If I need to send an identical message to 3 different people without copying them in & avoiding having to type 3 times-any idea how I can achieve that please?
When you put multiple recipients on a CC: line they can all see each others email addresses. If you use BCC: (blind carbon copy) you only need to send 1 email and they can not see each others email addresses.
If you let me know the email service or mail program that you're using I can let you know how to find the BCC: option for sending your email to multiple recipients.