sent a mail with chinese filename attachment to Gmail error

[crossany]

I install zimbra 3.1.0 when I sent a mail with chinese filename attachment to google mail the attachment filename display the ISO code
like the IMG .

[KevinH]

You should upgrade to 3.1.3 and see if the problem is still there. If so please files a bug.

[crossany]

Originally Posted by KevinH

You should upgrade to 3.1.3 and see if the problem is still there. If so please files a bug.

I update to 3.1.3 the problem still here,I look the the mail source code like this:Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: base64

5L6D5L6D5oiR55qE5paH5qGj
------=_Part_5_15782822.1150786951246
Content-Type: application/pdf
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="Linux指令大全.pdf"
I guess the Google mail consider the attachment's chinese filename is charset is utf-8 but the Zimbra Mail chinese filename charset is ISO8859-1 so it's display the the error code. I the attachement filename also use utf-8 charset, that maybe not this problem.
And I find when I fo forward a mail with a chinese filename attachment to another mail server the filename also display the error code .so it's good for chinese filename .
Thank you very much.