Re: [exim] Paging Marc Perkel: rDNS on junkemailfilter.com c…

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Author: Larry Rosenman
Date:  
To: John W. Baxter
CC: exim-users
Subject: Re: [exim] Paging Marc Perkel: rDNS on junkemailfilter.com checking host(s)
On Thu, 9 Nov 2006, John W. Baxter wrote:

> On 11/9/06 8:53 AM, "Larry Rosenman" <ler@???> wrote:
>
>> Marc Perkel wrote:
>>> Larry Rosenman wrote:
>>>> Marc Perkel,
>>>>     Your junkemailfilter.com server that does the sender verify has
>>>> what looks to be dynamic/generic rDNS.  This causes MY server to
>>>> reject your sender verify:
>>>> Nov  8 08:12:24 thebighonker exim[32310]: H=5.ctyme.com
>>>> (pascal.ctyme.com) [69.50.231.5]:35579 I=[192.147.25.65]:25
>>>> F=<sender-verify@???> rejected RCPT
>>>> <ler@???>: EL: () in EL list

>>>>
>>>> Can you get the rDNS to be more legitimate?
>>>>
>>>> Thanks,
>>>> Larry Rosenman
>>>> (Sorry for taking THIS lists bandwidth, but I know Marc is on it, and
>>>> I can't email him Directly because of this).
>>>>
>>>
>>> Well, the reverse lookup is 5.ctyme.com - I suppose I could change
>>> that but why do you think it's dynamic?
>>
>> Dynamic/Generic (I.E. it looks like just a generic place holder).
>
> So would five.ctyme.com also trigger your filter, Larry (assuming that both
> A and PTR were changed)? There isn't exactly a huge difference between the
> names 5.cytime.com and five.cytime.com.

1) the pattern *WAS* [0-9]+.ctyme.com
2) it's been removed.

LER

>
> --John
>
>
>
>


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 512-248-2683                 E-Mail: ler@???
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893