Having trouble with your Yahoo! Mail Mail

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Q1: Let us know, since how long have you been facing this error/issue:

IMAP & POP Related Issues

The Yahoo IMAP & POP-related issues refer to problems encountered while accessing Yahoo mail on third-party email clients using IMAP and POP protocols. These issues may include authentication errors, syncing problems, and difficulty sending or receiving emails.


  • Incorrect or invalid POP or IMAP settings for Yahoo Mail in third-party email clients
  • Corrupted or invalid data saved by the email app
  • Unverified email addresses cause errors when sent from a third-party app
  • Outdated devices pulling from IMAP
  • Firewall, antivirus software, or network protocols blocking ports
  • Outdated email app with disabled security protocols.

Solution 1: Check your Yahoo account and send a test message

  1. Firstly, sign in to Yahoo Mail from an internet browser.
  2. Then, write a new email and add your address in the "To" section.
  3. After that, you have to send the email.
  4. Now, wait for five minutes to see if it arrives.
  5. This will help you confirm if your account is working correctly and if you can send and receive messages.

Solution 2: Confirm the IMAP or POP settings and delete and re-add the Yahoo account in the app

  1. First, open the email app on your device and go to the account settings.
  2. Confirm that the app is configured with the correct POP or IMAP settings for Yahoo Mail.
  3. If the settings seem correct, delete the account from the app.
  4. After deleting the account, re-add it and enter the correct settings for Yahoo Mail.
  5. Test the account by sending and receiving emails to see if the issue has been fixed.

Solution 3: Use an app password or check for extra email addresses

  1. Sign in to your Yahoo account and go to your Account Security webpage.
  2. Switch on the "Allow apps that use less secure sign in" toggle if it's not already on.
  3. After that, scroll down to "Generate app password" and select it.
  4. Select the app you're using and follow the steps on the screen to generate an app password.
  5. Use the newly generated app password in place of your regular password in the third-party app.
  6. If you're getting a 553 error, check for any unverified email addresses associated with your account and remove them.
  7. Once done, try sending a test message from the third-party app to verify if the issue is fixed.

Solution 4: Check your device's settings and connected devices

  1. First, open your device's email settings and then select the Yahoo account.
  2. Confirm that the Sync setting is on and set to the appropriate interval.
  3. Check the Server setting to ensure it is set to imap.mail.yahoo.com or pop.mail.yahoo.com.
  4. Verify that the Port setting is correct, which should be 993 for IMAP or 995 for POP.
  5. Check for any outdated or unused devices that are still connected to your account and remove them.
  6. Limit the number of devices that are pulling from IMAP to avoid any issues.
  7. Lastly, save the changes and try sending or receiving emails again.

Solution 5: Update the app or grant temporary access

  1. Check if the app requires an update by visiting the app store and updating the app if necessary.
  2. If you receive an error like "Server password has changed" or "Authentication failed," grant temporary access to the app in your account settings.
  3. Then, log in to your account and go to Account Security settings.
  4. After that, tap on Manage app passwords and select the app.
  5. Generate an app password and use that to log in to the app. If you've previously generated an app password for the app, you can also use that.
  6. If the issue persists, contact the app manufacturer for further troubleshooting steps.

Solution 6: Check for software blocking ports or use a different app

  1. Check for software blocking ports - Firewalls, antivirus programs, and network protocols can block ports. Check with the Internet Service Provider or security manufacturer to learn how to check for and unblock ports.
  2. Use a different app - If you've confirmed that your account is working outside the app and checked the other solutions, there is something wrong with the app. The app manufacturer may have different steps to try. Or use a different third-party email app.
Email Support

Frequently Asked Questions (FAQs)

Yes, Yahoo Mail supports POP3, IMAP, and SMTP protocols. Users can find the settings for all protocols. However, Yahoo may not accept the main account password so that users can generate and use third-party app passwords.

One possible reason for email blockage on Yahoo is the use of unauthenticated emails. In order to improve the likelihood of email delivery to inboxes, it is important to authenticate your domain or reputation with Internet Service Providers (ISPs).

If you are not receiving all your emails in Yahoo Mail, you should check your account settings to ensure the sender or domain was not mistakenly blocked. You should also check your spam folder, as the email may have been mistakenly marked as spam.

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