Delays sending to email to the same domain

[Michael Di Martino-3]

When sending the same email to multiple recipients at the same domain
results in a random delay for some of the recipients.

The emails are injected to the queue by our RT ticketing server.
Once injected some recipients receive the email while others will have to wait for up to 10 mins.
This is what the queue looks like after the initial injection.

done  remote  swinick@...
        remote  rsantori@...
        remote  roswald@...
        remote  rbecker@...
  done  remote  nocsupport@...
        remote  nmayorga@...
  done  remote  miles@...
        remote  mdm@...
  done  remote  mbeveridge@...
        remote  jrodriguez@...
        remote  jcapie@...
  done  remote  ibatista@...
        remote  gto@...
  done  remote  ggradel@...
        remote  dsimone@...
  done  remote  cgucker@...

currunencyremote is set to 80

Is there anything that can be done about this behavior.




Michael

[Markus Stumpf-4]

On Mon, Oct 26, 2009 at 11:09:11AM -0500, Michael Di Martino wrote:
> Is there anything that can be done about this behavior.

What does the qmail-send logfile say?
I'd guess it is either due to some antispam strategy at the receiver side
(not more than n parallel connections from the same IP at a time) or their
server cannot handle the number of parallel connections.

Have them create a role account, deliver to that role account and
they can distribute to as many internal addresses they like.

        \Maex