Should You Choose Encrypted Mail or IMAP?

Leaving Gmail creates two separate choices: who hosts your mailbox, and which app you use to read it. The key decision is whether you should choose an encrypted mail provider with its own app or a provider using standard IMAP, which works with many mail clients.

Both routes can move your inbox off Google’s servers. They differ mainly in how much protection, flexibility and convenience they offer. Your old @gmail.com address cannot move with you, whichever path you take, so a gradual migration matters as much as the provider you select.

Encrypted mail keeps the provider out

Proton Mail is the pragmatic default in this group. It is encrypted, based in Switzerland and has a free tier. Paid plans support custom domains, and the same account can also replace Google Calendar and Google Drive. It suits someone who wants a straightforward starting point and may eventually move several Google services together.

Tuta is another freemium option. It is leaner and cheaper, and it encrypts everything, including subject lines. That makes it a fit for someone who values broader mailbox encryption and is comfortable using the service’s own app.

The limitation is app choice. Proton Mail and Tuta store the mailbox encrypted and work through their own apps, so they do not plug into every third-party client. Their protection also changes how recovery works: your password protects access to encrypted data, so recovery details deserve the same care as the mailbox itself.

Encrypted mail is therefore the clearer choice when keeping stored messages private matters more than freely switching among Android email apps.

IMAP gives you client freedom

Mailbox.org, Posteo and Fastmail use standard IMAP. That means you can read their mail through clients such as Thunderbird for Android or FairEmail rather than being tied to one provider app.

Mailbox.org is a paid German provider. Posteo is also German, costs €1 a month, has no ads and permits anonymous sign-up. Fastmail is polished, fast and strong on custom-domain support. Fastmail is not end-to-end encrypted: it is private by policy, not by math.

The clients serve different readers. Thunderbird for Android is free and open source, was formerly known as K-9 Mail, and works with any IMAP provider. FairEmail is freemium, blocks tracking pixels and offers extensive settings; its core is free, with some extras available as a paid unlock.

This route fits people who want to choose or change their mail app independently of the host. Its trade-off is that stored mail is protected by the provider’s policy rather than end-to-end encryption by default.

Do not make self-hosting email your first project. Deliverability is a part-time job. Moving to a provider first leaves self-hosting available for other services without making email migration unnecessarily demanding.

How to choose between the two

1. Decide how you want to read mail. Pick Proton Mail or Tuta if using a dedicated app is acceptable. Pick an IMAP provider if choosing between Thunderbird for Android, FairEmail or another compatible client matters more.
2. Choose your protection model. Encrypted providers are designed to keep the stored mailbox encrypted. IMAP services offer wider compatibility but rely on provider policy rather than end-to-end encryption by default.
3. Check whether you need a custom domain. Proton Mail, Tuta, Mailbox.org and Fastmail support custom domains on paid plans. A personal domain gives you an address that does not have to change with the provider.
4. Match the service to your wider setup. Proton Mail is convenient if you also want its Calendar and Drive replacements. An IMAP provider is a better fit if an open mail-client workflow is the priority.
5. Start with the free or lowest-cost suitable option, then verify that everyday mail arrives reliably before committing further.

Move without losing important messages

Open the new account and install either its dedicated Android app or your chosen IMAP client. Keep Gmail installed until mail has arrived reliably for a couple of weeks.

Next, move old messages. Proton’s Easy Switch can import Gmail messages, contacts and calendars after you sign in to Google. For an IMAP provider, export an MBOX archive with Google Takeout and copy it using Thunderbird on a computer.

Turn on Gmail forwarding so new messages also reach the new address. Change the address first on important accounts: your bank, government services, phone carrier and password manager. Handle shopping sites and newsletters as their forwarded messages appear. Tell family and work contacts about the change and add the new address to your signature.

After forwarded mail has been quiet for a few months, decide whether to retain Gmail as a backup login or delete it. Deleting the account also removes other Google services tied to it, so make that final decision only after checking what still depends on the account.

For every category beyond email, see the complete guide to Google app alternatives.