The address status reports on the originator or destination address. It may include address syntax or validity. These errors can generally be corrected by the sender and retried.
- x.1.0
- Other address status
- x.1.1
- Bad destination mailbox address
- x.1.2
- Bad destination system address
- x.1.3
- Bad destination mailbox address syntax
- x.1.4
- Destination mailbox address ambiguous
- x.1.5
- Destination address valid
- x.1.6
- Destination mailbox has moved, No forwarding address
- x.1.7
- Bad sender's mailbox address syntax
- x.1.8
- Bad sender's system address