Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

error occurred while sending mail. The mail server responded: 5.5.3 Sending disabled because maximum threshold has been reached

more options

error message, when i try to send email: An error occurred while sending mail. The mail server responded: 5.5.3 Sending disabled because maximum threshold has been reached

error message, when i try to send email: An error occurred while sending mail. The mail server responded: 5.5.3 Sending disabled because maximum threshold has been reached

All Replies (1)

more options

The message is from your email provider. You need to ask them what it means. It sounds like you sent your limit of messages for a given period.