I haven’t been able to find any information about this online, so I’m posting it here.
I’ve been receiving emails TO addresses like @icloud.com.
I’ve checked all my hide-my-email aliases (including the archived ones) and I don’t own these addresses so I cannot disable them.
I’m wondering if anyone else has run into this issue?
Strictly speaking, mail clients can’t show the BCC field — technically they don’t exist on the receiving server, the receiving server only knows what address (yours) to be delivered to — so they only display the typical From, To, and CC fields. It’s one of those quirks of email standard and client implementations, I guess.