Related Clues:

• Included, in a way
• Kept in the e-loop
• Included in an email, in brief
• Kept in the know via email
• Kept in the loop, in emails
• Looped in, on Gmail
• Added to a thread, say
• Included on an email, briefly
• Brought into a discussion
• Listed below a recipient, maybe
• Included in an email thread
• Looped in, on email
• Looped in on an email
• Looped into a thread
• Kept in the loop over email