Add an icon for Mailbox.org (secure and eco-friendly email inbox from Germany)

[jl9013284]

Hi Team! Could you please add an icon for Mailbox.org?

Their website is at https://mailbox.org/
Source of icon: https://commons.wikimedia.org/wiki/File:Mailbox.org_logo.svg

When scanning their QR code with Tofu, the account issuer shows up as Example.
Thank you!