To connect to a Yahoo Mail account, third-party email programs such as Outlook and Mac Mail are known to use the POP or IMAP protocols. Although you should not have any problems using your Yahoo Mail account on an email client once you have configured it correctly, the Yahoo SMTP server may not work properly for a variety of reasons. In this instance, you may want to try addressing the issue by using the steps outlined below.

How To Resolve The “Yahoo Smtp Server Not Working” Problem

The Simple Mail Transfer Protocol (SMTP) is a communication protocol for sending and receiving electronic mail. You may experience issues sending or receiving email messages if the SMTP server encounters an error. If your Yahoo Mail account’s SMTP server isn’t working, try the following steps:

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Check To See If There’s A Problem With Your Yahoo Mail Account.

Make sure to handle any error prompts or issues you encounter when doing the following activities before attempting to utilize your account with a third-party email program:

To begin, you must first sign in to your Yahoo Mail account using a web browser.

Once you’ve logged into your Yahoo Mail account, you’ll need to create a new email message and fill in the “To” field with your email address.

After you’ve finished writing your email message, click Send Now and wait 5 minutes to see whether you receive a response.

If an issue occurs on your screen, you must correct it before continuing.

Check To See If You’re Using The Right Imap Or Pop Settings.

If you’ve configured your Yahoo Mail account with IMAP or POP settings, double-check that you’ve entered the correct information. Even though the information appears to be correct, the app’s data saved to the hard drive may be corrupted or include invalid characters. If this is the case, you can try removing and re-adding your account to be certain. If you require particular instructions for your app, you should contact the service provider. Yahoo Mail’s POP and IMAP settings are listed below.

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Yahoo Mail Incoming Mail (POP) Server POP Settings

• mail.yahoo.com is the server.
• 995 (port)
• SSL is required: Yes

SMTP (Simple Mail Transfer Protocol) Server

• mail.yahoo.com is the server.
• 465 or 587 port
• SSL is required: Yes
• Yes, TLS is required (if available)
• Yes, authentication is required.

Login Information

• Your email address is: Your email address in its entirety
• Your Yahoo account password is your password.
• Authentication is required: Yes

Yahoo Mail Incoming Mail (POP) Server IMAP Settings

• Server:mail.yahoo.com
• 993 (port)
• SSL is required: Yes

SMTP (Simple Mail Transfer Protocol) Server

• Server:mail.yahoo.com
• 465 or 587 port
• SSL is required: Yes
• Yes, authentication is required.

Login Information

• Your email address is: Your email address in its entirety
• Password: Your Yahoo username and password
• Authentication is required: Yes

Check To See Whether Any Software Is Interfering With The Ports We Use.

Firewalls, antivirus software, and network protocols all have the potential to restrict ports. Yahoo servers will be inaccessible to the app. In this scenario, you’ll need to contact your Internet Service Provider or the maker of your security software to learn how to check and unblock ports.

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Check If Any Of The Scenarios Listed Below Apply To Your Situation.

• Check to see whether you’re using an older POP or IMAP account. If that’s the case, you’ll need to update them before you can use your Yahoo Mail account to send or receive emails.
• For the third-party email application, you’ll need to establish and utilize an app password. In Account security > Two-step verification, you can create and manage application passwords for your email program.
• If you have added an additional email address to your Yahoo Mail account, check sure that you have validated that email address. When sending a message via a third-party email application, if the email address is not confirmed, it can result in issues such as 553 error codes. You’ll need to follow the instructions you received from the other email address to finish the verification procedure.

Consider Contacting Your App’s Developer Or Switching To A Different App.

If your Yahoo account works outside of the app and you’ve exhausted all other options, the issue is most likely with the app you’re using to access your Yahoo Mail account. In this scenario, it’s preferable to contact the app’s developer, since they may have further troubleshooting procedures to resolve the issue. Alternatively, you might use a third-party email client like Outlook, Thunderbird, or Mac Mail.

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