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Sometimes, when I receive (Thunderbird on OS X 10.5) emails with an EPS attachement sent from Mail OS X 10.4, I cannot open the EPS file. Thunderbird shows me 1 file, that can't be opened with any software but text edit.

But, if I forward the email to myself, the forwarded email then has 2 files of the same name. One of the 2 forwarded files can be opened as expected.

What can be wrong here?

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Can you post the topmost line or two from one of the files opening in TextEdit? – tcv Feb 6 '10 at 23:38

Try detaching the file before opening it.

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Already tried it, to no avail. – Martin Oct 9 '09 at 14:15
Is this for a specific email account? Your provider (Gmail, Yahoo, ISP) might be messing with the attachment. – Josh K Oct 9 '09 at 14:51
No, it is from our company's email address. It's hosted by 1und1, sending out of the office via the internet server back into the office. – Martin Oct 9 '09 at 20:54

You could be losing OS X specific metadata when it's attached and send over e-mail. It's been a long time since I dealt with .eps files but I seem to recall we used to have to zip eps files before sending them for this reason. We've long since abandonded the format though. Anyway, it's worth a shot, having the file zipped before being e-mailed.

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