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  1.  Home
  2. PCTECH
  3. July 2006

Re: yahoo and "bulk" folder

I'm curious, how does a DNS not get set up correctly?
Not trying to make this a long story or avoid the question, but I will let you know what I know: Apparently dns can be working, but reverse dns not work (or missing certain dns entries) and still 
send/rcv "some" mail.
Customer has their own MS Exchange server, and separate dns server - their isp is their T1 provider. I work remotely via a broadband connection and my email hosted by isp Time Warner Cable. Six months ago my emails going to buildersnotice.com were being received by them, but my provider bounced or rejected all mail coming from buildersnotice.com (no trash or bulk folder..) They would get them back eventually, saying "invalid dns - rejected" in the return mail header. If they sent the mail to anyone with a yahoo account, yahoo put it in the bulk folder. I called my isp, Time Warner, and they said <quote> there is something wrong with their dns, we cannot confirm the email "really" came from buildersnotice.com so we reject it. Have them fix their dns.</quote> They did add something about reverse dns entries MUST be valid fo email to go thru. They would talk to me the customer, but refused to even say hello to network tech for buildersnotice.com (they are not their customer). At yahoo - the tech found nobody to talk to. But he did find lots of posting boards on Exchange server and dns server configuration to avoid this problem. He said it appears more & more isp's are enacting tighter rules for accepting mail. btw-customer buildersnotice.com did not show on any blacklist, but did show in some old stuff from years ago (they had an <unknown> open relay going that spammers were using). Also-net tech there has lots of certs but everything like this takes weeks or months to resolve.... 
jim franz
----- Original Message ----- From: "Dan" <dan27649@xxxxxxxxx> 
To: "PC Technical Discussion for iSeries Users" <pctech@xxxxxxxxxxxx>
Sent: Thursday, July 27, 2006 1:35 PM
Subject: Re: [PCTECH] yahoo and "bulk" folder



On 7/26/06, Jim Franz <franz400@xxxxxxxxxxxx> wrote:


his dns is not setup correctly and yahoo sees him as a "potential"
spammer.



I'm curious, how does a DNS not get set up correctly?

Not blacklisted where they reject it, but not accepted into regular box.
I had similar where all mail from a customer (Exchange Server) accepted by 
90% of their customers, but Yahoo & Aol did this, and my isp always
bounced it back. More isp's adhering to very strict dns rules to limit
spam
and spoofs.



Ooh, you went a little too fast there.  Wanna try again?  ;-)

In general, if my ESP blacklists a domain, can I whitelist it to override
the blacklist?  Is that a "depends on your ESP" question?

- Dan
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