Posteo vs Soverin (2026): which should you pick?
As of Nov 13, 2026, Posteo grades higher than Soverin: 2.0 against 1.8 out of 4.0.
Checked Oct 6, 2026 and Nov 13, 2026 · graded Oct 10, 2026 and Nov 13, 2026 by ToolGPA
Posteo grades higher on value for money. Soverin grades higher on features. They get the same grade on the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Soverin
Paid private email hosted in Europe, on your own domain
Which one is for you
Pick Posteo if
- Fits if you want an ad-free mailbox that you pay €1 a month for directly
- Works for people who'd rather sign up without a name, address or phone number
Look elsewhere if
- Skip it if you want email at your own domain, because custom domains are not supported
- Not for you if you like to try before you pay, as there's no free plan and no trial account
- Too light for anyone who wants cloud storage with their mailbox, since Posteo offers none
- Watch out: you prepay in euros with a €12 minimum top-up, and extra storage is €0.25 per GB a month
- Tight if you want an app of its own: there's no phone or desktop app, so you set up IMAP yourself
Pick Soverin if
- Fits if you want a cheap private mailbox on your own domain and no ads
- Works for people who'd rather pay a few euros than be the product
Look elsewhere if
- Skip it if you want to try before paying, as there's no free plan or trial
- Skip it if you want end-to-end encryption, which it doesn't offer
- Tight if you want monthly billing, as it's billed once a year
- Watch out: sign-up needs a mobile phone number
- Watch out: prices are in euros and include VAT
How we grade them
| 2.0GPAPosteoFair | 1.8GPASoverinWeak | |
|---|---|---|
| Value for money | A€1 a month, prepaid, for 4 GB of storage, 3 aliases, 3 calendars, an address book and notes, where this category's middle is $8 and its cheapest quarter starts at $4. Extra storage is €0.25 per GB a month, and the minimum top-up is €12, about a year's fees. | C3.25 euros a month billed annually (39 a year) with VAT included, a little above the cheapest quarter of what email services charge. |
| Free plan and trial | FNothing is free. There's no free plan and no trial account, so you pay before you see the inbox. Credit is refunded in full if you cancel within the first month, but a refund isn't a trial. | FNothing free. There is a 30-day money-back guarantee, which isn't a trial, and domains aren't refunded. |
| Features | CThe private basics: everything you store can be encrypted, PGP and S/MIME work in webmail through plug-ins, calendars and contacts sync over CalDAV and CardDAV, and login takes passkeys. The gaps are its own, though: no custom domains at all, no cloud storage, and 4 GB to start. | B25 GB mailbox, unlimited aliases, your own domain, calendar and contact sync, no ads or scanning. The listing shows no gap in the hosting job. |
| Ease of use | CNo rating on record. One account at one price means nothing to choose and no name or address to hand over, but PGP in webmail means installing the Mailvelope plug-in, and using your own mail app means setting up IMAP yourself. | CNo store rating on record. You connect your own mail app, and sign-up needs a phone number. |
| Platforms and integrations | CWebmail and a web app, and no phone or desktop app of its own on record. It does open in Thunderbird or Outlook over IMAP and POP3, with CalDAV and CardDAV for calendars and contacts and notes that sync with Apple Notes. | CA web service that works in Apple Mail, Outlook, Thunderbird and Airmail. No apps of its own. |
| Best for | a private mailbox for €1 a month | paid private email on your own domain |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Posteo and Soverin. How we grade
Price against what you get
Posteo starts at about $1.12 a month and scores 2.0 out of 4 on features, ease of use and platforms. Soverin starts at about $3.63 a month and scores 2.3.
Soverin scores higher, and starts $2.51 a month higher: the question is whether the extra is worth that to you. Of the other email apps on the chart, 17 score higher than Posteo for less, and 17 score higher than Soverin for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Posteo is open source and end-to-end encrypted, according to its own site.
- Posteo also covers notes.
At a glance
| Posteo | Soverin | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | €1 per month, prepaid (minimum top-up €12) | €3.25 per month, billed annually (€39 a year) |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Posteo e.K. | Soverin B.V. |
| Price read from | posteo.de | soverin.com |
| Checked | Oct 6, 2026 | Nov 13, 2026 |
Worth knowing
Posteo
- Custom domains are not supported; addresses use Posteo's own domains such as posteo.de, posteo.net or posteo.com.
- There is no free plan and no trial account, though credit is refunded in full if you cancel within the first month.
- Payment is prepaid in euros, with a minimum top-up of €12, which is about one year's fees.
- It is used through webmail and a web app or through other mail apps over IMAP or POP3, and it offers no cloud storage.
Soverin
- Billed once a year only: there is no monthly plan and no free trial, only a 30-day money-back guarantee on the mailbox (domains are not refunded).
- Prices are in euros and include VAT.
- Not end-to-end encrypted: the vendor describes connection encryption and encrypted disks, not encrypted mailboxes.
- Signing up needs a mobile phone number, which the vendor says is used only for password resets.
Key features
Posteo
- One flat-priced account
- €1 a month covers email with 4 GB of storage, 3 aliases, 3 calendars, an address book and notes. Storage can grow to 75 GB and aliases to 25 for small monthly add-on fees.
- Encryption of stored data
- Crypto mail storage encrypts saved email, attachments, metadata and notes, and the address book and calendar can each be encrypted with your own password at the press of a button.
- End-to-end encryption in webmail
- PGP through the Mailvelope plug-in and S/MIME through Posteo's own plug-in work inside the webmail interface, and incoming mail can be encrypted with either.
- Sign-up without personal details
- Registration asks for no name or address, payment data is kept separate from email accounts, and credit can be added by bank transfer, PayPal, credit card or cash.
- Calendar, contacts and notes
- Calendars sync over CalDAV and can be shared read-only by ICS link, contacts sync over CardDAV, and notes can be synchronized with Apple Notes.
- Passkeys and login protection
- Login supports two-factor authentication (TOTP), up to 5 passkeys and up to 5 app passwords. An extra protection mode blocks access from external programs over IMAP.
Soverin
- No ads or scanning
- The vendor says it does not scan emails, track readers or sell data, and that it removes the sender's IP from message headers.
- Your own domain
- Connect a domain you already own for free, or register a new one through Soverin for a yearly fee.
- Unlimited aliases
- Aliases are free, and the vendor also lists multiple mailboxes.
- Works in other mail apps
- The vendor lists Apple Mail, Outlook, Airmail and Thunderbird, plus Roundcube and Aurora in the browser.
- Calendar and contact sync
- Calendar and contacts sync with the mailbox, and 25 GB of storage is included.
Plans
Posteo
Email account€1
per month, prepaid from account credit
4 GB of storage, 3 aliases, 3 calendars, address book and notes. Extra storage costs €0.25 per GB a month and extra aliases or calendars €0.10 each.
Soverin
Private mailbox€3.25
per month, billed annually (€39 a year)
25 GB mailbox, unlimited aliases, calendar and contact sync. Connecting a domain you own is free; a new .nl, .eu or .com domain adds €13 to €18 a year.
Common questions
Which is cheaper, Posteo or Soverin?
As of Nov 13, 2026, Posteo is cheaper to start with: about $1.12 a month, against about $3.63 a month for Soverin. Posteo starts at €1 per month, prepaid (minimum top-up €12), and Soverin starts at €3.25 per month, billed annually (€39 a year).
Which has a free plan, Posteo or Soverin?
As of Nov 13, 2026, neither Posteo nor Soverin has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.