Looks like Ben is using dig. http://en.wikipedia.org/wiki/Domain_Information_Groper
-----Original Message----- From: David W. McSpadden [mailto:[email protected]] Sent: 21 September 2009 14:31 To: NT System Admin Issues Subject: Re: Is this a good SMTP transaction? How are you checking the DNS?? DNStools.net?? iptools.com??? ----- Original Message ----- From: "Ben Scott" <[email protected]> To: "NT System Admin Issues" <[email protected]> Sent: Friday, September 18, 2009 5:27 PM Subject: Re: Is this a good SMTP transaction? On Fri, Sep 18, 2009 at 1:05 PM, David W. McSpadden <[email protected]> wrote: > Specifically my operators cellphones. Seems sometime on Saturday they > updated a rule that any smtp traffic sent to txt.att.net and coming from > 206.18.123.221 was to be accepted and then blackholed. FYI, you appear to have a typo in your DNS records: $ dig +short TXT imcu.com @pdns1.ultradns.net. "v=spf1 ip4:208.18.123.221 include:fusemail.net include:mailanyone.net ~all" "v=spf1 include:mailanyone.net include:fusemail.net ~all" $ Note that the "ip4" directive starts with 208, but I believe your public IP address actually starts with 206. :-) Also, I get two TXT records back from your nameserver, as shown above. I'm not sure if that's allowed or not, nor what the spec says to do, but I suspect it will probabbly just confuse things. I'd suggest getting rid of the duplicate record. Regardless of AT&T brain damage, you *really* want your SPF records to be correct. Incorrect SPF records are usually worse than none at all. The whole point of SPF is to tell other servers what to accept, and if you get it wrong, you end up telling other servers to reject your legitimate mail. > Now my AT&T rep was glad to tell me that they have a service that will > fix > it for 9.99 a month per phone. The proper answer to that is, "How about you give it to me for free, and I don't terminate all our accounts with AT&T?" -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ The information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). The information in this communication may be confidential and/or legally privileged. Nothing in this e-mail is intended to conclude a contract on behalf of QinetiQ or make QinetiQ subject to any other legally binding commitments, unless the e-mail contains an express statement to the contrary or incorporates a formal Purchase Order. For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful. Emails and other electronic communication with QinetiQ may be monitored and recorded for business purposes including security, audit and archival purposes. Any response to this email indicates consent to this. Telephone calls to QinetiQ may be monitored or recorded for quality control, security and other business purposes. QinetiQ Limited Registered in England & Wales: Company Number:3796233 Registered office: 85 Buckingham Gate, London SW1E 6PD, United Kingdom Trading address: Cody Technology Park, Cody Building, Ively Road, Farnborough, Hampshire, GU14 0LX, United Kingdom http://www.qinetiq.com/home/notices/legal.html ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
