We should probably also change mail.imap.mime_parts_on_demand_threshold to something much higher than 30k. This pref controls what's too little to use mail.imap.mime_parts_on_demand_threshold at all and just download it all. Maybe 500k?
Bug 1629292 Comment 5 Edit History
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We should probably also change mail.imap.mime_parts_on_demand_threshold to something much higher than 30KB. This pref controls what's too little to use mail.imap.mime_parts_on_demand_threshold at all and just download it all. Maybe 500KB?