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I'd like to be able to display the contents of an email header (X-Spam-Score) as a column in the email list within Thunderbird.

This header is added by my mail providers Spam Assassin install, and I'd like to be able to sort mail with it.

I know how to filter mail using this header, but I'm trying to get it to display as a column , next to From, Subject, Date and so on.

Thunderbird V 17.0.7

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Are you open to add-ons? – Raystafarian Jul 29 '13 at 1:21
Yes, that's not a problem, as long as it does what I need. I did have a look for add ons, there are a few that add extra fields, but non give me the ability to either specify an email header as a column or add this specific header – Rob Jul 29 '13 at 8:42
I don't know if you've looked at this (or if you could adapt it) but the spamness seems to add a column based on the score – SeanC Jul 29 '13 at 22:31
@SeanCheshire , that looks quite interesting, it seems ot can be configured to display the score itself rather than it visualisation 'blob' – Rob Jul 30 '13 at 8:33
I tried the spammness extension. When I first added it i saw a few emails had values in the new column added, but now they are all blank again. so, this seems a possibly unreliable extension. It looks like it uses regex to scrape the information out of the headers, I wonder if this is heavily depended on the version of Spam Assassin in use. – Rob Jul 31 '13 at 14:02

This might work as a workaround, to show the X-Spam-Score header in the message headers:

  1. Go into Tools > Options > Advanced > General, then click Config Editor.
  2. Copy-paste mailnews.headers.extraExpandedHeaders into the about:config search bar.
  3. Double-click and enter X-Spam-Score as value.
  4. Close both windows and restart Thunderbird.


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I'll try that, but that is not quite what I'm looking to do. I want to be able to sort emails in the folder based on this header value – Rob Jul 31 '13 at 14:00

The only solution for now seems to be the creation of an extension. Here's a example:

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I've been using this columnswizard addon for this and it works great.

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Please read How do I recommend software for some tips as to how you should go about recommending software. You should provide at least a link, some additional information about the software itself, and how it can be used to solve the problem in the question. – DavidPostill Jul 12 at 10:37

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