Re: Logging port numbers

> Also, IP addresses of either end of the connection are not recorded in
> any formally defined manner in trace headers- they're just stuffed into a
> comment string in a not entirely consistent or predictable way (try HELOing
> with a dotted quad and see what gets recorded where).
RFC 5321 is pretty clear about what goes in a Received header.  I
agree that the implementations are not always ideal.

R's,
John