Let me see if I've got this right. I'm not certain of how the proxy works.
Would the smtp session appear (to the toaster) to be coming from the ip
address of the proxy? If so, that wouldn't be good.
All proxies work that way. They handle the connection for a third
party. If the person is changing the port to run the proxy on port 25
then it works like this
Incoming mail -> proxy (port 25) -> qmailtoaster (port 2525 or whatever).
As such this means that the incoming IP to the QmailToaster will
always be localhost.
This is why that is not a supported configuration. I'm not saying that
the QmailToaster has a supported greylisting feature (it doesn't), I'm
saying that the greylisting feature needs to support qmail
specifically as it doesn't work the same as sendmail or exim.
Thanks,
Erik
RBL processing would be ineffective since it relies on the IP address of the
sending MTA, which is now the proxy instead of the real sender. The proxy
would need to take on RBL processing if you want to keep that functionality.
Note, a very large portion (50% and more) of junk can be rejected using RBLs.
SPF wouldn't work either, since the message would appear to the toaster to
be coming from the proxy instead of the real sender. Likewise domain keys.
It all hinges on the proxy. If the smtp session appears (to the toaster) to
be coming from the proxy, all bets are off. If, however, the proxy simply
does a port forward type of thing (acting simply like a router), then there
wouldn't be a problem.
So, "how does the proxy work?" is the key question.
EE, is that about right?
Shelly wrote:
> If the program accepts the port 25 connection, and then passes it to
> qmail as if qmail actually picked up the connection off port 25, why
> would I lose functionality? Thanks
>
> ----- Original Message ----
> From: "Eric "Shubes"" <[EMAIL PROTECTED]>
> To: [email protected]
> Sent: Friday, 24 November, 2006 3:13:58 PM
> Subject: Re: [qmailtoaster] QMail listening on port 25
>
> I understand spf and domainkeys, as they're not working 100% as it is.
>
> Will you please explain rbl? (And should I presume surbl too?
> And why un-supported? Is there a supported greylisting system?
>
> Erik Espinoza wrote:
>> If you use an un-supported greylisting system, you will lose the
>> ability to use rbl, spf and domainkeys.
>>
>> Erik
>>
>> On 11/23/06, Shelly <[EMAIL PROTECTED]> wrote:
>>>
>>> Hi, Ive installed a SMTP proxy to do greylisting on my toaster. Where
>>> do I
>>> change the qmail config to listen to the proxy, rather than listening on
>>> port 25? The proxy resides on the same box. Thanks
>>>
>>> Send instant messages to your online friends
>>> http://au.messenger.yahoo.com
>>
>> ---------------------------------------------------------------------
>> QmailToaster hosted by: VR Hosted <http://www.vr.org>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>>
>>
>
>
> --
> -Eric 'shubes'
>
--
-Eric 'shubes'
---------------------------------------------------------------------
QmailToaster hosted by: VR Hosted <http://www.vr.org>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
QmailToaster hosted by: VR Hosted <http://www.vr.org>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
