374793 - Text file attachement gets modified

Status: RESOLVED DUPLICATE of bug 121297

(Thunderbird :: General, defect)

Description

[Răzvan Sandu]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; ro; rv:1.8.0.10) Gecko/20070313 Fedora/1.5.0.10-5.fc6 Firefox/1.5.0.10
Build Identifier: Thunderbird version 2.0pre (20070319)

On an Windows XP machine (machine A), I am running Mozilla Thunderbird.

Thunderbird is configured to send plain text messages by default. When receiving, it uses UTF-8 encoding for all messages, i.e. at Tools -> Options -> Display -> Fonts I have:

- Outgoing Mail - Unicode (UTF-8);
- Incoming Mail - Unicode (UTF-8);
- "Apply the default encoding..." is checked;
- "Use the default character..." is checked;

Another machine (machine B) receives (in Outlook Express) a message containing a plain text file as attachement (.txt file).

Machine B forwards this message to machine A.

On machine A, the message that arrives in Thunderbird contains two attachements: an .eml file with the original message and a .txt file with the original attachement.

However, opening the .txt file in Notepad reveals that the file has been modified: the original content is enclosed in a HTML "div" tag as:

<div class="moz-text-flowed" style="font-family: -moz-fixed">
text content from the original .txt attachement
</div>

IMHO, the correct behaviour is that the .txt file gets forwarded in unmodified form.


Regards,
Răzvan



Reproducible: Sometimes

Steps to Reproduce:
See above.

Actual Results:  
The original content of the text file gets enclosed in a <div> HTML tag when it arrives in Thunderbird (see description above). 

Expected Results:  
The file should be unmodified.

Comment 1

[rsx11m]

Possibly related to bug 121297?

> Another machine (machine B) receives (in Outlook Express) a message containing
> a plain text file as attachement (.txt file).
> 
> Machine B forwards this message to machine A.

This would trigger the bug described there if the sending e-mail client (here, Outlook Express) adds format=flowed to the Content Type.

You can check with View > Message Source if this is the case by scrolling down to the header section of that text attachment.

Comment 2

[rsx11m]

No further response from reporter, thus resolving based on comment #1.
Please feel free to reopen this if you have more information to add.