how long filename of attachment?

Mon Mar 23 10:31:34 GMT 2009

Dear All,

   Our mail server display below information,recipient can't receive attachment,how to resolve it or magnify this limit? Thanks!

MailScanner: Very long filename
possible OE attack (è?ªå?¨æ?§ç½®è£?ç½®ç?¨æ??è½´è¿?æ?¥ç»?ä»¶.xls)

BR

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