Using classic Outlook for Windows in business environments
Hello! Janka Lem
Thank you for posting in Microsoft Community
Upon checking the shared information that you're experiencing issues with sending emails to Yahoo recipients. The error message you received indicates that there may be an issue with the recipient's email system not accepting connection requests from your email system.
I would recommend contacting the recipient by phone or other means and asking them to check with their email administrator to see if there are any issues on their end. You can also provide them with the error details shown in the message you received.
Additionally, you can refer to the article provided in the error message for more information and tips on how to resolve this issue. Also, allow me to ask:
- May I know how do you access your emails? is it through Outlook.com (web)? Outlook application (included in Microsoft 365 subscription)? New Outlook for Windows? Classic Outlook for Windows (Windows Mail app)? Outlook application for mobiles?
- Can I know what version and edition of Office installed in your computer?
- You can open any Office apps
- Go to File > Accounts - on the right side you can see Product Information
- Can I know what version and edition of Office installed in your computer?
- I would like to know what @domain and who is hosting your email account? example for @domains: Gmail.com, Yahoo.com, Outlook.com/Hotmail.com
- May I know if the account is for Work/School use? or Personal (Hotmail/Outlook.com) use?
- May I know what email configuration is your email account in Outlook? is it POP/IMAP? Or Microsoft Exchange?
- Are you able to send emails to other recipients?
Just to let you know that Yahoo.com is not hosted by Microsoft so you may have to contact the Yahoo support for any related Yahoo account/emails concerns. But yes regarding for the recipient not being sent you may have to contact the recipient as they may have blocked your emails from being received.
I hope it helps!
Thank you,
Vince
Microsoft Community Moderator