On Mon, 2004-10-18 at 10:08, Niek wrote: > On 10/18/2004 7:03 PM +0200, Robin Lynn Frank wrote: > > Mail from the weekend arrived just fine, but this morning, I started > > seeing this in my logs: > > > > Oct 18 09:52:38 omega postfix/smtpd[27078]: NOQUEUE: reject: RCPT from > > unknown[194.242.226.43]: 550 Client host rejected: cannot find your > > hostname, [194.242.226.43]; from=<[EMAIL PROTECTED]> > > to=<[EMAIL PROTECTED]> proto=ESMTP helo=<krisma.oltrelinux.com> > > > > Now, I am starting to see some list mail arrive via the sourceforge.net > > server. > > > > What's up? > > Hi, > > clamav list moved a month ago. > new posting-to address is: [EMAIL PROTECTED] > > Regards, > Niek
I am aware of that, but the problem with their server's dns did not appear until this morning. Yesterday, they were using a different server. Now, the report from dnsreport.com notes: ERROR: The IP of one or more of your mail server(s) have no reverse DNS (PTR) entries (if you see "Timeout" below, it may mean that your DNS servers did not respond fast enough). RFC1912 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mailservers will not accept mail from mailservers with no reverse DNS entry. You can double-check using the 'Reverse DNS Lookup' tool at the DNSstuff site. The problem MX records are: 45.30.103.83.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0)] 43.226.242.194.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0)] and WARNING: One or more of your mailservers may be claiming to be a host other than what it really is (the SMTP greeting should be a 3-digit code, followed by a space or a dash, then the host name). This probably won't cause any harm, but may be a technical violation of RFC821 4.3 (and RFC2821 4.3.1). mail2.oltrelinux.com claims to be host karma.oltrelinux.com. mail.oltrelinux.com claims to be host krisma.oltrelinux.com. -- Robin Lynn Frank - Director of Operations Paradigm-Omega, LLC - http://paradigm-omega.com ================================================ SpamTrap: @null-route.merseine.nu ================================================ We support boycotting overseas outsourcers.
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