Re: Identifying used patches

Hi Andy.

Good news: I'm quite positive that I've finally identified the patch. :)
It seems I'm using Roberto's patch from 2011-10-06 along with my own RCPTCHECK extension.
As far as I can tell, I did not apply anything else.

Looking at Roberto's ChangeLog, I can see that the ANY-to-CNAME patch was applied in 2013 (more than one year after I built the binary I'm running currently).
That means it is most likely because I need to apply the ANY-to-CNAME, that I have the problem.

I can build a binary, which is 4 bytes smaller than the one which is running, but gcc seems to make a few things upside down (for some reason, it rearranges the strings in bottom-top order instead of top-bottom), so I may be unable to build an exact matching binary.

I've also found one of my newest build-scripts, which indicates that I haven't applied the ANY-to-CNAME DNS-patch.

On 26 Mar 2016 11:44:34 -0600, Andy Bradford wrote:
> Thus said Jens Bauer on Sat, 26 Mar 2016 11:06:14 +0100:
> 
>> (I get a response  if I send the message via telnet, but  if I send it
>> through qmail-smtpd, it never leaves my server).
> 
> What do your logs say?

Ehm ... nada. Silence, quiet, nothing.
(I would expect that it's system.log I should expect any messages in; I have '/var/log/mail.log' and '/var/log/system.log')
I know it's queued, though, because at some point I rebuilt qmail, and it sent the entire queue, but that version didn't allow me to use TLS.

> When I send  an email to [email protected]  I see the
> following in my logs:
> 
> 2016-03-26 11:35:20.319739500 delivery 21223: deferral: 
> 82.195.75.100_does_not_like_recipient./Remote_host_said:_450_4.2.0_<[email protected]>:_Recipient_address_rejected:_Greylisted,_see_http://postgrey.schweikert.ch/help/lists.debian.org.html/Giving_up_on_82.195.75.100./
>
> Which  tells  me  that  they  are  using  some  kind  of  grey  listing.

I think my qmail-smtpd does not even get there. It's probably stuck in the DNS-lookup.

> Eventually, this email should be  delivered when qmail retries delivery.
> I'm confused though,  how did you pass the grey  listing test using just
> telnet? Did  you try  more than  once? Did you  see the  above temporary
> failure error with telnet?

Uhm, I didn't experience any problems; I can't explain why. :/
-Perhaps the server white-listed me after I subscribed the first time (which was before I sent a message using telnet).

> My email does eventually make it:
> 
> 2016-03-26 11:41:52.917416500 delivery 21224: success: 
> 82.195.75.100_accepted_message./Remote_host_said:_250_2.0.0_Ok:_queued_as_6F22F0F/
> 
> And I have a mail in my inbox:
> 
> Subject: Re: Hello
> From: [email protected]
> Date: Sat, 26 Mar 2016 17:41:58 +0000 (UTC)

It's great to see that most qmail users do not have the problem. Thanks for confirming that this works. :)


Love
Jens