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If you’ve picked Proton for your email, you probably want your calendar to play nicely with the rest of your setup too. Here’s the catch:

Every few years, someone declares email dead. First it was social media, then Slack, then AI. And yet, over 376 billion emails fly across the

In 2025 there were over 4.6 billion email users worldwide. The vast majority check their inbox on more than one device. You use your phone