-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Tuesday 2006-04-04 at 17:34 +0200, Sandy Drobic wrote:
That is the only header line you can trust: it has been added by your postfix server. And that is telling you that your server has accepted the mail from a client that announced itself in HELO as "PC01" with the IP 219.142.253.248. Furthermore that IP has no Reverse DNS so Postfix regards the hostname as "unknown".
dig -x 219.142.253.248 +short
gives an empty result, which means it has no reverse DNS entry.
But "whois" gives some info: netname: CHINATELECOM-BJ country: CN descr: CHINANET beijing province network
3. Reject based on ip address with a RBL that blocks those IPs. Be prepared to whitelist some clients that are wrongly listed in these RBLs. That is the reason why such RBLs are chancy.
And also some people like me who send email direct. - -- Cheers, Carlos Robinson -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFEMq7ntTMYHG2NR9URAixtAJ9PPniYLbM6aSwVVCIvj+mJAhFMsACfWHWx QX/yOg5vDmWQWB1Xzuu+Ldo= =wNpY -----END PGP SIGNATURE-----