Hi Gilles,
Thank you for the suggestion. 
I'm afraid I have some obscure misconfiguration, most likely in pf.conf
I intend to rebuild the machine from scratch and add the rules one by one until 
I break it again :-) 
If any insights relevant to OpenSMTPd arise I'll report back to the list.
kind regards
Richard

On 30/09/2013, at 6:33 PM, Gilles Chehade <[email protected]> wrote:

> On Tue, Sep 24, 2013 at 11:00:35PM +1000, Richard Kernahan wrote:
>> Hi All,
>> OpenSMTPd from the OpenBSD 5.3 i386 release is installed, and outgoing mail 
>> is stuck in the queue, unable to find the MX server to relay to. What I find 
>> confusing is that some emails have been relayed (after some delay).
>> 
>> tcpdump reports that smtpd is sending 3 UDP messages to the name server, but 
>> when the reply arrives for the first request, an ICMP port unreachable 
>> message is returned, indicating the first port is unreachable.
>> I suspected pf (I always suspect pf :-) but when using dig, we see the MX 
>> query and the UDP reply is accepted. The difference I see is that dig sends 
>> only one request instead of 3.
>> In both cases (smtpd and dig) `systat states` shows the UDP states.
>> It *looks* like smtpd is no longer listening for a response on the first 
>> request's port. I don't see a response to the second and third requests.
>> 
>> Does anything in the following configuration appear wrong or questionable?
>> Does smtpd making 3 DNS requests seem reasonable? What might cause it to 
>> stop listening for a response?
>> 
> 
> Sorry for the delay, I forgot about your mail :-)
> 
> Does it still happen if you add domain to the tcpserv macro in your pf.conf ?
> 
> -- 
> Gilles Chehade
> 
> https://www.poolp.org                                          @poolpOrg


--
You received this mail because you are subscribed to [email protected]
To unsubscribe, send a mail to: [email protected]

Reply via email to