Definition

💡 An auto-fill email address is a feature in many web browsers and email clients. It suggests or assists with filling out the recipient's email address as you type them — based on previously stored contact information or addresses from past interactions.

Auto-fill is a handy feature that saves you time and reduces errors. It ensures frequently used email addresses are easily accessible without needing to be typed in full each time. It can remember email addresses from your contacts, recent emails, and sometimes even form submissions on websites.

How to Auto-Fill Email Address in Outlook

To enable auto-fill email addresses in Outlook, follow these steps:

Launch Microsoft Outlook on your computer.
Click on the New Email button in the top left corner of the screen.
In the To field, start typing the recipient's email address.
Use previously entered addresses. As you type, Outlook will suggest previously entered email addresses that match your typing.
Select from suggestions. Use the arrow keys or click on a suggestion to select it and autofill the rest of the email address.
Review and update suggestions:

To update the suggested email addresses, go to File → Options.
In the Outlook Options window, select Mail from the left pane.
Under Send messages, click Empty Auto-Complete List to clear previous suggestions.
Click OK to save your changes.

Auto-fill Email Address on iPhone

To use the auto-fill feature on your iPhone, follow these steps:

When composing an email in the Mail app, start typing the recipient's name or address in the To field.
As you type, your iPhone will suggest contacts from your address book to autofill the rest of the email address.
Tap on a suggestion to select it.

How to Delete Unwanted Auto-Fill Email Addresses in Yahoo Email

Here's how you can delete unwanted auto-fill email addresses in Yahoo Mail:

Removing contacts from auto-complete list

Sign in with your Yahoo credentials.
Click on the Contacts icon located on the right side of the Yahoo Mail dashboard. It looks like an address book.

Scroll through your contact list or use the search bar to find the unwanted email address. Click on the contact's name to open their details.
On the contact details page, click on the three-dot menu (More options) in the upper-right corner. Select Delete from the drop-down menu. When prompted, confirm that you want to delete the contact.

Removing Suggested Email Addresses

Sometimes, Yahoo Mail suggests email addresses that aren't actually in your contacts but are remembered from previous emails. To remove these:

Click on Compose to start a new email.
Begin typing the unwanted email address in the To field. When the unwanted address appears in the drop-down suggestions, hover over it.
An X should appear to the right of the suggested email address. Click the X to remove the email address from the suggestions list.

How to Delete an Auto-Populate Email Address in Gmail

Here's how to delete an auto-populate email address in Gmail:

Removing contacts from Gmail

Log into Gmail.
Access Your contacts. Click on the Google Apps icon (a grid of dots) in the upper-right corner of the Gmail interface. Select Contacts from the list of apps.

Use the search bar at the top to find the unwanted email address.
Once you locate the contact, hover on their name.
Click on the three-dot menu (more options) in the upper-right corner of the contact's details page.
Select Delete from the drop-down menu.

Confirm that you want to delete the contact when prompted.

Removing suggested email addresses

Sometimes, Gmail suggests email addresses that aren't actually in your contacts but are remembered from previous emails. To remove these:

Click on Compose to start a new email.
Begin typing the unwanted email address in the To field.
When the unwanted address appears in the drop-down suggestions, click it. Once it appears next to To, click it again, then hit Open detailed view.
Click the pencil icon and save this suggestion as a contact, then hit Trash and select Move to trash to delete it from your contacts. After that, the suggestion will not appear again.