On Sun, Feb 08, 2009 at 01:01:49PM +0800, jan gestre wrote:
> New logs with reject_rbl_client sbl-xbl.spamhaus.org added to main.cf
>
>
> eb 8 12:49:52 kartero postfix/smtpd[6465]: NOQUEUE: reject: RCPT from
> web57902.mail.re3.yahoo.com[68.142.236.95]: 554 5.7.1 Service
> unavailable; Client host [68.142.236.95] blocked using
> sbl-xbl.spamhaus.org; from=<[email protected]>
> to=<[email protected]> proto=SMTP
> helo=<web57902.mail.re3.yahoo.com>
Your DNS server is fabricating A records for non-existent hosts. The
real spamhaus would have also returned a TXT record with a URL for
looking up the reason for the block.
Don't use ISP DNS servers that fabricate A records.
--
Viktor.
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