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TL;DR: I moved my business email from Gmail to Proton Mail for one reason — I wanted my inbox to run on a subscription I pay, not on a data-driven ad business — and I have stayed because it works. Encryption is the headline, but the day-to-day experience is simply a clean, calm inbox. It is not for everyone: power users of Google’s ecosystem give up real conveniences. See Proton Mail’s plans here.
Email is the one account everything else hangs off: password resets, invoices, client conversations, legal mail. For years I ran all of that through a free Gmail account without thinking about it. This review is about why I eventually moved my business email to Proton Mail, what genuinely improved, and what I gave up — because something is always given up.
What is Proton Mail?
Proton Mail is an encrypted email service from Proton, a Swiss company that started at CERN and now builds a whole privacy suite: Mail, Calendar, Drive, VPN, and the Pass password manager. Messages between Proton users are end-to-end encrypted, everything stored on their servers is encrypted so that Proton itself cannot read it, and Swiss privacy law applies on top.
The business model is the actual point. Google gives you Gmail for free because you fit into an advertising machine; Proton charges a subscription and has no advertising business. Neither model is evil, but they produce different products — and for my business mail, I prefer to be the customer, not the audience.
Proton Mail pricing
Proton does not show its prices consistently across regions, so rather than quote numbers that may be outdated by the time you read this, here is how the plans are structured — check current pricing on their site before deciding.
| Plan | Storage | Addresses | Custom domain | Best for |
|---|---|---|---|---|
| Free | Up to 1 GB | 1 address | No | Trying it out, personal use |
| Mail Plus | 15 GB | 10 addresses | 1 domain | Personal email, done properly |
| Proton Unlimited | 500 GB | 15 extra addresses | 3 domains | Bundling Mail, VPN, Drive, and Pass |
Business plans with per-user pricing exist as well. For a solo business, Mail Plus or Unlimited covers it: the custom domain support is what turns Proton from “private inbox” into “professional business email”. Compare the current plans and prices on Proton’s site.
What Proton Mail does well
Privacy you do not have to think about. Encryption happens automatically. Emails to other Proton users are end-to-end encrypted, and you can send password-protected messages to people on any provider. For client work — contracts, financial details — that is a feature I actively use, not a checkbox.
A calm, ad-free inbox. No promotions tab curated by someone else’s algorithm, no “smart” features quietly reading along. After years of Gmail, the quiet is noticeable.
Custom domain support that behaves. Pointing my domain at Proton was a one-time DNS job, and features like catch-all addresses and auto-forwarding cover the practical business needs. Ten addresses on Mail Plus means hello@, invoices@, and press@ without extra accounts.
The suite is genuinely useful. Because I already pay for mail, Proton Calendar, Drive, VPN, and Pass came along on the Unlimited bundle. Replacing three or four separate subscriptions with one privacy-focused stack is the quiet financial argument for Proton.
Apps and clients are covered — on paid plans. The mobile apps are solid, and the Bridge tool lets desktop clients like Outlook, Thunderbird, and Apple Mail talk to Proton despite the encryption.
Where Proton Mail falls short (and who should not switch)
Search is weaker by design. When your mail is encrypted so the provider cannot read it, the provider also cannot search it as effortlessly as Gmail does. Full message search exists but takes setup and feels slower. If you treat your inbox as a searchable archive of ten years of everything, this is the trade-off you will feel most.
The free plan is a trial, not a home. One address, around 1 GB, no custom domain, no desktop clients. Fine for testing, too tight for real use — budget for a paid plan or do not bother switching.
You leave an ecosystem. Gmail’s deep hooks into Google Docs, Meet, and half the internet’s login flows are genuinely convenient. Proton integrates with far less. If your workflow lives inside Google Workspace, moving only your email will create friction, not remove it.
Migration is a project. Proton has import tools that work, but redirecting years of accounts, logins, and newsletters to a new address takes a few evenings of unglamorous admin, whoever you switch to.
If none of the privacy arguments move you and Gmail has never annoyed you: stay. Switching email providers for lukewarm reasons rarely sticks.
Who Proton Mail is for — my verdict
Proton Mail fits freelancers, bloggers, and small business owners who want professional email at their own domain and prefer paying a known price over being part of an ad model. That is the position I was in: this blog is my business, and my whole blogging setup runs calmer knowing the inbox at the center of it is not also a data source.
One important clarification: Proton is your inbox, not your newsletter tool. Sending broadcasts to subscribers still requires a proper email marketing platform — I explain that side in my ultimate guide to email marketing. The two solve different problems and coexist fine.
FAQ
Is Proton Mail really private?
As private as mainstream email realistically gets. Mail between Proton users is end-to-end encrypted, stored mail is encrypted so Proton cannot read it, and the company operates under Swiss law. Note that email to someone on Gmail still lands on Google’s servers on their side — no provider can fix the other end of the conversation.
Is Proton Mail free?
There is a free plan with one address and about 1 GB of storage — good for testing the interface. For a custom domain, more addresses, desktop client support, and serious storage you need a paid plan; check current pricing on Proton’s site as it varies by region and billing period.
Can I use my own domain with Proton Mail?
Yes, from the Mail Plus plan up: one custom domain on Mail Plus, three on Unlimited. Setup is a standard DNS change, and features like catch-all addresses make it practical for business use.
Proton Mail or Gmail — which should I use?
Gmail if you live inside Google’s ecosystem and value integrations and effortless search above all. Proton if you want your business email on a subscription model with encryption by default. I use Proton for business mail precisely because it is the account everything else depends on.
Does Proton Mail work with Outlook or Apple Mail?
Yes, through Proton’s Bridge application, which is available on paid plans. Bridge sits between your desktop client and Proton’s encryption. The mobile apps need no extra setup.
The bottom line
Moving my business email to Proton Mail traded some Google convenience for a subscription, real encryption, and an inbox that belongs to me and my clients — a trade I would make again. If your email is the foundation of your business too, head over to Proton Mail to compare plans and start with your custom domain from day one.