Proton exposing email with Simplelogin if attach public key enabled
Privacy Guides Community [Unofficial]
May 18, 2026
Just wanted to warn everyone, I used to have proton set up to attach my PGP key to the message. However I didn’t notice that the name of the attachment is username@proton.me and is also sent when you use the alias send to address Not sure why they can’t a) remove the name of the email address from the attachement name and/or b not attach the key when sending via Simplelogin.
Just thought I’d warn anyone about this because I just ran into it. I rarely use the proton alias addresses to send emails so really no harm done
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