emaill attachment problems

Hello, I have aproblem with getting attachments to my tmo blackberry email. Sometimes io get the message your phone does not support this attachment. But yet I get the kind of attachment from the same guy everyweek. I get this message about 20% of the time. The weird thing is that I can forward that same message to my home email and that back to my phone without changing anything and then I can open it just fine. Any idea?

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