Forward email with pictures (PNG) and 'Attached Message Part' is 0 bytes
I'm having issues with Thunderbird trying to forward an email with images. The email has 2 PNG images attached and when I click on Forward I see 'Attached Message Part 0 bytes' in the Attachment section. If I send this email and check my Sent, it is indeed 0 bytes and I get an error message stating "This attachment appears to be empty...". This is also the message the person who received said email receives.
I did some searching and seen one suggestion to check your account options to ensure 'Compose messages in HTML format' is enabled. I do have this enabled. In terms of forwarding style, I have it set to 'Inline' which I believe is default and is preferred.
So far this seems to only happen to PNG images. If I forward a DOC, DOCX, PDF, etc. I have no issue with it being attached. If the email contains both a PNG and DOCX, the DOCX will be attached and the PNG won't (with it being replaced with an 'Attached Message Part 0 bytes'). I looked for a JPG email and I was able to forward it properly, so it does seem to be PNG related.
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This is still an issue.
But do all your PNG messages come from the same source? Often Thunderbird receives mail that is malformed and while it will display it, it will not forward it unmodified.
Matt said
But do all your PNG messages come from the same source? Often Thunderbird receives mail that is malformed and while it will display it, it will not forward it unmodified.
They are from different sources. Thunderbird forwards the text properly, just not the PNG. I can also save the PNG to desktop and view them without issue.
When I forward these emails, I can delete the 'Attached Message Part' that is 0 bytes and then proceed to drag over the PNG image(s) directly from the email I was forwarding (without saving them to desktop) and that will correctly send the forwarded email with images attached. Thunderbird is understanding the PNG properly when manually attaching them, but not when you press 'Forward'.