Hi Mark,
Thanks. We're getting better performance now once we added this to our sendmail .mc file:
FEATURE(`nocanonify')
I wanted to see if we can do further improvements. Right now our email flow is like this for lists:
Internet -> ServerA:25 (/etc/aliases mailman) -> ServerA -> SmartHostA
Mailman receives the mail and then posts to the same local MTA on the host which sends it out to Smart host. I am not sure we can't just have mailman send directly to the smarthost?
What are the implications (on the web site as well as how Mailman functions) if I change DEFAULT_EMAIL_HOST to be SmartHostA?
Thanks, Anil
PS: Now I am getting about 3000 recips in about 5 minutes. Still not the greatest but it's better than before.
On Feb 22, 2012, at 6:53 PM, Mark Sapiro wrote:
Anil Jangity wrote:
This sendmail server is setup to relay the mail to smarthost. When I inject a test mail on port 25 with RCPT and FROM to be a made up junk domain, the email is still delivered *immediately* to the smarthost, there is no resolver issues.
If sendmail was really doing DNS lookups, I would think it would be stuck locally or throw a bounce/error right away. It just seems like it's running serially, and not dequeueing multiple messages to the smarthost at a time.
This issue is not a Mailman issue per se. It is either a Sendmail configuration issue or something to do with the interaction of Sendmail with the smarthost.
We have given you all the information we have to help you with this. If that isn't sufficient, you'll have to pursue this using Sendmail support resources. See http://www.sendmail.com/sm/open_source/support/.
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan