User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; it-IT; rv:1.8) Gecko/20051111 Firefox/1.5 Build Identifier: Thunderbird version 1.5 rc2 (20051201) If you receive or import an email with this code (example): From - Sun Dec 25 09:56:38 2005 X-Account-Key: account3 X-UIDL: 11564 X-Mozilla-Status: 0001 X-Mozilla-Status2: 00000000 Return-Path: <xxxxx@xxxxxx.it> Received: from aa005msg.fastwebnet.it (192.168.0.42) by ms001msg-mx.fastwebnet.it (7.2.069.1) id 43A7C4EF000EC2D1 for xxxxxxx@fastwebnet.it; Sun, 25 Dec 2005 09:47:03 +0100 Received: from xxxxxxxxxxx.it (80.241.172.12) by aa005msg.fastwebnet.it (7.2.069.1) id 43AD55910002291E for xxxxxxxxxx@fastwebnet.it; Sun, 25 Dec 2005 09:47:03 +0100 Received: from xxxxxxxxxx.it (xxxxxxxxxxxx.it [127.0.0.1]) by xxxxxxxxxxxx.it (8.13.1/8.13.1) with ESMTP id jBP8qZUl032456 for <xxxxxxxxxx@fastwebnet.it>; Sun, 25 Dec 2005 09:52:36 +0100 Received: (from apache@localhost) by xxxxxxxxxxx.it (8.13.1/8.13.1/Submit) id jBP8qZsf032455; Sun, 25 Dec 2005 09:52:35 +0100 Date: Sun, 25 Dec 2005 09:52:35 +0100 From: realuser@provider.org Message-Id: <200512250852.jBP8qZsf032455@xxxxxx.it> To: xxxxxxx@fastwebnet.it Subject: Real subject Da: Sun, 31 Dec 2099 09:52:35 +0100 Fr: fakeuser@invalid.com Sub: This is not the real subject Mime-Version: 1.0 Content-Type: text/plain This is a test mail. you'll see that the headers in thread pane are parsed incorrectly. In fact in subject column you'll have "This is not the real subject" , in date column "31/12/2099 " and in sender column "fakeuser@invalid.com". It seems that Thunderbird can't distinguish, in parsing headers, the header name and its substring (for ex. Date Dat Da D - Subject Subjec Subje Subj Sub). Notice that the wrong parsing has effect just in thread pane and in reply headers, but not in forward headers, in msgHeaderView box and in message window. Reproducible: Always Steps to Reproduce: 1. receive an email with headers with names that are substrings of other headers Actual Results: The headers named, for ex. D Da Dat, are parsed as Date in some components of Thunderbird (thread pane, reply headers). The same for other headers. Expected Results: The headers should be parsed based on their entire name.

Confirmed on Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051201 Thunderbird/1.5 ID:2005120113 (reproducable on 1.0.x too) The false headers only show in the message list, in the message pane they are fine.

dupe