How to Migrate from Gmail to ProtonMail (Without Breaking Everything)

Migrating off Gmail is one of those things people put off because it feels overwhelming. It doesn’t have to be. The key is treating it as a gradual transition, not a single cutover event.

Here’s a plan that works for most people.

Phase 1: Set Up ProtonMail (Day 1)

Create a ProtonMail account. Don’t close Gmail, don’t forward everything yet — just create the account.

Choose your address carefully. If you’re considering a custom domain (more on this later), you can start with a @proton.me address and add your domain later — email can be migrated. If you know you’ll use a custom domain, you might as well set it up from the start with a paid plan.

Configure 2FA immediately. Use an authenticator app, not SMS.

Generate a recovery code and store it in a password manager. This is non-negotiable — if you lose your password and recovery code, the account is gone.

Phase 2: Set Gmail to Forward to ProtonMail (Days 1–7)

The fastest way to start using ProtonMail for current incoming mail is to forward Gmail to ProtonMail.

In Gmail: Settings → See all settings → Forwarding and POP/IMAP → Add a forwarding address. Add your ProtonMail address, verify it, then set Gmail to “Forward a copy of incoming mail to [ProtonMail] and keep Gmail’s copy in the inbox.”

Now your ProtonMail inbox starts receiving all your incoming Gmail. You can manage it from ProtonMail while Gmail acts as a backup.

Caveat on forwarding: Mail forwarded from Gmail to ProtonMail is not end-to-end encrypted between Gmail and Proton. Gmail handles the forwarding, so Gmail can read it. This is a transition measure, not a final state — it gets you using ProtonMail day-to-day while you complete the transition.

Phase 3: Import Historical Email (Optional, Week 1–2)

If you want your old Gmail history in ProtonMail, use Proton’s Easy Switch.

In ProtonMail: Settings → All Settings → Import via Easy Switch → Connect Google Account. You authorize it with your Google account (OAuth — you don’t give Proton your password). Proton imports your messages, contacts, and optionally calendar.

Be aware: the import can take hours or days for large mailboxes. Large attachments count against your ProtonMail storage quota. Start with the Inbox and last 12 months if you want to be selective.

If you don’t care about historical email, skip this step. Most people find they reference old email less than they expect.

Phase 4: Update Your Most Important Accounts (Weeks 1–4)

This is the bulk of the work. You need to update your email address at every service that has your Gmail address.

Start with the highest-stakes accounts:

• Banking and financial services
• Health insurance, medical providers
• Work-related services (if this is a personal account migration)
• Password manager account
• Domain registrar (if you have domains)

Then move to frequently used services:

• Shopping accounts (Amazon, etc.)
• Streaming services
• Social media
• Government services (IRS, state agencies, etc.)

Use a password manager to work through this systematically. Most good password managers show you all the accounts you have saved — use that as your checklist.

Tip: When you update each account’s email address, also update the password to something unique if it isn’t already. This is a good opportunity to do both at once.

Phase 5: Handle Newsletters and Subscriptions (Ongoing)

For newsletters and marketing email, rather than updating them to your ProtonMail address, this is a good moment to introduce email aliases. Set up SimpleLogin or Addy.io and give each newsletter its own alias that forwards to ProtonMail.

For newsletters you actually read: create an alias, update the subscription, and organize the alias.

For newsletters you don’t read: unsubscribe. Don’t migrate spam to your new inbox.

Phase 6: Notify Personal Contacts (Week 2–4)

Send a short note to people you actually communicate with — family, close friends, colleagues — letting them know your new email address.

A simple message works: “I’m switching my primary email to [new address]. Please update your contacts.” No need to explain the privacy motivation unless you want to.

Phase 7: Reduce Gmail Activity (Month 1–3)

As you update accounts and notify contacts, fewer and fewer emails should arrive at Gmail. Eventually, Gmail becomes a low-activity account that occasionally catches something old.

At this point, you can:

• Keep the Gmail account but check it less frequently
• Turn off the Gmail-to-ProtonMail forwarding (since almost nothing valuable should arrive there)
• Set up an auto-reply in Gmail pointing to your new address for stragglers

Don’t delete the Gmail account unless you have specific reasons to. Keeping it dormant provides a safety net if you missed updating something important. Many people keep the account around indefinitely but simply don’t use it.

Phase 8: Consider a Custom Domain (Optional)

If you want an email address that isn’t tied to any specific provider, a custom domain is worth considering. Registering yourdomain.com and using it through ProtonMail means you can switch email providers in the future without changing your address again.

Domain registration costs $10–20/year depending on the registrar and TLD. ProtonMail custom domains require a paid plan.

Setup involves adding DNS records at your registrar (MX, SPF, DKIM, DMARC). ProtonMail’s setup wizard walks you through each one.

Common Mistakes to Avoid

Closing Gmail immediately: Don’t. There will always be a service you forgot to update. Keep Gmail accessible for at least 6 months after migration.

Using a storage-hungry import on the free tier: ProtonMail’s free tier is 1 GB. If you have decades of Gmail with large attachments, importing everything will hit the limit. Import selectively or upgrade first.

Forgetting about Google Workspace: If you have any accounts that use “Sign in with Google,” you can’t easily migrate those — they’re tied to Google authentication, not just your Gmail address. You’ll need to set up new credentials with each of those services.

Not updating recovery email addresses: Many services use your email as a recovery method for passwords. If that email becomes inactive, you lose account recovery. Check that new accounts use your ProtonMail address as the recovery email.

Timeline Expectation

For an average person with a normal digital life, a complete migration takes 4–12 weeks. The first week is account setup and forwarding. The next few weeks are methodically updating accounts. The last stage is the long tail of occasional services you forgot.

Don’t rush it. A careful migration is better than a fast one that leaves things broken.