usereplyto)
The usereplyto keyword controls the mapping of the
Reply-to: header. The default is usereplyto 0, which means
to use the channel default behavior (which varies from channel to
channel).
| Value | Action |
|---|---|
| -1 | Never map Reply-to: addresses to anything. |
| 0 | Use the channel default mapping of Reply-to: addresses; (varies from channel to channel). This is the default. |
| 1 | Map Reply-to: to From: if no usable From: address exists. |
| 2 | If there is a usable Reply-to: address, then map it to From:; otherwise fall back to the From: address. |