Some unnamed addressees Crossword Clue

 The answer to the crossword clue "Some unnamed addressees" is BCC. This stands for "blind carbon copy". It is a way to send an email to multiple people without them knowing who else has received the email.

When you send an email with BCC, the other recipients will not see the email addresses of the other recipients. This is useful if you want to send an email to a group of people without them knowing who else is in the group.

For example, you could use BCC to send an email to a group of colleagues about a project without them knowing who else is working on the project.

I hope this helps! Let me know if you have any other questions.