Petervdv 🏳️🌈 The problem is: In german its always "Sehr geehrter" (Male) or "Sehr geehrte" (Female), we're pretty precise in our Language at such things.
If you translate "Dear reader", there would be the two Variants "Sehr geehrter Leser" (Male), "Sehr geehrte Leserin" (Female).
To avoid this, you must use the much less formal salutation "Hallo $Forename" ( = Hello).
I think thats fine within bunq, but not for "official" documents which you have to hand over to authorities, for example