Sign up without ID
- ✓ Yes
- White label
- No
- Reader offer
- None
Which plan includes your own domain needs checking
mailbox.org email addresses end in @mailbox.org.
Not sure what something means? See my email glossary.
Trust score
Still being checked
My Trust score counts only things mailbox.org controls: reliability, abuse handling, email security, account security, transparency, fair dealing and support. It doesn't change the stars above. I'll show a score once I've had a week of my own checks. So far 2.3 points are confirmed. How it's worked out
Reliability 0 of 1
- Website uptime over 30 daysFrom my hourly checks. 99% or more scores in full, 98% scores 0.75, 97% scores 0.5 and 95% scores 0.25. Needs a week of checks.Not checked yet: 0/1
Abuse and reputation 0 of 0.75
- Mail servers kept off blocklists for 30 daysFrom my daily checks of the free blocklists. A listing only counts if I see it on two separate days.Not checked yet: 0/0.5
- Publishes a way to report abuseNot checked yet: 0/0.25
Email security on its own domain 1 of 1
- DMARC set to rejectFrom my DNS checks of the domain its mail comes from.Yes: 0.4/0.4
- MTA-STS, so mail to it can't be quietly downgradedFrom my DNS checks.Yes: 0.2/0.2
- DNSSEC on its domainFrom my DNS checks.Yes: 0.2/0.2
- Website on HTTPS with HSTSFrom my website checks.Yes: 0.2/0.2
Account security 0.25 of 0.5
- Two-step sign-inYes: 0.25/0.25
- PasskeysNot checked yet: 0/0.25
Transparency 0.5 of 0.75
- A security contact (security.txt or a security page)Yes: 0.25/0.25
- A transparency report, or a published policy on government requests SourceYes: 0.25/0.25
- A published security audit, or a bug bountyNot checked yet: 0/0.25
Fair dealing 0.25 of 0.5
- You can export all your mailYes: 0.25/0.25
- You can cancel onlineNot checked yet: 0/0.25
Support 0.25 of 0.5
- A way to reach a person, listed on its website SourceYes: 0.25/0.25
- A public status pageNot checked yet: 0/0.25
Something missing or wrong? Suggest an edit with a link to the provider's own page.
Plans
3 plans
Light
- Paying yearly
- €1 a month, paid yearly (€12)
- Storage
- 2 GB
- Own domains
- Only in family accounts
- Email addresses
- 3 @mailbox.org aliases
- Also includes
- Calendar and address book, limited support, 1-year minimum term
Standard
- Paying monthly
- €4 a month
- Paying yearly
- €3 a month, paid yearly (€36)
- Storage
- 20 GB mail, 10 GB drive
- Own domains
- Yes
- Email addresses
- 25 @mailbox.org aliases, 50 on your own domains
- Also includes
- Office, video calls, family accounts, 25 disposable addresses
Prices as listed when I checked, before any tax. Dollar and euro prices are what the provider charges. Tap a plan to see what's included.
Before you sign up
5 of 7 checked
- Taking your email with you
- Unknown Suggest an edit
- How to cancel
- Unknown Suggest an edit
- Refunds
- You top up credit in advance; credit already paid in can't be refunded, so only pay in what you'll use Their page ↗
- Minimum term
- Light: 1 year minimum. Standard and Premium: 1 month Their page ↗
- Price when it renews
- No automatic card renewal: you load credit, get reminders before it runs out, or set up a SEPA direct debit Their page ↗
- After you close your account
- Your address is protected from re-registration for 90 days (Light), at least 1 year (Standard) or at least 2 years (Premium) Their page ↗
- Getting help
- Light: contract questions only. Standard: Monday to Friday, usually within 48 hours. Premium: priority within 24 hours, plus phone Their page ↗
Taken from mailbox.org's own pages. Policies change, so check their page before you pay.
Reviews
Trustpilot 4.1
Trustpilot
4.1 out of 5
From 228 reviews, checked 22 October 2026
Read the reviews on Trustpilot ↗
These are other people's ratings, taken from each site on the date shown. They don't change my stars, which come only from the facts.
From members
No member reviews of mailbox.org yet. If you've used it, yours could be the first.
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Features
12 of 22 offered, 8 still to check
- Your own domain✓ Yes
- Works in any mail app (IMAP)✓ Yes
- Calendar and contacts✓ Yes
- Open source✓ Yes
- White label (resell as your own)No
- Two-step sign-in✓ Yes
- PasskeysUnknown Suggest an edit
- PGP encryption✓ Yes
- Password-protected email to anyone✓ Yes
- Catch-all address✓ Yes
- Filters and rules✓ Yes
- Sieve filters✓ Yes
- Auto-reply✓ Yes
- Scheduled sendUnknown Suggest an edit
- Undo sendUnknown Suggest an edit
- Import from another provider✓ Yes
- Mobile appsUnknown Suggest an edit
- Desktop appUnknown Suggest an edit
- POP3✓ Yes
- CalDAV and CardDAV sync✓ Yes
- JMAPNo
- Tor (onion) addressUnknown Suggest an edit
- Pay with cash or crypto✓ Yes
- Export all your mail✓ Yes
- APIUnknown Suggest an edit
- AI featuresNo
- Single sign-on (SSO)Unknown Suggest an edit
Policies and contacts
3 of 5 found
- Privacy policy
- Unknown Suggest an edit
- Acceptable use policy
- Unknown Suggest an edit
- Terms of service
- mailbox.org/en/t-cs-cancellation-policy
- Report abuse
- ciso@heinlein-support.de
- Contact
- mailbox.org/en/contact
Track record
No known breaches
- Known data breaches
- ✓ None on record for mailbox.org
From public sources, last read on 31 October 2026: breaches from Have I Been Pwned (CC BY 4.0), which lists breaches of the provider's own site, not of every account that uses it; incidents as the provider reports them. None of this changes my stars.
Company and servers
Founded, owner, servers, uptime and blocklists
- Founded
- 2014
- Domain first registered
- 1998 (mailbox.org)
- Website hosted in
- Germany (Heinlein Support GmbH)
Only the website. Where your mail is kept is under Your data is kept in. - Mail servers
- Germany (Heinlein Support GmbH)
mx1.mailbox.org, mx2.mailbox.org, mx3.mailbox.org - Mail security records
- SPF soft (~all) · DMARC reject · MTA-STS ✓ · TLS reporting ✓ · DANE ✓
- Blocklists
- ✓ Not listed on the 12 lists I check, for 3 of its mail servers
- Name servers run by
- Heinlein Support GmbH
- DNSSEC
- ✓ Signed
- IPv6
- ✓ website and mail servers
- Website certificate
- DigiCert Inc · TLS 1.3
- Home page answered in
- 866 ms · HTTPS with HSTS
My automatic checks last ran on 31 October 2026. Server countries come from their IP addresses (IP geolocation by DB-IP), and big providers often run servers in many countries. Blocklists are the free lists that answer public look-ups.
mailbox.org home page
Screenshot
News
Latest headlines
- Loading the latest news…
All mailbox.org news · News by RSS
From mailbox.org's own blog and social accounts, and from tech and security news sites. I show the headline and its first few lines, and link to the full story where it was published.
Price history
3 prices since 1 June 2026
Cheapest plan per month, in pounds. Prices charged in dollars or euros are converted at a rough rate. Every change I find is added here with its date.
- 22 October 2026 €3 a month, yearly (from summer 2026), when I checked
- 1 September 2026 €3.00 (announced 15 July 2026)
- 1 June 2026 €2.50
Sources
2 sources
Similar providers
Suggest an edit
Spotted something wrong, out of date or missing about mailbox.org? Members can send me a correction, ideally with a link to the provider's own page. I check every one before anything changes.
Facts are checked against mailbox.org's own pages and dated. Offer links are referral links: I may earn a commission, and it never changes the stars or the order. How I make money