How to Set Up Yahoo Mail in Outlook

Yahoo Mail connects to Microsoft Outlook through either OAuth authentication (a browser sign-in page) or manual IMAP configuration with an app password. Newer versions of Outlook support OAuth, which means you can add Yahoo using your regular password without generating an app-specific code. Once your Yahoo account is connected, personalize your outgoing emails with a professional signature in Outlook.

Key Takeaways

• Newer Outlook versions (Microsoft 365, Outlook 2021/2024) support Yahoo OAuth — just enter your email and sign in through the Yahoo page that appears automatically.
• For older Outlook versions or when OAuth fails, use IMAP server imap.mail.yahoo.com on port 993 (SSL) and SMTP server smtp.mail.yahoo.com on port 465 (SSL).
• If manual IMAP setup is required, generate a 16-character app password from Yahoo Account Security — your regular Yahoo password will not work.

What Are the IMAP and SMTP Settings for Yahoo Mail?

Yahoo Mail uses imap.mail.yahoo.com for incoming mail and smtp.mail.yahoo.com for outgoing mail, both requiring SSL encryption and either OAuth or an app password for authentication.

Setting	Value
Incoming Server (IMAP)	imap.mail.yahoo.com
IMAP Port	993
IMAP Encryption	SSL/TLS
Outgoing Server (SMTP)	smtp.mail.yahoo.com
SMTP Port	465 (SSL) or 587 (STARTTLS)
SMTP Encryption	SSL/TLS or STARTTLS
Username	Your full Yahoo email address (including @yahoo.com)
Password	App password (manual setup) or regular password (OAuth)
SMTP Authentication	Required

These settings also work for @ymail.com and @rocketmail.com addresses, which are Yahoo Mail aliases. For SMTP configuration details across all providers, see our Outlook SMTP settings guide.

How Do I Add Yahoo Mail to Outlook With OAuth (Recommended)?

In newer Outlook versions, enter your Yahoo email address and sign in through the Yahoo authentication page that appears — no app password or manual server settings needed.

1. Open Microsoft Outlook and click File > Add Account.
2. Enter your full Yahoo email address (e.g., yourname@yahoo.com).
3. Click Connect.
4. A Yahoo sign-in page opens in your browser.
5. Enter your Yahoo password and complete any verification steps.
6. Click Agree to authorize Outlook to access your Yahoo Mail.
7. Outlook configures all settings automatically — click Done.

This method works with: – Microsoft 365 Outlook (current versions) – Outlook 2021 and Outlook 2024 – New Outlook for Windows

According to Microsoft Support, OAuth is the recommended method because it is more secure and does not require app passwords.

Important: Always add Yahoo accounts using File > Add Account from within Outlook. Do not use the Windows Control Panel Mail applet — it does not support OAuth and will force you to use an app password.

How Do I Generate a Yahoo App Password for Outlook?

If OAuth does not work or you use an older Outlook version, generate a 16-character app password from Yahoo Account Security to use instead of your regular password.

1. Sign in to your Yahoo account at login.yahoo.com.
2. Click your profile name and select Account Info or go to login.yahoo.com/account/security.
3. Click Account Security.
4. Enable Two-step verification if not already on (required for app passwords).
5. Scroll to Generate and manage app passwords.
6. Click Generate app password.
7. Select Outlook Desktop from the dropdown (or type “Outlook”).
8. Click Generate.
9. Copy the 16-character password — paste it into Outlook when prompted.
10. Click Done.

According to Yahoo Help, app passwords allow third-party applications to access your Yahoo account without exposing your main password. You can revoke app passwords anytime from the Account Security page.

How Do I Set Up Yahoo Mail Manually in Outlook?

If OAuth fails, use manual IMAP setup — enter your Yahoo email, select IMAP, configure the server settings, and use your app password.

1. Open Outlook and click File > Add Account.
2. Enter your Yahoo email address, click Advanced options, and check Let me set up my account manually.
3. Click Connect and select IMAP.
4. Enter the server settings:
5. Incoming server: imap.mail.yahoo.com, Port: 993, Encryption: SSL/TLS
6. Outgoing server: smtp.mail.yahoo.com, Port: 465, Encryption: SSL/TLS
7. Enter your app password (not your regular Yahoo password).
8. Click Connect.
9. If prompted about outgoing server authentication, check My outgoing server requires authentication and select Use same settings as incoming.

Why Is My Yahoo Mail Not Working in Outlook?

The most common causes are using a regular password instead of an app password for manual setup, or OAuth failing due to cached credentials — clearing Credential Manager fixes most issues.

1. Check Authentication Method

Outlook Version	Method	Password to Use
M365 / 2024 / 2021	OAuth (automatic)	Regular Yahoo password
Outlook 2019 / 2016	App password (manual)	16-char app password
New Outlook	OAuth (automatic)	Regular Yahoo password

If you are on a newer Outlook but used manual IMAP setup, remove the account and re-add it using File > Add Account to trigger OAuth instead.

2. Clear Cached Credentials

1. Close Outlook completely.
2. Open Windows Credential Manager (search in Start menu).
3. Under Windows Credentials, find and remove entries for yahoo.com.
4. Restart Outlook and sign in again.

3. Verify Server Settings (Manual Setup)

Common Mistake	Correct Setting
IMAP server mail.yahoo.com	Use imap.mail.yahoo.com
Port 143 (no SSL)	Port 993 with SSL/TLS
SMTP port 25 (blocked)	Port 465 (SSL) or 587 (STARTTLS)
Regular password with IMAP	Must use app password
Control Panel Mail setup	Use File > Add Account instead

4. Re-Authorize OAuth

If the Yahoo sign-in page appeared but Outlook still cannot connect:

1. Remove the Yahoo account from Outlook.
2. Go to login.yahoo.com/account/security.
3. Under Manage app permissions, revoke Outlook’s access.
4. Re-add the account in Outlook using File > Add Account — the Yahoo sign-in page will reappear for fresh authorization.

Does Yahoo Mail Sync Calendar and Contacts in Outlook?

Yahoo Mail added as an IMAP account only syncs email — calendar events and contacts do not sync between Yahoo and Outlook through IMAP.

Feature	Yahoo via OAuth	Yahoo via IMAP
Email sync	Yes	Yes
Calendar sync	No	No
Contact sync	No	No
Folders sync	Yes	Yes
Search	Yes	Yes

To access your Yahoo calendar alongside Outlook, use Yahoo Calendar in a browser at calendar.yahoo.com. Yahoo does not support Exchange ActiveSync, so there is no way to sync Yahoo calendar events to the Outlook calendar.

How Does Yahoo Mail Compare to Other Email Providers in Outlook?

Yahoo, AOL, and AT&T all run on Yahoo infrastructure and share similar setup processes — the main differences are the server addresses and branding.

Provider	IMAP Server	SMTP Server	Auth Method
Yahoo	imap.mail.yahoo.com	smtp.mail.yahoo.com	OAuth or app password
AOL	imap.aol.com	smtp.aol.com	OAuth or app password
AT&T	imap.mail.att.net	smtp.mail.att.net	Secure Mail Key
Gmail	imap.gmail.com	smtp.gmail.com	OAuth
Comcast	imap.comcast.net	smtp.comcast.net	Third-party access toggle
GoDaddy	imap.secureserver.net	smtpout.secureserver.net	Password or app password

For setup guides on each provider: AOL, AT&T, Gmail, Comcast, GoDaddy. For a complete overview, see our Outlook email setup guide.

If you need Outlook desktop with full Yahoo email support, Microsoft Office 2024 Professional Plus ($199.99) includes the classic Outlook application.

Frequently Asked Questions

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