Does my outlook account notify me if I have sent an email to an invalid address?

Hi jonnie73,

Let me address your inquiry about sending messages. Please know that once you sent a message to a particular recipient, you'll only get a bounce message or notification for failed delivery of messages once the email account of the recipient is not existing on any domain. But if it does, you won't be able to receive any notification for it only means that the email that you sent went through and the recipient should be able to receive your email.

If you have any questions and clarifications, please let us know.

Thank you.

Hi jonnie73,

I understand that you're not receiving bounce emails when you send to an invalid email address. I also understand that this must be important to you. Don't worry, let us help you with this.

As what Melanie_D. has mentioned, it could be that the email account you have sent the email to does exist which is why you did not receive any bounce emails. If the recipient is not receiving your emails, kindly ask the recipient to check his settings to receive your emails.

Please let us know if you have additional questions.

Thanks!

Hi jonnie73,

Let me try to figure out your issue. I would like to inform you that aside from sending to an "invalid email address", there are other reasons why a sender receives a failure notification. To have a better understanding about bounce messages, please read this article below:

How do I interpret the delivery failure message that I have received?

In addition, you mentioned that you did a test email where you used your Outlook.com account and other non-Microsoft account and sent an email to the same email account. Microsoft account did not generate a postmaster notification failure but the other non-Microsoft account did. To be able to answer your question, we need you to provide us the email address of the person you tried to send an email. Please post it in the private message area I've created for you. This information would help us reproduce the issue on our end.

Note: Click on You have a private reply to this message link just above your post to view the message. You need to be signed in to the Microsoft Community forum to view the link. We need you to reply back to this post once you have provided the information in the private area.

Thank you.