Two things make business email feel professional and safe: the address (yours, at your domain) and the inbox (private, encrypted, not mining your mail for ads). Proton Mail gives you both, and connecting it to your own domain is more approachable than it sounds.
You'll do this once. After that it just works, quietly, on every device you own.
Why bother
A message from hello@yourbusiness.com lands differently than one from yourbusiness123@gmail.com. It tells a customer you're established. It also means the address belongs to you, not to a free service, so if you ever change providers, the address comes with you.
Proton adds privacy on top: your mail is encrypted, based in Switzerland, and isn't scanned to sell you things. For a lot of businesses, especially anyone handling client or health information, that peace of mind is the whole point.
The address is your brand. The inbox is your privacy. Getting both in one move is why this is worth an afternoon.
The three-part setup
Every setup, whatever the provider, is the same three parts:
- Prove the domain is yours. You add a short verification code to your domain settings so Proton knows you own it.
- Point the mail records. A handful of settings (called MX, SPF, DKIM and DMARC) tell the internet to deliver your mail to Proton and help it not land in spam. Proton shows you exactly what to paste.
- Create your addresses.
hello@,accounts@, one per team member — as many as your plan allows.
Those record names look cryptic, but you're only ever copying values Proton gives you into your domain's dashboard. No typing from scratch, no guessing.
Reading it everywhere
Once the domain is verified, you read your mail in three places:
- The web. Sign in at Proton in any browser.
- Your phone. The Proton app, so business mail sits alongside everything else.
- A desktop app like Apple Mail or Outlook. Using the settings shown in the panel above (Proton Bridge handles the encryption behind the scenes).
Set up the phone and one computer and you're covered for day-to-day work.
Common snags
Two things trip people up. First, changes take a little time: domain settings can take an hour or two to spread across the internet, so if mail isn't flowing immediately, wait before worrying. Second, the anti-spam records matter: skip SPF and DKIM and your perfectly legitimate mail may land in customers' junk folders. Proton flags anything missing with a clear tick or cross.
If domain settings and mail records aren't how you want to spend an afternoon, I set this up for clients as part of getting a business online. See Setting up an online business from scratch, or get in touch and I'll handle it end to end.