Share the same account's newsletter and activity
Choose a source user in Config, add household email addresses, and save. Copies receive that user's exact message; copy addresses stay hidden while the primary recipient remains visible.
- Multiple source-user assignments with individual validated copy addresses
- View only the selected user's primary address on demand
- Production and Manual Welcome respect source and copy exclusions
- TestEmail remains isolated and a primary address is always required
- Separate copy acceptance counts and partial-delivery warnings
- Copy-only saves do not regenerate previews or warm caches

