We’ve added a new header to mail we handle called “X-Rollernet-Client”. This header will contain the IP address of the server that connected to us without having to handle “Received” headers. This will put the client IP at the fingertips of customers that want post-process their mail and need the client address for any reason.
The IP address will be formatted in square brackets and IPv6 addresses will be fully expanded. An error is indicated by empty square brackets.
Normal IPv4 client example:
X-Rollernet-Client: [192.0.2.10]
Normal IPv6 client example:
X-Rollernet-Client: [IPv6:2001:0db8:4001:0c0b:0000:0000:0000:022b]
Error example:
X-Rollernet-Client: []