On Tue, 5 Jul 2011, Chris Thompson wrote:
On Jun 1 2011, Alan Clegg wrote:
On 6/1/2011 7:16 AM, /dev/rob0 wrote:
On Wed, Jun 01, 2011 at 09:54:04AM +0200, Jan-Piet Mens wrote:
Does anyone else find the bind-users list to be very slow?
[...]
I'll have operations take a look into what is causing the delay (it
doesn't happen on all mail to the list...)
Delays were very noticeable today for the bind-announce messages copied
to bind-users. From the Received headers, the delay seems to happen
between webster.isc.org and the next host: either mx.ams1.isc.org or
mx.pao1.isc.org for different messages. In the worst case, there was
delay of over 3 hours between webster receiving the message and passing
it on.
We are working on this -- I believe we've discovered the problem
internally, it seems to be a bad link between the handoff from mailman to
postfix on a large list, exacerbated by several users whose domains return
a SRVFAIL response. (The irony here of course is that those users need
the help the list could offer the most).
This seems to be because mailman asks postfix to do a verify (but not an
SMTP VRFY) of the addresses as part of the VERP that it does.
One annoying thing that I should note is that removing those problem users
and flushing the queues does NOT help.
-Dan
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