Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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

This thread was archived. Please ask a new question if you need help.

Thunderbird couldn't connect to one.com accounts. Error message: banned by policy

  • 1 reply
  • 1 has this problem
  • 16 views
  • Last reply by s.lalala

s.lalala
s.lalala
more options

Hello, this issue appeared today without a reason (couldn't find any change to my system): Thunderbird couldn't connect to one.com accounts. Error message: banned by policy Other Email accounts (e.g. strato.de) hosted by thunderbird work flawlessly. One.com support has no idea how to fix this issue and blames Thunderbird. Maybe someone here has an idea?

Thanks in advance.

Hello, this issue appeared today without a reason (couldn't find any change to my system): Thunderbird couldn't connect to one.com accounts. Error message: ''banned by policy'' Other Email accounts (e.g. strato.de) hosted by thunderbird work flawlessly. One.com support has no idea how to fix this issue and blames Thunderbird. Maybe someone here has an idea? Thanks in advance.

Chosen solution

Hello,

I could solve the issue by myself. After I found out that another software showed the same issue, I reconnected my router (e.g. switching the router off and on) to retrieve a new IP number. After that the issue was gone. So most likely the issue was caused by one.com and thunderbird was not to blame.

Read this answer in context 👍 0

All Replies (1)

s.lalala
s.lalala Question owner
more options

Chosen Solution

Hello,

I could solve the issue by myself. After I found out that another software showed the same issue, I reconnected my router (e.g. switching the router off and on) to retrieve a new IP number. After that the issue was gone. So most likely the issue was caused by one.com and thunderbird was not to blame.