Unless timely resolved, a temporary issue like ‘Yahoo Mail not sending emails’ can get aggravated and cause a severe problem. However, it is a tough task to know or find out the exact problem that creates such issues while sending emails from your Yahoo Mail account.
Whether your emails stuck in the Outbox or any other error stop you from sending a message successfully, we bring you all possible causes and their solutions below.
“My Yahoo Mail is Not Sending Emails” – All Causes and Solutions
When you encounter that your Yahoo Mail is unable to send emails successfully, it becomes inevitable to find the root cause and fix it.
1. Yahoo Mail Not Sending Emails Because it Can’t Connect to the Internet:
This is the first thing you need to check when there’s a failure to send emails from your Yahoo mail account.
The unavailability of the Internet, poor connection or the device settings could block your Yahoo Mail from accessing the Internet, causing Yahoo mail not sending or unable to receive emails. To resolve this –
- Firstly, check your browser for Internet access.
- Secondly, check the help site of your device (if the device settings are blocking Internet access).
2. Yahoo Mail Not Sending Emails Because Attachments Exceed the Limit:
You must know that Yahoo allows you to attach a maximum file size of 25 MB. If you try to attach files or images more than the maximum limit, you wouldn’t be able to send the email. To fix it, compose the email again with fewer attachments (less than 25 MB). If you want to send a file of more than 25 MB, connect your Yahoo mail with Google Drive or Dropbox.
3. Yahoo Mail Not Sending Emails Because of Wrong App Settings:
If you are using the Yahoo mail app on your mobile device, sometimes wrong or corrupt app settings won’t allow you to compose an email and send it successfully. You need to uninstall the app (if you are sure something has corrupted it) and reinstall it to fix the error.
Steps to uninstall Yahoo mail app on Android –
- Open your device and go to Settings.
- Tap Apps and select Yahoo mail App from the list.
- Tap Uninstall and OK.
Steps to install Yahoo Mail app on Android –
- Open Google Play Store and search for Yahoo mail.
- After finding it, tap Install.
- Give App Permissions and tap Accept to download the app.
- Now configure your Yahoo mail in the app.
Steps to uninstall Yahoo mail app on iOS/iPhone/iPad –
- On your iOS device, tap and hold the Yahoo mail app icon you want to uninstall.
- Tap ‘x’ and then Delete.
Steps to install Yahoo mail app on iOS/iPhone/iPad –
- Open App Store and search for Yahoo Mail in the search field.
- After finding it, tap Install.
- Tap OK to continue downloading and installing the Yahoo Mail app.
- Once installed, add your Yahoo mail account in the app.
4. Unable To Send Emails Because of a Temporary Error from Yahoo’s End:
When everything else is just perfect, but you still not able to send emails, it must be a temporary issue from Yahoo. Yahoo encourages you to submit a log file for further investigation. The engineers will investigate the error. However, you shouldn’t expect a reply from them.
How to Submit a Log File from Yahoo Mail App on Android –
Enable debug logging –
- Tap the Profile icon and select Settings.
- Now, tap on About Yahoo Mail and tap Enable debug logs.
You must attempt to reproduce the issue. Submit the log once it appears.
- Tap on the Profile icon and then on Give feedback.
- You may like to describe the issue. So, enter a quick note and ensure Include logs is on.
- Now tap on Send.
How to Submit a Log File from Yahoo Mail App iOS Device –
- Tap the Profile icon.
- Tap Give feedback.
- Now enter a quick note to describe the issue.
- Now, tap Send.
5. Not Able to Send Emails Because of Incorrect Server Settings (SMTP):
If you are using Yahoo Mail on a third-party email client, application, or email program, you should check whether the Yahoo Mail server settings (IMAP, SMTP, and POP) are correct.
Yahoo Mail IMAP Settings –
| IMAP (Incoming Mail) Server | SMTP (Outgoing Mail) Server | Login Details |
| Server – imap.mail.yahoo.com | Server – smtp.mail.yahoo.com | Email address – Full email address |
| Port – 993 | Port – 465 or 587 | Password – Your password |
| SSL Required – Yes | SSL Required – Yes | Authentication Required – Yes |
| Authentication Required – Yes |
Yahoo Mail POP Settings –
| POP (Incoming Mail) Server | SMTP (Outgoing Mail) Server | Login Details |
| Server – pop.mail.yahoo.com | Server – smtp.mail.yahoo.com | Email address – Full email address |
| Port – 995 | Port – 465 or 587 | Password – Your password |
| SSL Required – Yes | SSL Required – Yes | Authentication Required – Yes |
| Authentication Required – Yes | ||
| TLS required – Yes |
If you are still not able to send emails from your Yahoo account and need further assistance, contact Yahoo customer service and consult with a live expert.