Hi Nick Klyne ,
I'm really sorry that delayed of this reply and about the investigation process,
Investigation A - "Website Creation Team" - Main email parser
Website Creation Team permission
Who can select this category when creating discussion.
Who can view discussion in this category.
Who can reply discussion in this category.
Who can view replies in this category.
Who can moderate this category.
- WSCT (Only this Joomla user group user can do this above permission in this category)
Investigation B - Certified Facilitators Guild - Category email parser
Who can select this category when creating discussion.
Who can view discussion in this category.
Who can reply discussion in this category.
Who can view replies in this category.
Who can moderate this category.
- Administrator - CFG - Super Users (Only this 3 user group user have the permission to do this in this category)
What I'm trying to said is :
First - Whoever create/reply discussion via email, this user must be registered in your site and meet with your category user permission.
If the user under the registered user group, then this user do not have permission to create/reply on this 2 category as I shown on above.
If you're still facing this issues, can you provide us which email address/username are you trying to test this email parser from site?