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

An error occurred while sending mail. The mail server responded: 5.7.1 From address not allowed. Please verify that your email address is correct in your accoun

more options

How do I fix this? I checked my address in the tools, account settings, outgoing server place, my address there is correct but I don't know about the other pieces of info.

How do I fix this? I checked my address in the tools, account settings, outgoing server place, my address there is correct but I don't know about the other pieces of info.

All Replies (1)

more options

You posted in the Firefox support fora queue. Firefox doesn't do email, it's strictly a web browser.

If you are using Firefox to access your mail, you are using "web-mail" such as Yahoo!Mail or Gmail. You need to seek support from your service provider or a forum for that service.

If your problem is with Thunderbird, let us know and we can move this thread to the Thunderbird support queue.

https://support.mozilla.org/en-US/kb/problems-with-email-how-to-find-help