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.

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

How to set a filter for incoming messages on criteria in the message header?

  • 1 jibu
  • 1 ana tatizo hili
  • 7 views
  • Last reply by sfhowes

more options

Friends: How to set a filter for incoming messages on criteria in the message header? Sometimes scammers / spammer make the email body impossible to detect key words but in the message header there are things I could set filter on to detect it as junk. Thanks.

Friends: How to set a filter for incoming messages on criteria in the message header? Sometimes scammers / spammer make the email body impossible to detect key words but in the message header there are things I could set filter on to detect it as junk. Thanks.

All Replies (1)

more options

Rules for message headers can be created by adding a custom header. In the Filter Rules window, click the criteria drop-down, the one that defaults to Subject, select Customize..., add the header, e.g. Content-Type or Reply-To. Filters can then be created based on the custom headers. The same method applies to Classic Search, Ctrl+Shift+F.