I have gotten the error opening message a few times with Sp@mX Macintosh with Mail bulk files that I have saved as. The program works most of the time, but I am recently getting more of these bulk files that Sp@mX can't open. For some reason it seems like the ones that don't work have Asian fonts in their titles in every instance.
I was going to copy and paste the name from Sp@mX, but can't because comamnd c is another command, but here it is from my finder :[Bulk] 誰でも5,000円分…, the [Bulk] being tagged on by my Pacbell/Yahoo e-mail account (why I get 99% of my Spam from that account is another question, especially when I don't and never have used that account for signing up for anything).