1917190 - Mime messages display with Base64 encoding

Status: RESOLVED DUPLICATE of bug 1890230

(Thunderbird :: Message Reader UI, defect)

Description

[Peter Bariska]

Attachment: Re Purchase order PO2400051 - VitaPlus Ltd..eml

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Steps to reproduce:

Since the upgrade from Thunderbird 115 to 128, messages with attachments often wrongly decoded and displayed. Unreadable body text and attachement. (I guess those message are sent with Mime encoding)
See below one example. Email file attached.

Actual results:

--015_PR3P250MB03087BFE9959511C516583DE93582PR3P250MB0308EURP
Content-Type: image/png; name="image002.png"
Content-Description: image002.png
Content-Disposition: inline; filename="image002.png"; size=67548;
creation-date="Wed, 28 Feb 2024 13:25:20 GMT";
modification-date="Wed, 28 Feb 2024 13:25:20 GMT"
Content-ID: <[e-mail]98DC0>
Content-Transfer-Encoding: base64
iVBORw0KGgoAAAANSUhEUgAAAegAAACKCAYAAABhG9npAAAAAXNSR0IArs4c6QAAAAlwSFlzAAAW
JQAAFiUBSVIk8AAAABl0RVh0U29mdHdhcmUATWljcm9zb2Z0IE9mZmljZX/tNXEAAP+QSURBVHhe
7P0HwGXHcd+Jnsk5J6QBBhjkDIIEwQAmiRRJUYGSZWXJkm1JltdrWVo/2/vs1ertrvX8dm3LipZs

Expected results:

Correct display of the body text and the attachments

Comment 1

[Magnus Melin [:mkmelin]]

Likely bug 1890230

Comment 3

[Wayne Mery (:wsmwk)]

Peter is 128.3.3 solid for you?

Comment 4

[Wayne Mery (:wsmwk)]

p.s. I know you posted in the other bug report 7 days ago. But I think it will be cleaner to track your issue here.