I received an email from a colleague that I replied to, and then minutes later had another email from a different colleague who (from the heading of the email below) had been BCC'd into the first email.
My first reaction was anger- possibly overshadowed by the fact both of these colleagues are incredibly irritating and are creating a huge amount of work load over something relatively insignificant. I don't think the second person realised that they had been BCC'd in when they included that email in their reply/forgot to delete the top of the original email.
I think BCC on work emails is unprofessional- AIBU?