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I'm having this annoying issue lately. Every file that I attach at some message, it goes corrupted to the receiver. And when someone send me something attached using Thunderbird I can't open the file, it says it's corrupted, but if I use the webmail interface I can download and open the file correctly, why is that ? Why is that happening ? Any ideas ?

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What version of Thunderbird are you using?. What add-ons do you have? – Ramhound Nov 16 '12 at 14:28
What E-Mail server do you use for receiving? Thunderbird has AFAIR some problems with Exchange via IMAP and attachments. – Robert Nov 16 '12 at 14:55
@Ramhound, I using the last one at the time, v15. – Valter Henrique Aug 9 '13 at 10:56
@Robert, I was using the gmail. – Valter Henrique Aug 9 '13 at 10:57

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