am having an issue when i send email i have to click (to) then i choose manually from address book the address that i want to sent it to , before it was automatically showing me options to whom i want to send by just entering the first letter Using Classic Outlook on Windows for personal email, calendar, and contact management Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question. Anonymous 2023-08-09T07:11:29+00:00 Hello Noor Al Kasadi, Thank you for posting this case in Microsoft Community! As mentioned, you want to fix automatically showing me the emails list in address book while you are entering the first letter of the email address in To, CC or BCC lines in message window. I would like to cooperate with you working on this case. To clarify this case, this is related to the Auto-Complete List that will list suggested email addresses automatically. The AutoComplete list is also known as the nickname cache , which generated automatically when you send email messages in Outlook. As you mentioned, it was working fine before in your Outlook for Windows but not working now. For my suggestion, to narrow down this issue, please try following steps to resolve this case if possible: You may go to Outlook Web and test if working or not. If working fine, it is related to your Outlook client. Please check Microsoft article as shared: The Outlook AutoComplete list **A.**On the File menu, select Options . B. Select the Mail tab. **C.**Scroll approximately halfway down until you see Send messages . Make sure that the Use Auto-Complete List to suggest names when typing in the To, Cc, and Bcc lines box is checked. D. If not checked, please enable this options and click OK to save it. ( Please note that if you click Empty Auto-complete List options, it will clean your Auto-Complete cache. ) **E.**After enabled Auto-complete list and empty Auto-Complete list, please send one test email to your colleague by manually type entire email address. Once email sent, please try to send one more email to the same user and check if that colleague's name auto-appear or not. If you need further assistance, please feel free to let me know, I will keep assisting you. Your understanding and patience will be appreciated. Thank you! 0 comments No comments Hello Noor Al Kasadi, Thank you for posting this case in Microsoft Community! As mentioned, you want to fix automatically showing me the emails list in address book while you are entering the first letter of the email address in To, CC or BCC lines in message window. I would like to cooperate with you working on this case. To clarify this case, this is related to the Auto-Complete List that will list suggested email addresses automatically. The AutoComplete list is also known as the nickname cache , which generated automatically when you send email messages in Outlook. As you mentioned, it was working fine before in your Outlook for Windows but not working now. For my suggestion, to narrow down this issue, please try following steps to resolve this case if possible: You may go to Outlook Web and test if working or not.

If working fine, it is related to your Outlook client. Please check Microsoft article as shared: The Outlook AutoComplete list **A.**On the File menu, select Options . B. Select the Mail tab. **C.**Scroll approximately halfway down until you see Send messages . Make sure that the Use Auto-Complete List to suggest names when typing in the To, Cc, and Bcc lines box is checked. D. If not checked, please enable this options and click OK to save it. ( Please note that if you click Empty Auto-complete List options, it will clean your Auto-Complete cache. ) **E.**After enabled Auto-complete list and empty Auto-Complete list, please send one test email to your colleague by manually type entire email address. Once email sent, please try to send one more email to the same user and check if that colleague's name auto-appear or not. If you need further assistance, please feel free to let me know, I will keep assisting you. Your understanding and patience will be appreciated.