Outlook remembers up to 1000 email addresses you've used in the past, even if you have never stored them as Contacts. There are pros and cons to this behavior.
- The main benefit is that you caneasily retrieve email addresses you have used in the past, just by typing the first few letters of the email address.
- A major drawback is that Outlook's AutoComplete entries are static and cannot be updated, which can easily lead to email bouncebacks if you are not careful. This means that, despite changing a contact's email address several times, Outlook will always suggestthe first email address that was used.
Nevertheless, you can delete entries from the cache one at a time when necessary. Follow the steps below to accomplish this:
- Open Outlook.
- On the Home tab, click New Email.
- In the To: field, type the first three characters of the cached name to trigger the AutoComplete feature.
- Highlight the name or email address by hovering over it or using the Down Arrow key.
- Press Delete to remove the AutoComplete entry.
