Le 08/01/2010 00:43, Victor Duchovni a écrit :
On Fri, Jan 08, 2010 at 12:30:34AM +0200, Patrick Chemla wrote:

Jan  7 22:02:57 postfix postfix/qmgr[26441]: 5B91F873F6: removed
Jan  7 22:02:57 postfix postfix/smtp[27180]: 375DDD5923:
to=<lexoti...@gmail.com>, relay=a139.localpc2105.com[10.0.0.139]:25,
conn_use=59, delay=61550, delays=17019/44435/96/0.17, dsn=2.0.0,
status=sent (250 ok 1262894577 qp 12113)
This recipient does not match the destination that is clogging the
queue. Is the queue clogged with postmaster notices. I never enable
any postmaster notices, they don't scale.

        notify_classes =

done, no change.
This said, the 96 seconds of connection setup latency is an obvious and
severe problem. Why on earth does it take 96 seconds to complete a HELO
handshake with "a139.localpcc2105.com"? You are not going to get much
mail out if each delivery takes 96 seconds...

Is your Postfix server's IP address resolvable on the qmail systems?
Should it be? qmail accept all RELAY CLIENT from local network.
Are they doing some sort of pre-banner delay? ...


When I do  telnet a139.localpc2105.com 25, I get immediate response.
Jan  7 22:02:58 postfix postfix/smtp[27070]: 7F0F2943B3:
to=<gpo...@wanadoo.fr>, relay=a70.localpc2105.com[10.0.0.70]:25,
conn_use=10, delay=73795, delays=29264/44481/50/0.21, dsn=2.0.0,
status=sent (250 ok 1262894577 qp 23067)
Once again, 50 seconds is severely crippled.

When I telnet a70.localpc2105.com 25 I get an immediate response.

I have checked my local DNS. There were some troubles, and I made some improvements. I have now 2 local caching DNS respawning fast. All qmail servers addresses are in the postfix /etc/hosts to avoid Ip lookup. I have checked qmails servers, nothing has changed since they were able to have a queue of 200,000 messages, but they have now a few hundreds only. I have calculated average times to complete HELO. All qmails are in the same kind of value around 2 minutes. Not any one is better than others. Again, each was handling a queue of hundreds thousands before I set up the postfix relay to load balance.
I really don't have a clue. I don't know where to look.
Jan  7 22:02:58 postfix postfix/smtp[27050]: 32BB182182:
to=<gmarin-jardins-lois...@wanadoo.fr>,
relay=a139.localpc2105.com[10.0.0.139]:25, conn_use=48, delay=73799,
delays=29268/44466/65/0.28, dsn=2.0.0, status=sent (250 ok 1262894578 qp
12121)
This is enough. Fix this.

How I can fix it if it works fine through telnet?
Where are the deliveries to the clogged destination???

Sorry, I don't understand this question. Please be clear.

Patrick

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