I have data collection homework to do -- and I will be happy to do it!
Config data and "collate" is next after morning meetings.
Here is some summary data by ISP from the logs:
Email Ave Max Conn
Relay Sent Delay Delay Reused.
google.com 21,466 668 1,591 4,335
outlook.com 8,056 8 243 2,168
yahoodns.net 6,617 8 38 1,135
prodigy.net 1,126 7 42 0
icloud.com 679 7 198 0
comcast.net 531 10 224 0
This may supply some input on the amount of Connection Reuse we are
seeing. I'm not sure why google.com is not reusing connections a
higher percentage of time. We are always trying to send to gmail.com
in the presence of the 25 second delay.
Here is a 25 second instance by google with conn_use=2:
[root@mail01 postfix]# journalctl -u postfix.service | grep 'May 22'
| grep 604BE30A4ACA
May 22 02:47:06 mail01.raystedman.org postfix/smtpd[45725]:
604BE30A4ACA: client=web01-p[192.168.122.11]
May 22 02:47:06 mail01.raystedman.org postfix/cleanup[47234]:
604BE30A4ACA: message-id=.
<[email protected]>
May 22 02:47:06 mail01.raystedman.org postfix/qmgr[46605]:
604BE30A4ACA: from=<en-devo-
bounce+<deleted>[email protected]>, size=34484,
nrcpt=1 (queue active)
May 22 03:13:22 mail01.raystedman.org t123/smtp[46725]:
604BE30A4ACA: to=<<deleted>@gmail.com>,
relay=gmail-smtp-in.l.google.com[142.251.2.26]:25, conn_use=2,
delay=1576, delays=0.05/1550/25/0.84, dsn=2.0.0, status=sent (250
2.0.0 OK 1716372802 41be03b00d2f7-6578166a383si2117154a12.283 -
gsmtp)
May 22 03:13:22 mail01.raystedman.org postfix/qmgr[46605]:
604BE30A4ACA: removed
Another 25 seconds by google without conn_use:
[root@mail01 postfix]# journalctl -u postfix.service | grep 'May 22'
| grep 4224D30C1817
May 22 02:47:14 mail01.raystedman.org postfix/smtpd[45721]:
4224D30C1817: client=web01-p[192.168.122.11]
May 22 02:47:14 mail01.raystedman.org postfix/cleanup[47236]:
4224D30C1817: message-id=<[email protected]>
May 22 02:47:14 mail01.raystedman.org postfix/qmgr[46605]:
4224D30C1817: from=<en-devo-bounce+<deleted>[email protected]>,
size=34488, nrcpt=1 (queue active)
May 22 03:12:57 mail01.raystedman.org t121/smtp[47173]:
4224D30C1817: to=<<deleted>@gmail.com>,
relay=gmail-smtp-in.l.google.com[142.250.141.27]:25, delay=1543,
delays=0.01/1517/25/0.79, dsn=2.0.0, status=sent (250 2.0.0 OK
1716372777 41be03b00d2f7-66d4526311dsi4920983a12.891 - gsmtp)
May 22 03:12:57 mail01.raystedman.org postfix/qmgr[46605]:
4224D30C1817: removed
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