file corruption after transmission over email

[Marcelo Laia]

On 18/05/22 at 10:42, Paul Gilmartin via Mutt-users wrote:
> On May 18, 2022, at 10:17:56, Marcelo Laia wrote:
> > 
> > Nowadays, senders have a feedback that attach files that I sent was
> > corrupted.
> > 
> > Have a someone similar issue?
> >  
> Do you know (Orr can thee recipients tell you):
>     Content-Type: and Content-Transfer-Encoding: 7bit
> 


I did some tests and neither solved the issue.

Here is what I did.

set send_charset="utf-8"

or

set send_charset="us-ascii:utf-8"

or

set use_8bitmime

or

set use_8bitmime = yes

This is what I receive form server:

Test 1

Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
Content-Disposition: attachment;
        filename*=iso-8859-1''TCC%20L%FAnia-Vieira-v3%2Edocx
Content-Transfer-Encoding: base64


Test 2

Content-Type: text/plain; charset=utf-8
Content-Disposition: inline

Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
Content-Disposition: attachment;
        filename*=utf-8''TCC%20L%C3%BAnia-Vieira-v3%2Edocx
Content-Transfer-Encoding: base64


On the Sent Box, I got, for all messages sent:

From: Marcelo <marcelolaia at gmail.com>
To: echo <echo at univie.ac.at>
Date: Fri, 20 May 2022 11:19:12 -0300
Subject: Test 6
 
[-- Anexo No.1 --]
[-- Tipo: text/plain, Codificação: 7bit, Tamanho: 0K --]
 
 
[-- Anexo No.2: TCC Lúnia-Vieira-v3.docx --]
[-- Tipo: application/vnd.openxmlformats-officedocument.wordprocessingml.document, Codificação:
base64, Tamanho: 71K --]
 
[-- application/vnd.openxmlformats-officedocument.wordprocessingml.document não é aceito (use
'v' para ver esta parte) --]

Please, someone could help me?

Thank you


-- 
Marcelo