This problem also occurs in an update/upgrade process from Thunderbird 3.x to higher versions (as far as up from 3.0.x to 3.1) The root cause is that the variable mail.imap.fetch_by_chunks no longer exists in 3.1 (and later versions 6.0 -10.0) and the new variable mail.server.default.fetch_by_chunks is set by default to true which causes the attachments corruption with Gmail's IMAP
Current fix (as of Feb 2012) is as mentioned above to set the new variable to false. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/220991 Title: Thunderbird corrupts attachments from IMAP exchange server Status in Mozilla Thunderbird Mail and News: Confirmed Status in “thunderbird” package in Ubuntu: Confirmed Bug description: Binary package hint: thunderbird For the last two weeks, all the attachments I download from our exchange server via IMAP cannot be opened. After downloading or double clicking, PDFs and DOCs are reported broken, whereas before they opened correctly. I've been accessing my single Thunderbird profile on Ubuntu's EXT3 file system both from Ubuntu and Windows XP for three months now. Both have the same problem. Roughly a month a go, some addresses of our exchange server changed, but I do not know if that was the only change. Downloading the attachments with Outlook via the Exchange Server connection or a IMAP connection still works. After downloading, the corrupt attachments are 20% smaller than the ones downloaded with Outlook. ProblemType: Bug Architecture: i386 Date: Wed Apr 23 14:18:37 2008 DistroRelease: Ubuntu 7.10 NonfreeKernelModules: fglrx Package: mozilla-thunderbird 2.0.0.12+nobinonly-0ubuntu0.7.10.0 PackageArchitecture: all SourcePackage: thunderbird Uname: Linux DS1 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/220991/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

