mailfront

Plugin: add-received

This plugin adds headers to the start of the message as detailed below.

Configuration

$FIXUP_RECEIVED_HOST

Received host to match

$FIXUP_RECEIVED_IP

Received IP to match

$HEADER_ADD

Additional headers

$PROTO

This and the following four environment variables are inserted into their respective parts in the standard Received: header described below.

${$PROTO}LOCALHOST

${$PROTO}LOCALIP

${$PROTO}REMOTEHOST

${$PROTO}REMOTEIP

Sender Action

None

Recipient Action

None

Data Action

If $FIXUP_RECEIVED_HOST and $FIXUP_RECEIVED_IP are set and do not exactly match the current local host and IP, a Received: header is added to show a transition from one to the other. Then a standard Received: header is added. Finally, if $HEADER_ADD is set, its contents are added to the message headers.

The standard Received: header has the following format:

Received: from helo_domain (remotehost [remoteip]
        by localhost ([remoteip])
        with protocol via transport; date

Message Action

None