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Posteo vs Fastmail

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Posteo compared with Fastmail
DetailPosteoFastmail
What it doesGreen, Secure, Ad-free Email Service Email and calendar made better
StageEstablished Established
Founded2009 1999
Based inDE AU
Pricing modelsubscription subscription
Pricing1 EUR per month with 4 GB storage, upgradeable. Includes email account, calendar, address book, and free support. Individual plan from €4.67/month (€168 for 36 months), Duo from €7.47/month (€268.80 for 36 months), Family from €10.27/month (€369.60 for 36 months). Business plans: Basic €2.80/user/month, Standard €4.67/user/month, Professional €8.40/user/month (36-month commitment). Free 30-day trial available.
Key features
  • 4 GB email storage, upgradeable
  • Two-factor authentication (TOTP)
  • Encrypted email, calendar and address book
  • Calendar synchronization via CalDAV
  • Address book synchronization via CardDAV
  • PGP and S/MIME encryption
  • Self-developed migration service
  • Crypto mail storage for entire mailbox
  • Anonymous payment option
  • Multiple colors and Dark Mode
  • Email with 60 GB storage (Individual plan)
  • Calendar integration with sync from Google and iCloud
  • Masked Email to hide real address
  • Scheduled send for delayed message delivery
  • Snooze messages and set reminders
  • Pin important messages to inbox top
  • Undo send functionality
  • Private memos on messages
  • Offline access for mail, calendar, and contacts
  • Custom domain email addresses
What makes it different
  • 100% ad-free with no user tracking or data trading
  • Powered by 100% green energy from Green Planet Energy
  • Anonymous signup and payment without personal data collection
  • Comprehensive encryption at the touch of a button for laypeople and professionals
  • Self-developed encrypted migration service with no third-party involvement
  • Private service with no ads or data mining
  • 20+ years of independent service without lock-in
  • Advanced open standards and email innovation leadership
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)73 no change since last check81 no change since last check
Trust Flow (Majestic)3666
Citation Flow (Majestic)5056
Referring domains (Majestic)35098009

8 details filled in for both companies.

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