Comments (11)
dg
commented on May 20, 2024
1
Thanks! Now it should work correctly
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milo
commented on May 20, 2024
It is hard to find some RFC for such situation. So, to find some working solution, I use Thunderbird. So I sent attachment named jůůůžě.txt via Thunderbird and GMail SMTP and I got:
Content-Type: text/plain; charset=UTF-8;
name="=?UTF-8?B?asWvxa/Fr8W+xJsudHh0?="
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename*=UTF-8''%6A%C5%AF%C5%AF%C5%AF%C5%BE%C4%9B%2E%74%78%74
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milo
commented on May 20, 2024
And this is via. GMail web interface:
Content-Type: text/plain; charset="UTF-8"; name="=?UTF-8?B?asWvxa/Fr8W+xJsudHh0?="
Content-Disposition: attachment; filename="=?UTF-8?B?asWvxa/Fr8W+xJsudHh0?="
Content-Transfer-Encoding: base64
Content-ID: <f_kfz6pkr50>
X-Attachment-Id: f_kfz6pkr50
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dg
commented on May 20, 2024
Milo, can you try to send files named ", \ and x? I am unable do it on Windows (except the third).
from mail.
milo
commented on May 20, 2024
Third char sould be x? I tried ů"\?x.txt and this is a result of Thunderbird 78.3.1 on Debian 10:
Content-Type: text/plain; charset=UTF-8;
name="=?UTF-8?B?xa8iXD94LnR4dA==?="
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename*=UTF-8''%C5%AF%22%5C%3F%78%2E%74%78%74
Correctly seen as ů"\?x.txt attachment in Thunderbird on Windows and when trying to save it, Thunderbird replaces name to ů___x.txt.
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milo
commented on May 20, 2024
And how encoded by GMail webface:
Content-Type: text/plain; charset="US-ASCII"; name="=?UTF-8?B?xa8iXD94LnR4dA==?="
Content-Disposition: attachment; filename="=?UTF-8?B?xa8iXD94LnR4dA==?="
Content-Transfer-Encoding: base64
X-Attachment-Id: f_kfzgl8310
Content-ID: <f_kfzgl8310>
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milo
commented on May 20, 2024
When sending ".txt.
Thunderbird
Content-Type: text/plain; charset=UTF-8;
name="\".txt"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="\".txt"
GMail
Content-Type: text/plain; charset="US-ASCII"; name="\".txt"
Content-Disposition: attachment; filename="\".txt"
Content-Transfer-Encoding: base64
Content-ID: <f_kfzgqenu0>
X-Attachment-Id: f_kfzgqenu0
from mail.
dg
commented on May 20, 2024
Thanks!
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dg
commented on May 20, 2024
Just to be sure, can you check also \ alone?
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milo
commented on May 20, 2024
Thunderbird "
Content-Type: text/plain; charset=UTF-8;
name="\""
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="\""
\
Content-Type: text/plain; charset=UTF-8;
name="\\"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="\\"
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milo
commented on May 20, 2024
And long ones (160 chars):
1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
and
ž23456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789ž
in Thunderbird:
Content-Type: text/plain; charset=UTF-8;
name="1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename*0="123456789012345678901234567890123456789012345678901234567890";
filename*1="123456789012345678901234567890123456789012345678901234567890";
filename*2="1234567890123456789012345678901234567890"
Content-Type: text/plain; charset=UTF-8;
name="=?UTF-8?Q?=c5=be2345678901234567890123456789012345678901234567890123?=
=?UTF-8?Q?45678901234567890123456789012345678901234567890123456789012?=
=?UTF-8?Q?34567890123456789012345678901234567890123456789=c5=be?="
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename*0*=UTF-8''%C5%BE%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*1*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*2*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*3*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*4*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*5*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*6*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*7*=%38%39%30%31%32%33%34%35%36%37%38%39%30%31%32%33%34%35%36%37;
filename*8*=%38%39%C5%BE
via GMail webface
Content-Type: application/octet-stream;
name=1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
Content-Disposition: attachment;
filename=1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
Content-Transfer-Encoding: base64
Content-ID: <f_kg0oa0110>
X-Attachment-Id: f_kg0oa0110
Content-Type: application/octet-stream;
name="=?UTF-8?Q?=C5=BE23456789012345678901234567890123456789012345678901234567?=
=?UTF-8?Q?890123456789012345678901234567890123456789012345678901234567?=
=?UTF-8?Q?890123456789012345678901234567890123456789=C5=BE?="
Content-Disposition: attachment;
filename="=?UTF-8?Q?=C5=BE23456789012345678901234567890123456789012345678901234567?=
=?UTF-8?Q?890123456789012345678901234567890123456789012345678901234567?=
=?UTF-8?Q?890123456789012345678901234567890123456789=C5=BE?="
Content-Transfer-Encoding: base64
Content-ID: <f_kg0oa04b1>
X-Attachment-Id: f_kg0oa04b1
from mail.
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