Mail app unexpectedly turns file name in email body into URL

[Helium314]

Steps to reproduce

1. send mail with content

/home/user/something/text.txt
/home/user/something/text.js
/home/user/something/text.html
/home/user/something/text.java

2. check mail in nextcloud mail app

Expected behavior

see

/home/user/something/text.txt
/home/user/something/text.js
/home/user/something/text.html
/home/user/something/text.java

Actual behavior

see

/home/user/something/text.txt
/home/user/something/text.js
/home/user/something/text.html
/home/user/something/http://text.java/

Mail app version

1.11.7

Mailserver or service

does not matter

Operating system

Ubuntu 20.04

PHP engine version

PHP 7.4

Web server

Nginx

Database

MariaDB

Additional info

No response

[miaulalala]

Are you trying to send an attachment?

[Helium314]

All it takes me to reproduce it is sending a mail with the text above.

For the use where I stumbled across the problem I could indeed use an attachment instead, but I think that's not the point here.

[miaulalala]

Thanks. Looks like the text parsing is misinterpreting some stuff. Was this a HTML email or plain text?

Could you also share the raw email body possibly?

[Helium314]

I don't know which part exactly the body is, so I cut down the output of Thunderbird's "view source" to the last parts:

To: <censored>
Cc: 
Subject: test
Message-ID: <20220414141835.Horde.6NlWALrkVlf6uOTSNkRWUY3@<censored>.com>
User-Agent: Horde Application Framework 5
Date: Thu, 14 Apr 2022 14:18:35 +0000
Content-Type: text/plain; charset=utf-8
X-Rspamd-Score: -2.98 / 15.00 / 15.00
X-MBO-SPAM-Probability: 
X-Rspamd-Queue-Id: 1651AA51DE
X-Antivirus: AVG (VPS 220414-2, 4/14/2022), Inbound message
X-Antivirus-Status: Clean

/home/user/something/text.txt
/home/user/something/text.js
/home/user/something/text.html
/home/user/something/text.java

[ChristophWurst]

Confirmed