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

Thunderbird: Tools: Message Filters

more options

Thunderbird: Tools: Message Filters: I am trying to block all spam emails that begin with "admin@," but those spam emails are not blocked. I use "from" and "contains" admin@. How can Message Filters be set up to block any email from (begins with) "admin@"? Thank you.

Thunderbird: Tools: Message Filters: I am trying to block all spam emails that begin with "admin@," but those spam emails are not blocked. I use "from" and "contains" admin@. How can Message Filters be set up to block any email from (begins with) "admin@"? Thank you.

All Replies (2)

more options

How about posting what you have?

Then identify one of the missed spam mails and open the source (ctrl+U) and post the contents of the From: header. My guess is you are testing on something that is not in the from really. But instead of guessing I would like to work with facts.

Helpful?

more options

Thanks, Matt. What I have is as follows: (a) Windows 11 Pro (up-to-date). (b) Thunderbird Desktop version 128.9.2esr (released April 15, 2025).

The “source” (ctrl+u) from a missed spam email is as follows: Date: Thu., 24 Apr. 2025 14:22:00 +0000. From: Shoe Experts <admin@xtrastaff.com>

Notice the “From” email starts with admin. I set up a Filter Rule to delete any email “from” and “begins with” admin. That Filter Rule is not working. Yes, after creating that Filter Rule, I closed and reopened the Thunderbird email software.

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.