Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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
Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.
Solved Okugcinwe kunqolobane

"400. That’s an error.", so Can no longer receive email. Can load Thunderbird but cannot Get Messages

CAtransplant

This is the screen I get when I follow the instructions from the first denial screen:

400. That’s an error.

The server cannot process the request because it is malformed. It should not be retried. That’s all we know.


the last time I received an email update on my desktop PC (Win 7 Pro) was 4:08PM (yes, PM) for one account and 4:44AM (yes, AM) for the other account. On my phone, the 4:08PM is the same but the other email account recd an update at 3:17PM.

This is the screen I get when I follow the instructions from the first denial screen: 400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know. ----------- the last time I received an email update on my desktop PC (Win 7 Pro) was 4:08PM (yes, PM) for one account and 4:44AM (yes, AM) for the other account. On my phone, the 4:08PM is the same but the other email account recd an update at 3:17PM.

Okulungisiwe ngu Wayne Mery

All Replies (2)

I believe I received an email at 4:08PM on both my cellphone and my desktop but I deleted it on my phone, leaving the latest received at 3:17PM. So, error in receiving email on both phone and desktop occurred at the same time.

Isisombululo Esikhethiwe

The following link might be helpful: Google sign in for Thunderbird https://support.mozilla.org/en-US/questions/1487655