the attached file's chinese name cannot dispaly rightly

[kingstor]

it can be display rightly in outlook express.
please help to check it. Thanks a lot!

[kingstor]

i have done a full test of chinese filename attachement with diffrent mail sender tools (roundcube,extmail,qqmail,outlook).

so i think we can study qqmail's attached filename's structure because the compatiable is good

* attache file display and sender table

| sender tools	| outlook show | roundcube show|  extmail show | qqmail show|
| outlook       | ok           | wrong charset | winmail.dat   | ok         |
| roundcube	| ATT000034.xls| ok            | unknow.bin    | tcmime.1849.2235.2405.bin  |
| extmail	| ok           | wrong charset | ok            | ok         |
| qqmail	| ok           | ok            | ok            | ok         |

[kingstor]

* attache file description in extmail

Content-Disposition: attachment; filename="2011翠CLINK审┬钡瞶基.xls"
Content-Type: application/vnd.ms-excel; charset="BIG5"; name="2011翠CLINK审┬钡瞶基.xls"
Content-Transfer-Encoding: base64

* attache file description in roundcube

Content-Transfer-Encoding: base64
Content-Type: application/vnd.ms-excel;
 name*0*=UTF-8''2011%E5%B9%B4%E9%A6%99%E6%B8%AFCLINK%E6%9C%BA%E6%88%BF%E7;
 name*1*=%9B%B4%E6%8E%A5%E4%BB%A3%E7%90%86%E5%83%B9.xls
Content-Disposition: attachment;
 filename*0*=UTF-8''2011%E5%B9%B4%E9%A6%99%E6%B8%AFCLINK%E6%9C%BA%E6%88%BF;
 filename*1*=%E7%9B%B4%E6%8E%A5%E4%BB%A3%E7%90%86%E5%83%B9.xls

* attache file description in qqmail

Content-Type: application/octet-stream;
	charset="gbk";
	name="=?gbk?B?MjAxMcTqz+O420NMSU5Lu/q3v9axvdO0+sDtg3IueGxz?="
Content-Disposition: attachment; filename="=?gbk?B?MjAxMcTqz+O420NMSU5Lu/q3v9axvdO0+sDtg3IueGxz?="
Content-Transfer-Encoding: base64

* attache file description in outlook

Content-Type: application/ms-tnef;
	name="winmail.dat"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="winmail.dat"

[kingstor]

maildata send by outlook

[kingstor]

maildata send by qqmail

[kingstor]

maildata send by roundcube

[kingstor]

maildata send by extmail

[alec]

This is not Roundcube issue. Use Settings / Composing Messages / Attachment names / RFC2047/2231 (MS Outlook)

[kingstor]

thanks a lot.

i have fixed send mail issue by roundcube with chinese filename. outlook/extmail/qqmail can display the right filename now.

but the view mail isseu can not be fixed. the chinese filename sent by outlook/extmail is displayed in the wrong charset.

[alec]

Filename in extmail's messages is encoded wrong.

[kingstor]

if the filename in extmail's message is encode wrong, why qqmail and outlook can dispaly right?

so i don't think so. i check the qqmail's data(display right by roundcube) and extmail's data, and i found

the diffrent is filename data in extmail's message have no charset prefix in name item.
but they both have a charset item, i think we can judge the name item's charset by charset item when there is no charset prefix in name item.

i wonder if this is the solution used by outlook and qqmail for the wrong encode message?

filename data in qqmail's message(it can be display by roundcube):

Content-Type: application/octet-stream;charset="gbk";name="=?gbk?B?MjAxMcTqz?+O420NMSU5Lu/q3v9axvdO0+sDtg3IueGxz?="

filename data in extmail's message(it can not be dsplay by roundcube):

Content-Type: application/vnd.ms-excel; charset="BIG5"; name="2011�~����CLINK�������N�z��.xls"

[alec]

Forget my last comment. It works for me. Attachment name is displayed properly in Roundcube. I think it can be malformed by IMAP server. See BODYSTRUCTURE response (enable imap_debug).

[kingstor]

i have upload imap_debug file when i read the mail sent by outlook with roundcube

[kingstor]

imap file

[kingstor]

i also add a test@… for your debug, the imap server:mail.kingstor.com user:test@kingstor.com password roundcube. ​http://mail.kingstor.com/mail to login my roundcube