Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

blocking senders of unwanted emails

  • 1 reply
  • 1 has this problem
  • 24 views
  • Last reply by jonzn4SUSE

more options

in my emails is a function called 'mark as'. The drop down menu includes 'block sender' and 'spam'. Block sender only works a small portion of the time. I get a message 'error--can't block sender' Why can't I block a sender I do not want to receive emails from?

in my emails is a function called 'mark as'. The drop down menu includes 'block sender' and 'spam'. Block sender only works a small portion of the time. I get a message 'error--can't block sender' Why can't I block a sender I do not want to receive emails from?

All Replies (1)

more options

This appears to be a Thunderbird issue right?

https://support.mozilla.org/en-US/questions/thunderbird