[MM3-users] Query on how to change moderator message to non-members

Hi My users are upset that when their mail is waiting moderation release they receive this message:

'Your mail to 'Members' with the subject

AW: [Members] Hamburg 2019

Is being held until the list moderator can review it for approval.

The reason it is being held:

Post by non-member to a members-only list'

Is their a way to change the text "post by a non-member to a members-only list" as they are registered members of the Joomla site