Four months on Fastmail with three custom domains; rock solid performance and staff like it.
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A score out of 100. Negative and mixed reviews take points off, and so does having only a few reviews, so a handful of glowing reviews can’t beat a product many people like.
Easy migration from Gmail or Google Workspace and human support, though the calendar feels clunky.
What customers love, and what they don’tWhat customers noticed
Customer reviews (236)
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A paying user for 10+ years hosting a family domain, with advanced features and DNS management.
Moved to Fastmail from buggy IMAP at a DNS host; finds Fastmail follows email standards well.
Used Fastmail for almost 19 years and Purelymail for two; Purelymail is basic and Fastmail hard to leave.
Fastmail has been their primary email provider for over 20 years, calling it a long-lived, solid service.
Two years on Fastmail and it has handled everything needed after ditching Microsoft and Google.
Switched from Proton to Fastmail, finds it fast and reliable with no ads or upsells and no regrets.
Fastmail customer since 2004, briefly on Gmail, and returned because Fastmail is best for custom domains.
Runs three businesses on Fastmail for years with one issue that support fixed almost immediately.
No issues with Fastmail in roughly five years; calendar is clunky but flexibility outweighs it.
About ten years on Fastmail and happy, though worried about US hosting.
Returned to Fastmail after two years on Proton, which had reliability and deliverability issues.
Finds Fastmail's organisation far easier than Proton for a real inbox, and less buggy with a rock-solid app.
Opened their Fastmail account in March 2014 and renews happily every year without ever having an issue.
A Fastmail user for 22 years who has found very little to complain about.
Uses Fastmail for small business and personal email, avoiding the hassle of IP reputation problems.
Uses Fastmail masked emails, hosted websites and calendars for years and loves the service.
Has used Fastmail on a paid plan for years for its Gmail-like labels and features.
Has had Fastmail on and off for about ten years; steady and migrating back was super easy.
Very long-time Fastmail personal user who finds it really good and also uses it as a backup for work.
Ten-plus years on Fastmail for personal and professional use; considers email, contacts and calendar best in class.
Fastmail has never let them down and they have no plans to leave.
Has tried several providers and will not leave Fastmail at $6 a month.
Says Fastmail's $5 a month is worth it, with practical tools and no downtime.
Dropped alias forwarders that missed important mail; Fastmail built-in aliases delivered everything without issue.
No email service is perfect but Fastmail executes well enough that they have not switched in a decade.
Uses Fastmail as a catch-all for several domains with many aliases; IMAP and iOS app are fast and reliable.
Used Fastmail for years because it is private, reliable and fast, with no ads in the inbox.
Runs 100+ users on Fastmail for 15+ years and has never looked back.
Three years on Fastmail with a custom domain, never regretted it.
About two years on Fastmail with no problems; everything just works.
Tried Proton briefly then stayed with Fastmail, finding it solid and just works.
A few years on Fastmail with a positive experience.
Started on Proton and switched to Fastmail with no issues and a happy family.
Fastmail masked emails work perfectly; only two companies ever questioned them.
Finds Fastmail quite good, reliable and affordable.
Calls Fastmail pretty great, not cheap but great.
Has used Fastmail for seven years since leaving Google and absolutely loves it.
Custom domain emails hosted on Fastmail for years; great service.
A Fastmail customer for many years who says it just works.
Finished the first year on Fastmail and renewed for three years.
Has used Fastmail for years with no complaints.
Experience with Fastmail has not changed in over two decades.
With Fastmail since 2003 and confirms they have stood the test of time.
Has used Fastmail for many years, cheap but not free so staff can be paid.
Has used Fastmail for about ten years and has always been happy with it.
Has been a Fastmail customer for over 10 years and calls it the email service.
Uses Fastmail for themselves and clients for years and calls it solid.
Used Fastmail for years for 20+ staff with shared folders and it worked great.
Finds Fastmail plenty reliable with no concerns after using it for ages.
Has used Fastmail for 20+ years and finds it as solid as Outlook web.
With Fastmail for almost a decade and loves the service.
Fastmail has been working well with custom domains.
Has used Fastmail for 20 years and is happy with it.
About nine years on Fastmail with essentially zero issues.
Five years with Fastmail and never had any problems.
Many years with Fastmail and never had any issues.
Happy with Fastmail for email.
Few years on Fastmail with occasional incidents but as reliable as others, with humans answering support.
Uses Fastmail and has seen no downtime in a couple of years.
Fifteen years on Fastmail without issues, with apps that integrate well and make aliases easy.
Moved family email from Gmail a few years ago and the service works so well they do not think about it.
Uses Fastmail to power an LLC with several team members and calls it rock solid.
Fastmail customer for over three years who renewed for another three because no alternative was good enough.
Chose Fastmail in 2007 as a paid second email service and still prefers it for support.
Fastmail customer for around 20 years with no calendar issues, and delivery problems are always tracked on the status page.
Uses Fastmail extensively in the US and finds it absolutely perfect.
Uses Fastmail at about 4.17 dollars per user with 30GB and calls it rock solid.
About a year on Fastmail without SMTP delays or sent-folder issues.
Pays for Fastmail and finds it great and compatible with everything.
Works great on iOS and web with three custom domains and eight mailboxes plus 1Password integration.
Common questions about Fastmail
What do customers say about Fastmail?
Customers consistently describe it as reliable, fast and easy to use, with simple migration from Gmail or Google Workspace and strong spam filtering. Many have used it for a decade or more and say support is human and helpful. Minor complaints include a clunky calendar and limited calendar sharing outside Fastmail.
Is Fastmail worth it?
Of the 200 reviews with a clear verdict, 88% are positive, 8% mixed and 5% negative. The praise mentioned most is reliable. The most common complaint is email delivery problems.
What do people like about Fastmail?
The praise reviewers mention most: reliable (59 reviews), easy to use (45 reviews) and easy migration (23 reviews). For example: Finds Fastmail's organisation far easier than Proton for a real inbox, and less buggy with a rock-solid app.
What are the most common complaints about Fastmail?
The complaints reviewers mention most: email delivery problems (1 review), poor support (1 review) and renewal price hike (1 review). For example: Opened tickets about mail providers not receiving their custom domain emails and a billing issue; nine days later neither was resolved, and authenticated mail was still landing in spam.
What does the signal score of 95 mean?
It's how well reviewed Fastmail is, out of 100. Negative and mixed reviews take points off, and so does having only a few reviews: a service needs plenty of them, compared with the most-reviewed services here, to reach the high 80s and 90s. It's worked out from reviews only, needs at least 5 of them, and updates as new ones come in.
What are the specs of Fastmail?
Category: Email hosting. Free plan: No.
How does Fastmail rank?
#1 in Best Email Hosting 2026, ranked by real customer reviews.
Where do these Fastmail reviews come from?
236 are quotes from Reddit and YouTube, each linked to the original. Customer reviews are checked for spam before they appear. Every review, written here or quoted, is read as positive, mixed or negative.