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StartMail vs Fastmail for Business

In short: StartMail wins on privacy, they tie on price, and they tie on features. The full comparison is below, last checked 22 October 2026.

StartMail or Fastmail for Business: which should you choose?

  • StartMail is the better pick if you want more built in, including PGP encryption as well as password-protected email to anyone.
  • Go for Fastmail for Business if you'd like a cheaper plan, at $5 per user a month ($4.17 yearly); more space for your mail: 50 GB; and a company with a longer track record (since 1999).
FeatureStartMailFastmail for Business
Overall4.03.0
Privacy3.52.0
Price3.53.5
Features5.05.0
Cheapest planPersonal
$4.99 a month
Standard
$5 per user a month ($4.17 yearly)
Free planNo (7-day trial)No
Storage20 GB50 GB
Your own domain✓ 1✓ Up to 100
End-to-end encryptionOptional (PGP or encrypted storage)No
Company based in Netherlands Australia
Your data is kept in Netherlands EU (Amsterdam) for UK customers, with a US replica and US backups
Founded20141999
Free trial7 days free30 days free
Funded by advertisingNoNo
Works in any mail app✓ IMAP and SMTP✓ IMAP and SMTP
Calendar and contacts✓ Yes✓ Yes
AliasesUnlimited throwaway addressesYes
Open-source appsNoNo
Sign up without IDNoNo
White labelNoNo
Reader offerOffer 50% offOffer 10% off your first year, plus a free trial of up to 30 days
Last checked22 October 202622 October 2026

Want to add another? Open this in the compare tool.

Where they differ

  • Cheapest plans: StartMail Personal, $4.99 a month. Fastmail for Business Standard, $5 per user a month ($4.17 yearly).
  • StartMail has no free plan; Fastmail for Business has no free plan.
  • Space: StartMail gives 20 GB of storage, Fastmail for Business 50 GB of storage.
  • Data location: Netherlands for StartMail, EU (Amsterdam) for UK customers, with a US replica and US backups for Fastmail for Business.
  • The companies sit under different laws: StartMail in Netherlands, Fastmail for Business in Australia.
  • On encryption, StartMail offers optional encryption (PGP or encrypted storage), whereas Fastmail for Business doesn't encrypt mail end to end.
  • Aliases: StartMail offers unlimited throwaway addresses, Fastmail for Business yes.

StartMail and Fastmail for Business: your questions

Is StartMail more private than Fastmail for Business?

StartMail scores 3.5 out of 5 for privacy and Fastmail for Business 2.

Is StartMail cheaper than Fastmail for Business?

Fastmail for Business is cheaper. Its Standard plan is $5 per user a month ($4.17 yearly), against $4.99 a month for StartMail's Personal. Check the renewal price before you pay, as some first-year prices go up.

Can I use my own domain with StartMail or Fastmail for Business?

Yes, both do. StartMail: 1 domain on its cheapest plan that allows one. Fastmail for Business: Up to 100.

Where is my email stored with StartMail and Fastmail for Business?

StartMail keeps it in the Netherlands. Fastmail for Business keeps it in the EU (Amsterdam) for UK customers, with a US replica and US backups.

Recent price changes

No price changes for either since 22 October 2026. I check regularly and add any change here with its date.

The latest headlines: StartMail news · Fastmail for Business news.

Alternatives to StartMail and Fastmail for Business

StartMail vs mailbox.org · Fastmail for Business vs mailbox.org · StartMail vs Posteo · Fastmail for Business vs Posteo · StartMail vs Proton Mail · Fastmail for Business vs Proton Mail

Moving your email

Moving to StartMail · Moving from StartMail. Or see all my switching guides.

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