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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

4.3.1 Insufficient system resources error

  • 1 freagra
  • 1 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó Matt

more options

After a system crash tonight (Ubuntu), I restarted the laptop and fired up Thunderbird. Now, when I try to send any email, even just a one word test message, I'm suddenly met with this error:

"The size of the message you are trying to send exceeds a temporary size limit of the server. The message was not sent; try to reduce the message size or wait some time and try again. The server responded: 4.3.1 Insufficient system resources."

I use Thunderbird in conjunction with my company's email server. This message would appear to be coming from our Outlook server, however I get it only when sending a message from Thunderbird. If I use Outlook Web or a VMWare session, I can send mail just fine.

Anyone? This is weird.

After a system crash tonight (Ubuntu), I restarted the laptop and fired up Thunderbird. Now, when I try to send any email, even just a one word test message, I'm suddenly met with this error: "The size of the message you are trying to send exceeds a temporary size limit of the server. The message was not sent; try to reduce the message size or wait some time and try again. The server responded: 4.3.1 Insufficient system resources." I use Thunderbird in conjunction with my company's email server. This message would appear to be coming from our Outlook server, however I get it only when sending a message from Thunderbird. If I use Outlook Web or a VMWare session, I can send mail just fine. Anyone? This is weird.

All Replies (1)

more options

two possible issues.

1. The server genuinely has issues.

2. Your SMTP settings are incorrect. Size errors are often reported if the password required by the server is not provided for example.