email invoice fails with validation error
- enable invoicing (CiviContribute component settings)
- view a completed contribution and select the Email Invoice option
- send the invoice/email
This results in an outgoing error message: The mail library returned the following error message: Validation failed for: ""NAME""
I've reproduced on three different sites, and email works properly in all other contexts, so I'm pretty certain this isn't a site-specific issue. There seems to be an issue with the validation process for the FROM address.