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sendmail slower after 9 to 10 upgrade
Since upgrading from 9-rel to 10-rel sendmail is pausing for 5-8 seconds below:
mail -v -s "test from web1" test@test.com . EOT test@test.com... Connecting to [127.0.0.1] via relay... ***the above line takes 5 seconds then the rest of the output is quick and sends the e-mail fine 220 web1.ctest.net ESMTP Sendmail 8.14.9/8.14.9; Fri, 19 Jun 2015 14:50:52 -0400 (EDT) >>> EHLO web1.ctest.net 250-web1.ctest.net Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-STARTTLS 250-DELIVERBY 250 HELP >>> STARTTLS 220 2.0.0 Ready to start TLS >>> EHLO web1.ctest.net 250-web1.ctest.net Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP >>> MAIL From:<c@web1.ctest.net> SIZE=42 250 2.1.0 <c@web1.ctest.net>... Sender ok >>> RCPT To:<test@test.com> >>> DATA 250 2.1.5 <test@test.com>... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 250 2.0.0 t5JIoqOn021612 Message accepted for delivery test@test.com... Sent (t5JIoqOn021612 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 web1.ctest.net closing connection resolvers are both good and working. hosts file is fine. I have an old machine on the same lan that works ok so it's not the FW....i'm stumped..and always on a friday! |
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[root@web1 /etc/mail/certs]# dig -x 127.0.0.1
Code:
; <<>> DiG 9.10.2 <<>> -x 127.0.0.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5054 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;1.0.0.127.in-addr.arpa. IN PTR ;; ANSWER SECTION: 1.0.0.127.in-addr.arpa. 1800 IN PTR localhost. ;; Query time: 0 msec ;; SERVER: 10.1.1.2#53(10.1.1.2) ;; WHEN: Fri Jun 19 17:32:00 EDT 2015 ;; MSG SIZE rcvd: 63 Code:
::1 localhost localhost.mydomain.net 127.0.0.1 localhost localhost.mydomain.net 10.1.1.39 web1.ctest.net web1 10.1.1.39 web1.ctest.net. same results with : ::1 localhost web1.ctest.net web1 web1.ctest.net. 127.0.0.1 localhost web1.ctest.net web1 web1.ctest.net. Last edited by chuckdevguy; 20th June 2015 at 05:23 AM. Reason: more info |
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thanks for the welcome and reply!
Here's the output for another few domains as well: # dig test.com Code:
; <<>> DiG 9.10.2 <<>> test.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40757 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;test.com. IN A ;; ANSWER SECTION: test.com. 3600 IN A 23.91.14.101 ;; AUTHORITY SECTION: test.com. 172800 IN NS ns66.worldnic.com. test.com. 172800 IN NS ns65.worldnic.com. ;; Query time: 87 msec ;; SERVER: 10.1.1.2#53(10.1.1.2) ;; WHEN: Sat Jun 20 16:09:14 EDT 2015 ;; MSG SIZE rcvd: 100 # dig -x google.com Code:
; <<>> DiG 9.10.2 <<>> -x google.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29078 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;com.google.in-addr.arpa. IN PTR ;; AUTHORITY SECTION: in-addr.arpa. 5 IN SOA b.in-addr-servers.arpa. nstld.iana.org. 2014054330 1800 900 604800 3600 ;; Query time: 47 msec ;; SERVER: 10.1.1.2#53(10.1.1.2) ;; WHEN: Sat Jun 20 16:10:37 EDT 2015 ;; MSG SIZE rcvd: 120 The delay line actually happens to any e-mail domain I try so I haven't been looking into the destination domain much. There is no ip6 in my rc.conf for it to delay on either. The delay is 5-8 seconds which isn't the typical 30 I'm used to for dns stuff. Is there a new or changed sendmail configuration I should look into? The sendmail config file is cryptic to me Last edited by chuckdevguy; 20th June 2015 at 08:27 PM. Reason: config question |
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Now you've confused me. * If the test.com you are resolving is the "real" test.com, why then does your log in your first post resolve it to the loopback address?
For further problem source identification, I would turn to a network monitoring tool such as tcpdump(8) and see if the delay source can be determined. --- * Don't worry, it happens all the time. |
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I'm going to look into how to use tcpdump since you mentioned it. Never tried it before.
To get a clearer view, here's a another run of the command to gmail with the same results. I've included date before and after, maybe someone can try to time their results to their own email if running 10.1-rel ? $ date && echo "hi" | mail -v -s "subject" my.gmail.acct@gmail.com && date Code:
Sun Jun 21 12:42:04 EDT 2015 my.gmail.acct@gmail.com... Connecting to [127.0.0.1] via relay... ** the usual 5-8 sec delay issue ** 220 machine.mydomain.net ESMTP Sendmail 8.14.9/8.14.9; Sun, 21 Jun 2015 12:42:09 -0400 (EDT) >>> EHLO machine.mydomain.net 250-machine.mydomain.net Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-STARTTLS 250-DELIVERBY 250 HELP >>> STARTTLS 220 2.0.0 Ready to start TLS >>> EHLO machine.mydomain.net 250-machine.mydomain.net Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP >>> MAIL From:<devuser@machine.mydomain.net> SIZE=44 250 2.1.0 <devuser@machine.mydomain.net>... Sender ok >>> RCPT To:<my.gmail.acct@gmail.com> >>> DATA 250 2.1.5 <my.gmail.acct@gmail.com>... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 250 2.0.0 t5LGg9KA005899 Message accepted for delivery my.gmail.acct@gmail.com... Sent (t5LGg9KA005899 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 machine.mydomain.net closing connection Sun Jun 21 12:42:09 EDT 2015 |
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Quote:
You may recognize his name, as he's published a number of well recognized FreeBSD books, including Absolute FreeBSD, FreeBSD Mastery: Storage Essentials, and the very recently published FreeBSD Mastery: ZFS. With "N4SA" at hand, not only will you learn about tcpdump(8), but you'll learn a lot about the rest of network management, problem source identification, and how to speak to network engineers with their terminology. Quote:
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well, just to conclude the thread:
I replaced sendmail with postfix and everything works out of the box. something is going on with sendmail around freebsd version 10.1-rel from what i've read in the freebsd mailinglist. postfix looks to have a well documented website with some real world scenarios. sendmail just seems overall cryptic to me. no solution, but maybe this can save someone else a day of tinkering |
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