The Delivered-To: email header is a non-standard email header used by some mailbox providers when forwarding email to another address.
It is primarily used to detect forwarding loops when two different email accounts forward email to each other.
The Delivered-To: email header is a non-standard email header used by some mailbox providers when forwarding email to another address.
It is primarily used to detect forwarding loops when two different email accounts forward email to each other.