Knowing the group settings might have made it easier to help Sugar. Note the one I set to Red.? We don't know the default setting but an email to an accidental choice of setting delivery to no emails, could have occurred to Sugar if she used a screen reader program, or as a result of a miscue by groups.io software to the screen reader.
The first two settings (in bold)seem to say that even moderators' (and owners also?) posts are moderated, Hmmmm.
Most strange is that Messages are set to reply to sender so, unless one knows a fair bit about groups.io, how does one get the Mama owner or moderator to help you?
Group Settings for Mamas-corner
?Only moderators can post to the group.
?Posts to this group require approval from the moderators.
?Messages are set to reply to sender.
?Subscriptions to this group require approval from the moderators.