Proton Mail uses end-to-end encryption and is very privacy conscious for its users. Their spam filters are accurate but can sometimes block friendly content. Setting up a filter is very straightforward.

  1. Log in to your ProtonMail account.

  2. Go to the Settings section.

  3. Click the Filters tab.

  4. Select ADD NEW FILTER under the Whitelist section.

  5. Enter the address and click SAVE.

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