I'm emailing some psd files with Gmail / Google Apps. They are above the 25mb send limit, so I'm zipping them. I sent a few successfully, but one file now won't send—I'm getting the error message:

> 
> filename.psd.zip contains an executable file. For security reasons, Wordfruit Mail does not allow you to send this type of file.
> 
> 
> 

The other files were the same type and they sent ok.

I also tried sending the same file with a Gmail account that's not Google Apps and it sent ok.

Is there a different setting related to sending attachments from my Google Apps account? Can I change this setting or otherwise send the file with my Google Apps Gmail? How?