Attachments are JPGs. Post is e-mail sent from Thunderbird (e-mail program), which shows sent e-mail as having 2 attachments, 433kB; and sent e-mail size as 597kB.
On receipt (from Groups.io) Thunderbird shows it as having 2 attachments, 467 kB, with e-mail size of 652kB - for member with Max Attachment size 'unlimited'
But for member with Max Attachment size '500kB', the attached e-mail arrives with attachments replaced by links - not as expected. (As attachments are only 433kB)
Jeremy?