One of the most common issues faced by users in their Yahoo Mail account is the problem with the Internal server error. Users who access their Yahoo Mail account on a third-party email client are the ones who experience this issue. The prime reason for the Yahoo Mail Internal server error is the configuration of the Yahoo Mail account using incorrect POP or IMAP settings. If you are also seeing the Yahoo Mail Internal Server Error when trying to access your Yahoo Mail on account on an email client, you may face trouble sending or receiving emails. To overcome the problem, you can follow the different workarounds provided below.
Guide to Fix Yahoo Mail Internal Server Error
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Make Sure That Issues Not Being Caused Due to an Issue with Your Account
The first thing you will need to check if there is a problem with your Yahoo Mail account. For this, you will need to look for any prompts or issues when following the below-mentioned steps.
NOTE: The following steps are to be followed before you try setting up your Yahoo Mail account on a third-party email application.
- Firstly, log in to your Yahoo Mail account using a supported web browser.
- Next, you will need to compose a new email and enter your own address in the “To” field.
- Then, you will need to send the email and see if you receive it within 5 minutes.
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Make Sure That you are Using the Correct IMAP or POP Settings
The next thing you will need to ensure is that the email application is configured with the correct Yahoo Mail IMAP or IMAP settings. Sometimes even when the information may appear to be correct, the data on the hard drive saved by the application might turn out to be corrupt or having hidden invalid characters. In such a case, it is suggested to remove your Yahoo Mail account from the email app and add it again to clear the doubts of having corrupt files or invalid characters. In case you need instructions for your app specifically, you will need to contact its manufacturer. Below are the POP and IMAP Settings for Yahoo Mail that you will need to configure your email account.
POP settings for Yahoo Mail
Incoming Mail (POP) Server
- Server:mail.yahoo.com
- Port: 995
- Requires SSL: Yes
Outgoing Mail (SMTP) Server
- Server:mail.yahoo.com
- Port: 465 or 587
- Requires SSL: Yes
- Requires TLS: Yes (if available)
- Requires authentication: Yes
Your login info
- Email address: Your complete email address
- Password: Your account’s password.
- Requires authentication: Yes
IMAP settings for Yahoo Mail
Incoming Mail (POP) Server
- Server:mail.yahoo.com
- Port: 993
- Requires SSL: Yes
Outgoing Mail (SMTP) Server
- Server:mail.yahoo.com
- Port: 465 or 587
- Requires SSL: Yes
- Requires authentication: Yes
Your login info
- Email address: Your complete email address
- Password: Your account’s password.
- Requires authentication: Yes
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Check If Any Software is Blocking the Ports That Yahoo Mail Uses
Sometimes, the security setting or programs such as Antivirus Software, Anti-Spyware Programs, Firewalls Settings, etc. can block ports that Yahoo uses. If you find any of the ports (995, 465, or 587) being blocked, the email application will not be able to connect to Yahoo Mail servers. Therefore, it is suggested to check with your Internal Service Provider(ISP) or the manufacturer of your security software to know how to check for and unblock ports.
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Check The Following Scenarios
If You Are Using an Older IMAP or POP Email App
If you are setting up your Yahoo Mail account in an older email app which uses IMAP or POP, you might see “Server password has changed” or “Authentication failed” error message. This error occurs because of those email apps using an outdated security protocol to which Yahoo has disabled access.
If You Are Using Yahoo Account Key or Two-Step Verification
If you have enabled the Account Key or Two-Step verification feature for your Yahoo Mail account, you will need to generate an app password for accessing your Yahoo Mail account on a third-party email client. To generate an app password, you will need to go to Account info > Account Security >Manage/Generate app password.
If You Have Added an Extra Email Address to Your Yahoo Mail Account
Always make sure that you have verified the extra email address that you add to your Yahoo Mail account. Having an unverified email address can lead to issues such as a 553 error code when sending a message using a third-party email application. You will need to follow the on-screen prompts in the email account on which you have received the verification message.
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Reach your Email App Manufacturer or Use a Different Email App
If you have checked that your Yahoo Mail account is functioning properly outside of the app, and you’ve already considered the other possible solutions, then it means there are some issues with the email app you are using. In such a case, you can contact the app manufacturer for additional troubleshooting steps or you can simply use a different third-party email app.
So, these are the workarounds that you can use to fix Yahoo Mail Internal Server error in your account.