Unfortunately, Mailbird does not have the ability to display inline .eml or .msg attachments - therefore, if you would like to view these directly from one of your emails, you must access your standard webmail (e.g. Gmail) in order to do so.
If you require any further assistance, please don't hesitate to contact our Customer Happiness Team by clicking here, and a member of the team will always be happy to assist with anything at all.