Why can't I send emails to certain email addresses?

Question

I am receiving undeliverable messages from hotmail and yahoo. As of today I'm now receiving the same messages from Google accounts. What is the issue? Please assist.

Answer 1

In general that means the emails are not valid. The email (e.g. ******@yahoo.com) was sent to the mail server that manages that domain (e.g. yahoo.com). The mail server attempted to match the mail to an address they support (e.g. somebody). That process failed so the mail was rejected as undeliverable. You should be able to look at the response message and see exactly who rejected it. It should be a mail server in that domain.

There are potentially other causes as well. For example many mail servers try to prevent spam messaging so it is possible the email could trigger their spam filter. Another possibility is that that the number of emails being received exceeds the limits of the service for a time frame and are auto-failed. This is to prevent a malicious app from attempting to send out lots of emails from an email address.

Review the undeliverable message and it will generally tell you who and what is going on.

Answer 2

Hi @Kaylie Moeller ,

Thanks for your reply!

According to the error, i found a similar thread as yours, which mentioned the below information:

It's suggested that you could try the suggestions mentioned in it. (Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)

In addition, i notice that you have post your email address and i have hidden it. In order to avoid privacy leakage, please remember to hide your personal information.)

Hope to help you!

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