Fastmail vs Posteo: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Fastmail and Posteo side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Fastmail
Fast, private, and reliable email and calendar hosting for individuals and businesses.
Best for you if:
- • You want privacy focused email
Posteo
Green, secure, and ad-free email, calendar, and address book for maximum privacy.
Best for you if:
- • You want exceptional privacy with no tracking, ads, or user profiling
| At a Glance | Fastmail | Posteo |
|---|---|---|
Starts at | From $3/user/mo, billed monthly Standard plan | From $1.08/mo, billed yearly Posteo Email Account plan |
Category | Email Productivity | Email Security |
Rating | 4.5/5 G2 4.2 · Capterra 4.9 28 reviews | n/a |
Free plan | No | No |
Watch out for | n/a | Upgrades for additional storage |
Choose Fastmail or Posteo?
Choose Fastmail if
- You want privacy focused email
- You want good features
Choose Posteo if
- You want exceptional privacy with no tracking, ads, or user profiling
- You want strong encryption for all data, including stored emails, calendars, and address books
In-Depth Analysis
Fastmail
Fast, private, and reliable email and calendar hosting for individuals and businesses.
Fastmail's pricing is fair, especially for the 'Standard' tier at $5/user/month offering 100GB storage.
Strengths
- Pro: Privacy focused email
- Pro: Good features
- Pro: Custom domains
- Pro: Calendar included
- Pro: No ads
Weaknesses
- Con: Expensive vs Gmail
- Con: Limited integrations
- Con: Smaller ecosystem
- Con: Storage limited
- Con: No free tier
Key features
Posteo
Green, secure, and ad-free email, calendar, and address book for maximum privacy.
Posteo offers an incredibly fair and generous pricing model at just $1.08 per month for a comprehensive, privacy-focused email, calendar, and address book service.
Watch out
Upgrades for additional storage
Strengths
- Pro: Exceptional privacy with no tracking, ads, or user profiling.
- Pro: Strong encryption for all data, including stored emails, calendars, and address books.
- Pro: Environmentally friendly, powered by 100% real green energy.
- Pro: User-financed, ensuring independence from external investors and ad partners.
- Pro: Free migration service simplifies switching from other providers.
Weaknesses
- Con: Paid service with no free tier.
- Con: Storage upgrades beyond 4GB incur additional monthly costs.
- Con: Support is primarily via email, which might be slower for urgent issues.
Key features
Plans and prices: Fastmail vs Posteo
| Tool | Plans and prices | Source |
|---|---|---|
| Fastmail |
| fastmail.com/pricing read Oct 19, 2026 |
| Posteo |
| posteo.de read Oct 25, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Fastmail pricing and Posteo pricing.
Key Takeaways
Fastmail
- Choose if you want fast, private, and reliable email and calendar hosting for individuals and businesses
Posteo
- Choose if you want green, secure, and ad-free email, calendar, and address book for maximum privacy
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Only Fastmail has a published user rating (4.5/5 from 28 reviews); Posteo has none we can show.
- Entry prices are not ranked, they are charged on different bases: Fastmail $3/user/mo, billed monthly; Posteo $1.08/mo, billed yearly.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Fastmail and Posteo compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Only Fastmail has a published user rating (4.5/5 from 28 reviews); Posteo has none we can show. Entry prices are not ranked, they are charged on different bases: Fastmail $3/user/mo, billed monthly; Posteo $1.08/mo, billed yearly.
What are Fastmail and Posteo used for?
Fastmail: Fast, private, and reliable email and calendar hosting for individuals and businesses. Posteo: Green, secure, and ad-free email, calendar, and address book for maximum privacy.
What does Fastmail cost vs Posteo?
Fastmail's cheapest paid plan is Standard at $3/user/mo, billed monthly. Posteo's cheapest paid plan is Posteo Email Account at $1.08/mo, billed yearly. Prices read on the vendors' pricing pages, latest check Oct 25, 2026.
What's the main difference between Fastmail and Posteo?
Fastmail's main strength: privacy focused email. Posteo's main strength: exceptional privacy with no tracking, ads, or user profiling.