Comparing letters by non-displayed service headers

[Nick222]

Can the user specify a comparison of emails based on service headers of their choice, for example:

"Content-Base"

Thank you :)

[eyalroz]

This is, I'm afraid, not supported. Mostly because Thunderbird doesn't provide you headers-of-your-choice. It is possible to get the whole body+headers and parse that yourself, but that's quite slow; and there's the question of canonicalizing compatible headers, multiple occurrences of a header etc. If I had a lot of spare time; and if it wasn't for this damn war; and if there was more user demand; I might have done it...