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.

Avatar for Username

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

Denc nañu waxtaan wii. Yónneel yeneen laaj soo soxlaa ndimbal.

Cannot receive email suddenly.

  • 1 tontu
  • 6 am na jafe-jafe bii
  • 22 views
  • i mujjee tontu mooy steve355

jherbjr
jherbjr
more options

I was receiving my email from outlook.com and part way through, I get this message: The STAT command did not succeed. Error getting message number and sizes. Mail server pop-mail.outlook.com responded: Server Unavailable. 21

I was able to read the emails directly on the server and deleted each after reading. But nothing else will come into Thunderbird. I get the above error each time.

I was receiving my email from outlook.com and part way through, I get this message: The STAT command did not succeed. Error getting message number and sizes. Mail server pop-mail.outlook.com responded: Server Unavailable. 21 I was able to read the emails directly on the server and deleted each after reading. But nothing else will come into Thunderbird. I get the above error each time.

All Replies (1)

steve355
steve355
more options

The same thing happened to me this morning. My email account is a POP3 account that I got free from GoDaddy years ago. They have since sold it to Microsoft and now I have to pay an annual fee for it.

I got an email a few weeks ago that Microsoft would no longer accept Basic Authorization from email apps like Thunderbird, and if I didn't change it my email would be shut off on June 2, 2023. They also made it sound like you had to switch your account from POP3 to Exchange, but further reading led me to believe this was not true for Thunderbird, since Thunderbird can use OAuth2 authentication. So I switched both the incoming and outgoing servers to OAuth2. They both worked fine, and June 2 came and went with no problems.

Now it is June 9 and I am getting the same message as you for my incoming server, but my outgoing server is still working just fine. I am holding off switching my account to Exchange because it has limitations I don't like, and POP3 is perfect for me. I am hoping someone comes up with a solution. Until then I am using Outlook on the web.

Also my phone email, the Samsung Email app on my Galaxy android, also stopped syncing. So it's not just Thunderbird.