Effective in version 5.11.0,

Address Verification

can identify addresses that do not provide a door or entry point that the postal carrier can access. A DNA address might not provide a door for mail delivery, or the mailbox might reside behind a locked gate.

To identify DNA addresses,

Address Verification

introduces the

DPV_DNA

field. The

DPV_DNA

field can contain the values

Y

or

N

, or the field can be empty.

Address Verification

can update the

DPV_DNA

field when you verify United States addresses in certified mode and when the address has a DPV return code of

Y

,

S

, or

D

.

Address Verification

returns

Y

in the

DPV_DNA

field for a DNA address and returns

N

otherwise.

Address Verification

does not update the

DPV_DNA

field in other process modes.

To identify DNA addresses,

Address Verification

reads the

USA5C127.MD

database file.

Effective in version

5.11.0

,

Address Verification

can identify addresses that do not provide a reliable mailbox or reception point for mail. The United States considers an address that cannot reliably accept mail to be a No Secure Location (NSL) address.

For example, a storefront might be non-secure if the store is closed on one or more weekdays and does not provide a mailbox to receive mail on those days.

To identify NSL addresses,

Address Verification

introduces the

DPV_NSL

field. The

DPV_NSL

field can contain the values

Y

or

N

, or the field can be empty.

Address Verification

can update the

DPV_NSL

field when you verify United States addresses in certified mode and when the address has a DPV return code of

Y

,

S

, or

D

.

Address Verification

returns

Y

in the

DPV_NSL

for a NSL address and returns

N

otherwise.

Address Verification

does not update the

DPV_NSL

field in other process modes.

To identify NSL addresses,

Address Verification

reads the

USA5C128.MD

database file.