Mozilla Thunderbird and Gmail IMAP Attachments Bug

Posted Wednesday, 03 March 2010 at 20:15 by Andrew Liu
Tagged: google | mozilla thunderbird | email | gmail
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I've been using Gmail since its early inception, and I was one of the first to utilise Gmail's IMAP features.  Recently though, I've had trouble opening documents through Mozilla Thunderbird through an IMAP Gmail server, with documents coming through as "broken", "invalid" or "corrupt".

 

It appears that this is not as uncommon as expected.  Several people have noted this (see this Google Groups thread, and this post), and it appears there is a problem with Gmail reporting an incorrect size / length for the attachment.  I used to open the file in normal Gmail after a while, but doing this a few times makes you think "why am I working around a problem? Things should be a lot easier, especially as you'd expect Google to get everything right."  So here's the solution - looks like you can change some configuration in Mozilla Thunderbird to resolve this.

  • Tools > Options... > Advanced > General > Config Options
  • Search for "chunk"
  • You should see a preference named "mail.server.default.fetch_by_chunks". Toggle it to false.
  • Close and restart.

 

 

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Mozilla Thunderbird and Gmail IMAP Attachments Bug

Posted Wednesday, 03 March 2010 at 20:15 by Andrew Liu


I've been using Gmail since its early inception, and Iwas one of the first to utilise Gmail's IMAPfe...

Read more...



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