"Frank Ellermann" commented:
David wrote:
what will spf check when the helo is an ip literal ??
IPs don't have TXT records. Result NONE. That's one of many
small differences to lentczner-00, where you'd get an erroneous
FAIL: malformed domain. OTOH lentczner-00 had no HELO checks.
In practice you don't accept any mail after HELO [1.2.3.4] from
6.7.8.9, or do you ?
Bye, Frank
There was an interesting case on spf-help on Saturday.
The message had been properly rejected because of use of an unauthorised IP
address, but I also noticed it had...
Received: from [212.159.107.246] (helo=[192.168.0.4])
I would have expected the message to have been failed for this address
discrepency alone, before even consulting the SPF record. Am I too strict?
Chris Haynes