Paid Proton 4+ years but recent outages of several hours took down Mail, Calendar and Drive, so they consider migrating.
79signal
295reviewsi
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.
54% Positive13%33% Negative
Most customers find it reliable for email with a custom domain, an easy switch from Gmail or Google Workspace, and good spam filtering.
What customers love, and what they don’tWhat customers noticed
Customer reviews (295)
Add your reviewShowing 13 reviews mentioning outages Show all
The iOS app is slow with typing lag, there were two outages, and deals are advertised in the desktop app.
Moved their work email MX to Tuta after 20 minutes of Proton downtime and find the Windows and Android clients slow.
Stopped using Proton for business after the domain setting changed on its own and urgent emails went missing.
Emails did not reach Proton during an outage while setting up a bank account, forcing a Gmail and a return to M365.
Six months in, Proton Mail has been down 3-4 times in the past month, discovered when checking for a client reply.
Since signing up in December this is the third mail problem noticed and they want to know if outages are common.
Third major outage in three months for a premium service costing $120 a year.
After paying about $200 for Duo and moving off Bitwarden, NordVPN and Gmail, Proton was down twice in a couple of months.
Brought four paid users and two small companies to Proton and regrets it after repeated email outages.
Fully embraced Proton regrets it because an outage takes down the whole suite without offline access.
A Proton server blackout locked them out of Mail, Pass and Drive at once, so they split services across providers.
Proton went down minutes before a job interview, the second time it left them in the dark at a crucial moment.
Common questions about Proton Mail
What do customers say about Proton Mail?
Most customers find it reliable for email with a custom domain, an easy switch from Gmail or Google Workspace, and good spam filtering. Complaints include weak body-text search, occasional outages, slow support and development, and constant prompts to upgrade. A few report mail from Proton addresses landing in spam.
Is Proton Mail worth it?
Of the 249 reviews with a clear verdict, 54% are positive, 12% mixed and 33% negative. The praise mentioned most is reliable. The most common complaint is poor support.
What do people like about Proton Mail?
The praise reviewers mention most: reliable (47 reviews), easy migration (36 reviews) and good deliverability (24 reviews). For example: Left Proton for Microsoft after two years and called it a mistake, returning in 2025 with their custom domain.
What are the most common complaints about Proton Mail?
The complaints reviewers mention most: poor support (20 reviews), outages (14 reviews) and upsells (8 reviews). For example: Account created via temp email was locked for suspicious activity on first use until another email was added.
What does the signal score of 79 mean?
It's how well reviewed Proton Mail 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 Proton Mail?
Category: Email hosting. Free plan: Yes.
How does Proton Mail rank?
#2 in Best Email Hosting 2026, ranked by real customer reviews.
Where do these Proton Mail reviews come from?
295 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.