BCC not visible in Mongo

[leonidiy2000]

Hello,

I am using POST /users/{user}/mailboxes/{mailbox}/messages endpoint, and have a question regarding the bcc field. I don't see the field anywhere in mongo, even though I have it on the payload. I tried sending it both in the 'root' of the request, next to from/to/cc (like in documentation) and in headers object. On message fetch later on bcc field is an empty array.

Could you please help me with that, maybe I am doing something wrong.