Re: [SPAM] Whitelist rDNS for a single server

You're mistaken. It has absolutely nothing to do with sending, and 
everything to do with receiving. ;)

On 08/24/2011 11:29 AM, William Olson wrote:
> I believe that is for sending mail only ... not receiving. If I am not
> mistaken.
>
> Bill
>
> http://www.goodcleanemail.com
> http://www.freebsdrocks.net<http://www.centosrocks.net>
>
>
>
> On Wed, Aug 24, 2011 at 2:28 PM, Eric Shubert <[email protected]
> <mailto:[email protected]>> wrote:
>
>     Sorry, that's something I've never seen before. I'm guessing it's a
>     patch to qmail-smtpd, but that's not worth much.
>
>     As a short term work-around, you might try adding an entry to the
>     tcp.smtp file for the server in question, with the RELAYCLIENT=""
>     variable set, eg:
>     70.254.229.27 <tel:70.254.229.27>:RELAYCLIENT="",...(plus whatever
>     other variables your server uses typically)
>     This will essentially make your server an open relay for that IP
>     address. I expect this would work, but be careful with it. And don't
>     forget to "qmailctl cdb" after changing the tcp.smtp file.
>
>     --
>     -Eric 'shubes'
>
>     On 08/24/2011 11:03 AM, Rob Wright wrote:
>
>         Thanks for the reply. It's definitely not spamdyke, as we do not
>         have this
>         installed. When Inter7 did the setup for is SpamAssassin was
>         installed.
>
>         Here's what I've got in my log file, it's qmail-smtpd doing the
>         rejection.
>
>         @400000004e5539281689fb3c tcpserver: ok 10664
>         mail.poncacity.net:70.254.229.__3:25 :70.254.229.27
>         <tel:70.254.229.27>::53562
>         @400000004e5539281aedc6a4 CHKUSER accepted rcpt: from
>         <[email protected].__net:unknown:>  remote
>         <callisto.poncacity.net:unknow__n:70.254
>         .229.27>  rcpt<[email protected]
>         <mailto:[email protected]>>  : found existing recipient
>         @400000004e5539281db9851c qmail-smtpd: senders must have valid
>         reverse DNS
>         @400000004e5539281dbe47dc tcpserver: end 10664 status 256
>
>         Part of the problem here is that I can't figure out what they've
>         hacked to get
>         qmail-smtpd to do the rejection. In my /var/qmail/control
>         directory there is
>         an 'rdns' file with a value of "1"; rdns checking is either on
>         or off.
>
>         Any further ideas?  I suppose this may be a lesson for the boss
>         to "install
>         your own mail server" but that bridge is already crossed. If
>         there's no clear
>         answer I'll just have to call Inter7 for support and let them
>         deal with it.
>
>         Rob
>
>         On Wednesday 24 August 2011 11:49:44 Eric Shubert wrote:
>
>             That would take care of things if the rejection is due to an
>             RBL, but
>             the rejection is stated as being due to lack of rDNS, which is
>             different. The only thing I know of that rejects due to
>             missing rDNS
>             (using qmail) is spamdyke (a very good anti-spam tool btw).
>
>             What specifically is causing the reject? You might post a
>             sample from
>             your smtp log if you can't tell. If it's spamdyke, then the
>             spamdyke
>             config has several ways of whitelisting.
>
>                 http://cr.yp.to/ucspi-tcp/__rblsmtpd.html
>                 <http://cr.yp.to/ucspi-tcp/rblsmtpd.html>
>
>                 Edit your tcp.smtp file and put the address in and set
>                 RBLSMTPD="" and it
>                 will bypass the RBL check for that IP address.
>                 Afterwards, rebuild your
>                 tcp.smtp.cdb file (depending on how your built your
>                 toaster it'll be as
>                 easy as "qmailctl cdb", or some other manual command)
>
>                 Hope that helps.
>
>                 On 11-08-24 9:14 AM, "Rob
>                 Wright"<debianrob@poncacity.__net
>                 <mailto:[email protected]>>   wrote:
>
>                     Greetings. I hope this list is still intact and that
>                     I'm on-topic. I've
>                     searched for a solution and haven't been able to
>                     come up with anything.
>
>                     I've got a problem sprung up recently and can't
>                     quite figure out how to
>                     get
>                     around it. While I'm waiting for a bureaucracy to
>                     unsnaggle some DNS
>                     information on their side, is there anyway for us to
>                     whitelist a single
>                     mail
>                     server that's being rejected for not having rDNS?
>                     The mail server is
>                     known to
>                     us and I feel comfortable with taking this action.
>                     Hopefully this won't
>                     be a
>                     permanent solution but just a dirty hack while I
>                     wait for others to do
>                     their
>                     jobs.
>
>                     We've got a vanilla Inter7 installed vpopmail/qmail
>                     system and I have
>                     not been
>                     able to figure out of this is do-able or not. If
>                     it's possible how can I
>                     go
>                     about doing so?
>
>                     Thanks for any help or pointers.
>
>                     Rob Wright
>                     [email protected] <mailto:[email protected]>
>
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> 


-- 
-Eric 'shubes'


!DSPAM:4e5544dc32711335127836!