Mapping Resent- Headers When Gatewaying to non-RFC 822 Environments (useresent)

The useresent keyword controls the use of Resent- headers when gatewaying to environments that do not support RFC 822 headers. This keyword takes a single integer-valued argument. TABLE 3-7 lists the values used for mapping the Resent- headers:

TABLE  3-7   Resent- Headers Mapping Options

Value	Action
+2	Use any Resent- headers that are present to generate address information.
+1	Use only Resent-From headers to generate address information; all other Resent- headers are ignored.
0	Do not use Resent- headers to generate address information. This is the default.