This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why are my emails to @hotmail addresses not getting through?

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by Toad-Hall

more options

I have three contacts with hotmail addresses but always receive an "undelivered mail, return to sender" reply together with a lot of jargon I do not understand. Hear that there have been problems with hotmail and outlook emails. What is the problem and how to fix? My contacts say they have no problems from other contacts.

Thanks John

I have three contacts with hotmail addresses but always receive an "undelivered mail, return to sender" reply together with a lot of jargon I do not understand. Hear that there have been problems with hotmail and outlook emails. What is the problem and how to fix? My contacts say they have no problems from other contacts. Thanks John

All Replies (1)

more options

re :receive an "undelivered mail, return to sender" reply together with a lot of jargon

Depends upon what else that message said. It usually says more than "undelivered mail, return to sender". The info gives an explanation of the issue, but I'm only guessing at possibilities as I don't know what else was mentioned in the email.

Possible causes: If the email address was incorrect then it will get bounced back because there is no destination; assuming the incorrect email address was not actually used by someone else.

If the recipient has used up their server quota then it cannot be delivered.

Your email has been blocked by the recipient server as being classified as spam.