On 1/31/25 11:01, Arte Chambers via Mailman-users wrote:
Thanks, this was helpful. It was a message I sent to the list that was just an image attachment with no body text. I noticed this other thread about messages with attachments, without text discarded silently <https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/E...>. I am attaching the pickle file hoping that it helps anyone researching this issue.
I think the underlying issue is the same as in that thread. While your message has mime structure
multipart/mixed multipart/alternative text/plain <- empty text/html image/jpeg
If you have content filtering Collapse alternatives = yes, it will become
multipart/mixed text/plain <- empty image/jpeg
after collapsing alternatives and that will trigger the error. See https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/message/... for a patch (not yet tested) that I think will fix this.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan