(In reply to Magnus Melin [:mkmelin] from comment #29) > This bug may have been about something else initially. > Updating the summary, since it's not sometimes: if you check the View Attachments Inline then vCard attachments won't be shown. This happens for all messages AFAIK. Yes, the bug report was about cases where the attachment was shown neither inline nor in the attachment list. But I think its ok to broaden it to also include cases where it *is* shown inline, but not in the attachment list. I'll change the wording of the title a bit to emphasise the distinction between inline attachments and the attachment list. > Traditionally (currently!) we do not mark the message as containing attachments if it's a vCard - see the code I linked. It's probably not worth changing that behavior. The disappearance you see is due to the desire to do exactly this: it's not possible to determine beforehand whether the email has an attachment or not, so we take an educated guess based on the mime type, then adjust if we see that "oh, it was just the person's vcard".
Bug 583572 Comment 30 Edit History
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(In reply to Magnus Melin [:mkmelin] from comment #29) > This bug may have been about something else initially. > Updating the summary, since it's not sometimes: if you check the View Attachments Inline then vCard attachments won't be shown. This happens for all messages AFAIK. Yes, the bug report was about cases where the attachment was shown neither inline nor in the attachment list. But I think its ok to broaden it to also include cases where it *is* shown inline, but not in the attachment list. I'll change the wording of the title a bit to emphasise the distinction between inline attachments and the attachment list.