Can the Protonmail catch-all address be used as a wildcard address? Where I could create a new on the fly email addresses to give out in public if needed? Like whatever@mydomain.com and that would show up in Protonmail and I could reply from that address?

Yes you can! I have tested it myself with my custom domain in Proton and anything I type @mydomain.com arrives in my inbox flawlessly

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Protonmail catch-all address

Privacy and Security Get Advice

b-9 February 24, 2024, 12:08am 3

Awesomeness! Thanks!

Thinking of switching from Tuta.

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