Hi Purchiron,
Good day. Thank you for posting in our forum.
We need to determine why you are having issues sending emails with Bcc. For better assistance, we would like to know more about this concern. Kindly answer the following questions:
- Is this the first time that you encountered this issue?
- Can you send us a screenshot of the message you are getting when sending emails with Bcc and contact list/group emails? Note: Please do not include any personal information.
- If you put the address in the To field, will the same problem happen?
In addition, please try the following troubleshooting methods:
Method 1: Remove and re-add your account in Outlook.
Method 2: Perform an online repair via Control Panel. Kindly follow the instructions through this link.
Method 3: Please **** delete the address from the remembered list of addresses that auto populates, then manually type the address in.
Method 4: Kindly please try to create a new Outlook profile and add the account.
Do reply if you need further assistance, we will be happy to help you, thanks.
Best regards,
Nerissa