Convenient webmail interface
- “List” or “conversation” view
- Upload multiple files
- Sender identities
- Drag and drop
- Fast search
- HTML emails
- Many other settings possible
- Comprehensive system for encryption and data protection with numerous features – e.g. all saved data can be encrypted at the click of a button, two-factor authentication (TOTP), inbound encryption with S/MIME or OpenPGP.
- Free, personal support
Our team answers your questions by email and supports you with problems.
- 100% open source
- 2 GB storage (can be increased)
Your email account comes with 2 GB storage. This can be increased up to a maximum of 20 GB. Each additional gigabyte costs 0.25 EUR/month. You can have an unlimited number of subfolders.
- Attachments of up to 50 MB
- Email on all devices (IMAP/POP3)
With Posteo, you can use email synchronised with all smartphones, tablets and PCs (using IMAP). Many programs can determine the required settings automatically (e.g. iOs, Thunderbird, Outlook).
- Highly efficient spam and virus filter
- Customised filters
You can filter by content or sender, pre-sorting your emails.
- Two alias addresses included (up to 20 for an additional charge of 0.10 EUR per alias per month). Alias addresses are individually encrypted at Posteo using your password, to protect your privacy.
With the Posteo migration service you can securely bring up to three external email accounts including their folder structures across to Posteo. You can decide whether you would like to copy the entire content of your previous email account or just selected folders.
- Change of address order
Our email collector brings newly-arriving emails across from your previous account every 10 minutes.
- Forwarding and autoreply
- Country codes
Your main email address ends in “posteo.net”. Many other country codes are available for use as aliases, including posteo.org, .de, .co.uk and many more.
Save email addresses, phone numbers, postal addresses, birthdays and many other details in the address book.
You can centrally encrypt your Posteo address book (with AES) and thereby use it securely on all devices. It is encrypted with your password – then even we have no access to your data.
- Address book on multiple devices
Contacts can be synchronised with most smartphones, tablets and PCs using CardDAV standard.
For selected email services (AOL, Gmail, GMX, Hotmail, iCloud, Office 365, Outlook.com, WEB.DE und Yahoo!) you can transfer your address book to Posteo at the click of a button. For other providers, address books can be imported as a vCard or csv file.
You can arrange your contacts into groups.
Each contact can be viewed with a photo.
- Calendar on multiple devices
Calendar entries can be synchronised with most smartphones, tablets and PCs using CalDAV standard.
Your previous calendar can be imported as an .ics file.
The Posteo calendar can display the birthdays of the contacts in your address book, if you so desire.
- Share the calendar
Share your calendar with others or view their calendars. This does not work if you have activated encryption.
You can centrally encrypt your Posteo calendar (with AES) and thereby use it securely on all devices. It is encrypted with your password – then even we have no access to your data.
- Merge external calendars
In our webmail calendar, you can merge up to five external calendar feeds.
Receive reminders for your appointments.
- 100% green energy from Greenpeace Energy:
Posteo is 100% operated with power from Greenpeace Energy. This applies not only for our servers, but also for all of our office space.
Posteo does business sustainably. We are free of debts and loans. There are no investors. Posteo has only one source of funds – the fees paid by its users. This allows us to work independently and with privacy orientation.
- Social responsibility as an employer:
Posteo engages its employees with permanent contracts. To make work and family more compatible, we allow flexible work hours and various part time options.
- Free, organic-vegetarian lunch:
Posteo offers its employees a daily, organic-vegetarian lunch. The costs for this (including our own chef) are completely covered by the company.
- No flights:
To protect the climate, Posteo does not use flights whatsoever for its business.
- Additional holidays for train trips:
Posteo offers all employees additional holidays for using climate-friendly train trips instead of flying during private holiday trips.
- Business accounts with socially-aware GLS Bank
GLS Bank uses the money exclusively to finance ecological and socially-meaningful projects.
- Savings with Umweltbank
Our savings are invested with the Umweltbank. The bank uses these funds to support environmental projects.
- Energy-efficient hardware:
We use energy efficient hardware both in the office and for our servers.
- Optimised server sizes:
Our systems are custom-sized for our needs and grow with us.
- Office and Posteo Lab:
Both our office and the lab are set up in line with sustainability criteria (FSC wood, recycled paper and furniture).
- Free bicycle repair:
Posteo employees can have their bike repaired by a mechanic free of charge.
We regularly donate to NGOs active in the fields of environment and privacy, among others. Our donation activity is published on our "Donations" page.
- Efficient programming:
We’re prudent with resources through optimised design of data-intensive processes.
Privacy and encryption
- Anonymous signup:
You do not have to enter any personal information during signup (such as your name or address).
We do not collect user data, nor do we possess traffic data (such as IP addresses) connected to any accounts. Processes and functions are always conceived with the principle of data-efficiency.
- Anonymous payment:
All of our payment methods are anonymised using a payment system developed by Posteo. We do not link payment information with email accounts.
- TLS-encrypted access:
Accessing your data fundamentally occurs with encryption. (TLS with PFS for IMAP, POP3, webmail, CardDAV and CalDAV).
- TLS-encrypted transmission:
Protects emails and metadata during transmission, as long as the other email server also supports it (TLS with PFS).
- TLS-sending guarantee
This security feature protects you from sending emails to insecure systems. If you activate the TLS-sending guarantee, we will only send your email if it can be sent to the recipient over an encrypted connection. Otherwise, the email will not be sent and you will receive a notification from us.
- Encrypted hard disks:
Our servers’ hard disks are AES encrypted, to prohibit data-theft and unauthorised access.
- Crypto mail storage:
Encrypts all saved email data (content, attachments and metadata) at the click of a button.
- Calendar and address book with encryption:
The calendar and address book can be encrypted with your password, if desired. In this case only you have access to your data.
- Inbound encryption with S/MIME or OpenPGP:
With our inbound encryption, you can encrypt all newly-arriving emails with your public S/MIME or OpenPGP key.
- Set up of alias addresses
You can set up aliases – additional email addresses for your account. This means you can use different addresses for different purposes. Alias addresses are individually encrypted at Posteo using your password, to protect your privacy.
- No data trade or circulation:
No data trade or circulation (unless required by law)
- Daily backups:
We undertake daily backups of all accounts and retain these for seven days.
- IP stripping:
Our server replaces your IP with ours when you send an email from Posteo webmail or an external email program.
- Highly efficient spam and virus filter
- Servers located in a highly secure German data centre
- No use of tracking tools
- Website does not save IPs
- Two-factor authentication (TOTP)
Additionally secure your Posteo account using our two-factor authentication. The feature can be set up on all devices with the help of free apps (e.g. on smartphones, tablets, desktops and on special hardware such as a YubiKey).
- Ad-free webmail:
Posteo webmail is ad-free. We send you no advertising emails or advertising newsletters whatsoever.
- Ad-free website:
Our web presence is also completely ad-free. We do not use any tracking tools.
- No advertising partners:
Our service is not financed by advertising. This means we are not dependent on advertisers and can operate sustainably and independently.
- Highly efficient spam and virus filter:
Our spam filter keeps your account free of advertising.
Credit is added to your account in advance. Monthly fees for the services you are using are deducted from this amount. If your balance gets low, you will be reminded to add credit.
Posteo account including all features described: 1 EUR per month.
Additional storage: 0.25 EUR per GB per month
Additional alias addresses: 0.10 EUR per month (two are included)
Additional calendars: 0.10 EUR per month (three are included)
You can pay by PayPal, bank transfer, credit card or in cash. Personal information that we receive in connection with bank transfers, PayPal and credit card payments is not linked to your account. With Posteo, your payment is always, therefore, anonymous.
You can transfer some of your credit to a voucher, to give to others. Vouchers can be used, for example, to add credit to family members’ accounts.
- Termination (monthly):
No unnecessary contracts – you can terminate effective within the month: termination requires 14 days’ notice. Payment occurs in advance (prepaid). If you terminate, we can refund your remaining credit or donate it to an NGO.