Fastmail
Worth it
Confidence: Medium
Buy if you want fast, private paid email with your own domain and open standards.
Comparison
Fastmail vs G2
Fastmail lands on Worth it, and G2 lands on Depends.
G2
Depends
Confidence: Medium
Buyers shortlisting B2B software should use G2 free as one input, cross-checked against Capterra or TrustRadius.
| Compare | Fastmail | G2 |
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | Privacy-minded Gmail refugees | B2B software buyers shortlisting tools |
| Who it's not for | Anyone wanting end-to-end encrypted, zero-knowledge mail | Vendors without five-figure budgets |
| Privacy | Active bug bounty and published security program; not zero-knowledge; one 2024 CVE on record.⁵ | No public security page found; UpGuard reports no phishing; G2's own DPA references a past data breach. |
| Support quality | Email-only support; no phone or chat. | Trustpilot and BBB complaints about G2's service |
| Public sentiment | Users praise the speed, clean UI, and search; a minority report mixed long-term experiences. | Buyers find G2 useful for breadth, but sentiment on G2's own service skews negative on Trustpilot and Redditors weigh it against Capterra and Trustpilot. |
| Biggest gotcha | Not zero-knowledge: reviewers flag weaker message protection than Proton-class rivals.² | Vendor contracts are negotiated and opaque; budget five figures annually before committing. |
Pick Fastmail when
- Privacy-minded Gmail refugees
- Freelancers wanting custom-domain email
- Multi-account email jugglers
- Standards fans needing IMAP/SMTP
When Fastmail is not a fit
- Anyone wanting end-to-end encrypted, zero-knowledge mail
- Anyone wanting free email
- Teams needing phone support or enterprise SLAs
- Buyers wanting a full Google Workspace-style suite
Pick G2 when
- B2B software buyers shortlisting tools
- Teams wanting peer reviews pre-demo
- SaaS vendors building review-based social proof
- Marketers using buyer-intent data
When G2 is not a fit
- Vendors without five-figure budgets
- Anyone expecting unbiased star ratings
- Consumer-product shoppers . B2B only
- Buyers wanting deep technical vetting
Sources
review
- Fastmail Review | Not as secure as competitorsproprivacy.comreview
- Fastmail Review for 2026 . CyberInsidercyberinsider.comreview
- Fastmail Pricing vs MailAfinitimailafiniti.comnews
security
- Security Issue Reporting | Fastmailfastmail.comsecurity
- Fastmail customer support policiesfastmail.helpofficial
- IMAP, POP, and SMTP - Fastmailfastmail.helpofficial
- Fastmail Cost & Reviews - Capterracapterra.com.aureview
- FastMail 9 Months Review - Flameeyes's Weblogflameeyes.blogreview
- Cheaper alternatives to Fastmail - Hacker Newsnews.ycombinator.comnews
- Fastmail Pricing - officialfastmail.comofficial
- G2 (company) . Wikipediaen.wikipedia.orgnews
- G2 . product siteg2.comofficial
- Sell G2 . Planssell.g2.comofficial
- Sell G2 . Review Generationsell.g2.comofficial