BCC Not working correctly

Norton350

I sent an email to two people, one of whom was sent in field BCC, both recipients were visible to the BCC field receiver, this is not how BCC should work..

Black Mamba

@Norton350

test carried out it works correctly:
- the main To recipient doesn't see the BCC recipients, only the CC recipients
- the BCC recipients see the main To (and CC) recipient, but not the other BCC recipients

Tipp:

- to hide this, you need to send the message to your own To e-mail address and all other recipients to BCC

Norton350

maybe a misunderstanding, I am using the new email web gui that we now have to pay for(which I also find really annoying tbh). Previously (free web interface), this worked fine..

Anyway, as I mentioned, it WAS visible to the recipient in BCC, I know this because they replied to me and I could see the header containing the non-BCC email address that was the "to" recipient..

sent header: (repeated characters are masking)

To xyz@abc.ch Blind copy Brigitte LLLLL

Reply back to me from the Blind Copy recipient:

Wow.

Amazing photos 😊

Von: xyz@abc.ch >
Gesendet: Montag, 30. September 2024 12:08
An: xyz@abc.ch [<--- this is the "to" field, it should NOT be visible to the BCC recipient!]
Betreff: Comedy wildlife

https://www.comedywildlifephoto.com/gallery/finalists/2024_finalists.php

r00t

Hi @Norton350

While it is possible, that the old bluewin mail service did this, this is IMO not a "must" for BCC. The primary goal of the BCC is to hide the BCC recipients from To: and CC: - not the other way around.

If you want to hide both recipients of the email, add your own email to the "To:" field and both of the recipients to the "BCC" field.

I also tested this with multiple different mail servers (mailcow, and outlook.com), and both of them behave exactly this way.

Best,

r00t

Norton350

ok, thanks for explaining the difference in behaviour.