Fastmail vs Mailfence Comparison

Feature	Fastmail Visit →	Mailfence Visit →
Overview
Rating	6.8	7.0
Pricing	$5.00/moIndividual (monthly) $5.00/moIndividual (annual) $8.00/moDuo (annual) $11.00/moFamily, up to 6 (annual) Show billing detailsHide billing details Individual (monthly): US$5/mo Individual (annual): US$60 for 12 months Duo (annual): US$96 for 12 months Family, up to 6 (annual): US$132 for 12 months	$0.00/moFree $2.50/moBase (individual, annual) $3.50/moEntry (individual, annual) Show billing detailsHide billing details Free: $0 Base (individual, annual): $2.50/mo billed yearly Entry (individual, annual): $3.50/mo billed yearly
Free tier	Paid only	Limited free tier Show detailsHide details 1 GB total (500 MB email + 500 MB documents), no custom domain, Knowledge Base-only support.
Established	1999	1999
Platforms	WindowsmacOSLinuxAndroidiOS	AndroidiOS
Privacy
Jurisdiction	Australia Show detailsHide details Fastmail Pty Ltd, PO Box 234, Collins St West, VIC 8007, Australia, ABN 31 142 646 580, headquartered in Melbourne. Also operates Fastmail US LLC, a satellite office at 1429 Walnut Street, 12th Floor, Philadelphia, PA 19102, USA. Independent and employee-owned — not venture-backed or acquired by a larger group.	Belgium Show detailsHide details ContactOffice Group sa, Avenue Franklin Roosevelt 47b, B-1050 Brussels, Belgium, company number BE 0466.241.584. Gag orders are not legally possible in Belgium — Mailfence's warrant canary states it has never received a US National Security Letter or FISA court order, and could disclose a valid Belgian court order to the affected user.
Independent security audit	None on record	None on record
Source code	Partly open source	Closed source
Zero-access encryption	No	No
Intra-provider E2EE	No	No
External PGP	Manual import	Native
Past data breach	No	No
Telemetry	On unless you opt out	On unless you opt out
Features
Hosting	Cloud	Cloud
Custom domain support	Yes	Yes
Aliases	Unlimited	Unlimited
Anti-spam approach	Connection-level blocking of known spam-sending infrastructure before a message is accepted, followed by content-based scoring of accepted mail with a threshold that routes high-scoring messages to Spam; the filter adapts per user from Report spam / Not spam / delete / archive actions. Documented on the vendor's own Stop Spam help page as analysing message content server-side, consistent with a provider that holds the encryption keys and makes no zero-access claim.	Incoming and outgoing messages are automatically analysed by anti-spam, anti-virus and anti-abuse checking routines; the provider's own security-analysis documentation states this applies at the transport layer and that OpenPGP-encrypted message bodies are never visible to the server.
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