What "changing your email address name" actually means

When you want to change your email address name, you are usually doing one of two different things, and they work very differently. The first is changing your display name — the friendly name that appears when you send an email, like "Sarah Johnson" instead of "sjohnson47@gmail.com". The second is changing the actual email address itself, like moving from an old address to a new one. Most people can change their display name in seconds. Changing the address itself takes longer and affects where people send you mail.

This guide covers both. Start by figuring out which one you need, because the steps and time involved are completely different.

Key Takeaways

  • Your display name (the friendly name people see) can be changed in your email settings in under a minute, and old emails keep their original sender name.
  • Changing your actual email address requires creating a new address and forwarding mail from the old one, which takes setup time but protects you from missing messages.
  • Gmail, Outlook, Yahoo, and Apple Mail each have their own display name settings, usually found in account settings or preferences.
  • If you are changing your actual address, set up forwarding before you tell people about the new one, so nothing gets lost in the transition.
  • Some email providers let you add multiple addresses to one account, which is faster than fully switching if you only need a second address.

Changing your display name in Gmail

Open Gmail and click the gear icon in the top right corner, then select "See all settings". Go to the "Accounts and Import" tab. Under "Send mail as", you will see your current display name. Click "edit info" next to it. Type in the name you want people to see when you send them emails. Click "Save changes".

The new name takes effect on emails you send from that point forward. Emails you already sent will still show the old name, because the sender information is locked in when the email leaves your account. If you have multiple email addresses set up in Gmail, you can give each one a different display name.

Changing your display name in Outlook or Microsoft 365

Sign in to your Outlook account online. Click the gear icon and select "View all Outlook settings". Go to "Mail" and then "Compose and reply". Under "Default from address", you can see your current display name. Click "Edit" next to your name. Type the new name and click "Save".

If you use Outlook on your desktop or phone, the display name syncs from your online account, so you do not need to change it in multiple places. The change appears on new emails only.

Changing your display name in Yahoo Mail or Apple Mail

In Yahoo Mail, click the account icon in the top right, select "Account info", then go to "Account security". Find "Name" and click "Edit". Type your new name and save it. In Apple Mail on an iPhone or Mac, go to Settings (or Mail preferences), find your email account, and look for "Name" under account details. You can edit it directly there.

Both services update the display name across all devices once you save the change. The update may take a few minutes to sync if you have the app open on multiple devices.

Changing your actual email address

If you need to switch to a completely different email address — not just change how your name appears — the process is more involved. You cannot rename an existing email address; you have to create a new one and move your mail over. Start by creating a new email account with the address you want. Then set up mail forwarding on your old account so that incoming messages automatically go to your new address.

In Gmail, go to Settings > Forwarding and POP/IMAP > Add a forwarding address. Enter your new email address. Gmail will send a confirmation email to the new address; click the link in that email to confirm. Once confirmed, select "Forward a copy of incoming mail to [new address]" and choose whether to keep or archive the original. In Outlook, go to Settings > Mail > Forwarding and enter your new address the same way.

After forwarding is set up, send a message to your important contacts with your new address. Keep the old account active for at least a month so you catch any mail that arrives late. After that period, you can decide whether to keep the old account open (in case someone still uses it) or close it.

Adding a second email address to your existing account

If you do not want to fully switch addresses but need a second one, most providers let you add an alias or secondary address to your current account. In Gmail, go to Settings > Accounts and Import > Send mail as, and click "Add another email address". You can receive mail at both addresses and send from either one without setting up forwarding.

Outlook and Yahoo offer similar features. This approach is faster than switching entirely and means you do not have to close your old account or worry about forwarding delays. The downside is that you are managing two addresses in one inbox, which can get confusing if you use them for different purposes.

What happens to your old emails when you change your address

If you are only changing your display name, nothing happens to your old emails — they stay in your account exactly as they are. If you are switching to a new address entirely and setting up forwarding, your old emails stay in the old account. You can read them or leave them there as an archive. Most email providers let you read all your old mail as a file if you want to keep a backup before closing the account.

If you are using an alias or secondary address, all your mail goes to the same inbox, so there is no separation between old and new messages.

Frequently Asked Questions

Can I change my email address back if I change my mind?

If you changed only your display name, yes — just go back to settings and type the old name. If you switched to a new address and closed the old account, you cannot reopen it yourself; you would have to contact your email provider's support team, and they may not be able to restore it depending on how long ago you closed it.

Will people see my old display name on emails I already sent?

Yes. The sender name is recorded when the email leaves your account, so changing your display name does not change how old emails appear in someone else's inbox. Only new emails will show the updated name.

What if I forget to set up forwarding before I stop using my old address?

You can set up forwarding at any time, even months later. Go back into your old account settings and add the forwarding address. Mail that arrives after you set it up will forward, but anything that came in while forwarding was off is still in the old account.

Can I have two email addresses that both receive mail in the same inbox?

Yes, using an alias or secondary address feature. In Gmail, Outlook, and Yahoo, you can add a second address to your account and receive mail at both without setting up forwarding. You send and receive from one inbox.

Do I need to tell my email provider when I change my display name?

No. Changing your display name is done entirely through your account settings and does not require contacting support. If you are switching addresses and need help with forwarding, your provider's support team can walk you through it, but the basic setup is self-service.