It was observed that email to raytheon.com users was not getting through.

http://www.terraswarm.org/terraswarm/admin/terraswarm/members shows that various raytheon.com and intel.com addresses are marked as nomail.

/export/home/mailman_7/logs/bounce contains:

Oct 11 17:30:02 2014 (20579) webmaster: address webmaster-admin@terraswarm.org not a member.
Oct 12 17:30:01 2014 (4435) webmaster: address webmaster-admin@terraswarm.org not a member.
Oct 13 17:30:01 2014 (30534) webmaster: address webmaster-admin@terraswarm.org not a member.
Oct 14 03:49:01 2014 (14922) Terraswarm: ron_c_williamson@raytheon.com - first
Oct 14 09:44:01 2014 (30882) Terraswarm: ron_c_williamson@raytheon.com - 0 more allowed over 410700 secs
Oct 14 12:51:01 2014 (19201) Tools: mukesh.ranjan@intel.com - 0 more allowed over -271679 secs
Oct 14 17:30:01 2014 (6595) webmaster: address webmaster-admin@terraswarm.org not a member.

/var/log/maillog contains:

ct 14 03:26:38 moog sendmail[6725]: s9EAL59S006716: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 03:26:39 moog sendmail[6725]: STARTTLS=client, relay=dfw-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:26:43 moog sendmail[6725]: s9EAL59S006716: to=, delay=00:05:38, xdelay=00:05:06, mailer=esmtp, pri=2303161, relay=dfw-mailin2.raythe
on.com. [199.46.199.206], dsn=2.0.0, stat=Sent (s9EAQcSJ026489 Message accepted for delivery)
Oct 14 03:26:43 moog sendmail[6725]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:26:44 moog sendmail[6725]: s9EAL59S006716: to=,,,,,,,,,,, delay=00:05:39, xdelay=00:00:01, mailer=esmtp, pri=2303161, relay=cluster5.us.messagelabs.com. [216.82.250.83], dsn=2.0.0, stat=Sent (ok 1413282404 qp 10808 server-6.tower-120.messagelabs.com!1413282403!12371642!1)
Oct 14 03:26:44 moog sendmail[6725]: STARTTLS=client, relay=e32.co.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 03:26:46 moog sendmail[8053]: s9EAQjDH008053: from=, size=892, class=0, nrcpts=1, msgid=<20141014_102646_044754.kontakt@seo.pgoptimierung.com>, proto=ESMTP, daemon=MTA, relay=li757-81.members.linode.com [80.85.86.81]
Oct 14 03:26:46 moog sendmail[8055]: STARTTLS=client, relay=mx.berkeley.edu., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 03:26:47 moog sendmail[6725]: s9EAL59S006716: to=,,,,,,,,, delay=00:05:42, xdelay=00:00:03, mailer=esmtp, pri=2303161, relay=e32.co.us.ibm.com. [32.97.110.150], dsn=2.0.0, stat=Sent (OK <14101410-0005-0000-0000-0000059D8F9F>)
Oct 14 03:26:48 moog sendmail[6725]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:26:48 moog sendmail[6725]: s9EAL59S006716: to=,,,,,,,,,,,, delay=00:05:43, xdelay=00:00:01, mailer=esmtp, pri=2303161, relay=mxb-00105401.gslb.pphosted.com. [67.231.152.184], dsn=2.0.0, stat=Sent (1q11gf8h8s-1 Message accepted for delivery)

and then

Oct 14 03:48:30 moog sendmail[13621]: s9EAh1sj013618: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 03:48:31 moog sendmail[13621]: STARTTLS=client, relay=lax-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:48:32 moog sendmail[13621]: s9EAh1sj013618: to=, delay=00:05:31, xdelay=00:05:02, mailer=esmtp, pri=2304333, relay=lax-mailin2.raytheon.com. [199.46.200.206], dsn=5.0.0, stat=Service unavailable
Oct 14 03:48:33 moog sendmail[13621]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:48:35 moog sendmail[13621]: s9EAh1sj013618: to=,,,,,,,,,,, delay=00:05:34, xdelay=00:00:03, mailer=esmtp, pri=2304333, relay=cluster5.us.messagelabs.com. [216.82.242.147], dsn=2.0.0, stat=Sent (ok 1413283715 qp 10189 server-3.tower-95.messagelabs.com!1413283712!29766610!1)
Oct 14 03:48:36 moog sendmail[13621]: STARTTLS=client, relay=e36.co.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 03:48:39 moog sendmail[13621]: s9EAh1sj013618: to=,,,,,,,,, delay=00:05:38, xdelay=00:00:04, mailer=esmtp, pri=2304333, relay=e36.co.us.ibm.com. [32.97.110.154], dsn=2.0.0, stat=Sent (OK <14101410-0021-0000-0000-0000055F94EE>)
Oct 14 03:48:39 moog sendmail[13621]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:48:40 moog sendmail[13621]: s9EAh1sj013618: to=,,,,,,,,,,,, delay=00:05:39, xdelay=00:00:01, mailer=esmtp, pri=2304333, relay=mxb-00105401.gslb.pphosted.com. [67.231.152.184], dsn=2.0.0, stat=Sent (1q0dewek47-1 Message accepte
d for delivery)
Oct 14 03:48:40 moog sendmail[13621]: s9EAh1sj013618: s9EAmesj013621: DSN: Service unavailable
Oct 14 03:48:40 moog sendmail[13621]: s9EAmesj013621: to="|/home/mailman_7/mail/wrapper_7 mailowner terraswarm", ctladdr= (8/0), delay=00:00:00, xdelay=00:00:00, mailer=prog, pri=30000, dsn=2.0.0, stat=Sent
Here's some more.
Oct 14 10:28:28 moog sendmail[27908]: s9EHN2fx027905: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 10:28:30 moog sendmail[27908]: STARTTLS=client, relay=bos-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 10:28:33 moog sendmail[27908]: s9EHN2fx027905: to=, delay=00:05:31, xdelay=00:05:05, mailer=esmtp, pri=2308584, relay=bos-mailin2.raytheon.com. [199.46.198.206], dsn=2.0.0, stat=Sent (s9EHSSCB006059 Message accepted for delivery)
Oct 14 10:28:34 moog sendmail[27908]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 10:28:35 moog sendmail[27908]: s9EHN2fx027905: to=,,,,,,,,,,, delay=00:05:33, xdelay=00:00:02, mailer=esmtp, pri=2308584, relay=cluster5.us.messagelabs.com. [216.82.241.195], dsn=2.0.0, stat=Sent (ok 1413307715 qp 31467 server-7.tower-119.messagelabs.com!1413307714!28503591!1)
Oct 14 10:28:36 moog sendmail[27908]: STARTTLS=client, relay=e31.co.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 10:28:39 moog sendmail[27908]: s9EHN2fx027905: to=,,,,,,,,, delay=00:05:37, xdelay=00:00:04, mailer=esmtp, pri=2308584, relay=e31.co.us.ibm.com. [32.97.110.149], dsn=2.0.0, stat=Sent (OK <14101417-8236-0000-0000-00000625FD9C>)
Oct 14 10:28:39 moog sendmail[27908]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 10:28:40 moog sendmail[27908]: s9EHN2fx027905: to=,,,,,,,,,,,, delay=00:05:38, xdelay=00:00:01, mailer=esmtp, pri=2308584, relay=mxb-00105401.gslb.pphosted.com. [67.231.144.184], dsn=2.0.0, stat=Sent (1q0ecvwyr-1 Message accepted for delivery)

ident

http://osdir.com/ml/os.openbsd.newbies/2008-04/msg00018.html suggests

Did you try set Timeout.ident=0 in sendmail config?
Probably you have a problem with ident packets (port 113).
sendmail.mc has
define(`confTO_IDENT', `0')dnl
and sendmail.cf has
O Timeout.ident=0
sendmail.com says:
confTO_IDENT Timeout.ident [5s] The timeout waiting for a response to an IDENT query.

https://groups.google.com/forum/#!topic/comp.mail.sendmail/cm2rkKMHghw says:

Turn off ident queries (O Timeout.ident=0) and see if it makes any difference.

On some systems sendmail hangs when ident query is rejected by firewall (ICMP port unreachable instead of TCP reset).

FcRDNS

http://osdir.com/ml/openbsd.newbies/2008-04/msg00013.html suggests

I understand that lacking reverse DNS can cause these problems, but I have corrected that problem and now pass FcRDNS test. But these problems continue. All other mail works fine.
The only other possibility I have encountered is to change a timeout for sendmail. in sendmail.cf
Any suggestions?

http://ipadmin.junkemailfilter.com/rdns.php is a form that indicates that moog's IP address is ok

Looking up Reverse DNS for IP Address: [128.32.48.150]

RDNS for 128.32.48.150 is: [moog.EECS.Berkeley.EDU] - (PTR record - 150.48.32.128.in-addr.arpa)
IP Address for moog.EECS.Berkeley.EDU is: [128.32.48.150]
SUCCESS! - Forward Confirmed Reverse DNS is CORRECT!
The IP address for the reverse lookup name matches the original IP

Setup

http://www.linuxquestions.org/questions/linux-server-73/sendmail-relay-to-godaddy-788580/page2.html - instructions about how to set up for godaddy.

Firewall

http://compgroups.net/comp.mail.sendmail/problem-stat-timeout-waiting-for-input-dur/1307089 - firewall problems caused similar messages

Intel

At first, I thought email was bouncing to intel.com. These addresses popped up:

boyan.boyanov@intel.com
brian.r.murphy@intel.com
ling.huang@intel.com
mukesh.ranjan@intel.com
petros.maniatis@intel.com
rajiv.mathur@intel.com
Mukesh's and Petros' LinkedIn profiles show that they worked at Intel Labs, which has closed. I closed these accounts.

Brian R. Murphy probably also worked at Intel Labs.

Probably these should be closed.

Mail sometimes works

Mail to ron_c_williamson@raytheon worked when it went through bos-mailin2.raytheon.com:
Oct 12 12:28:38 moog sendmail[7203]: STARTTLS=client, relay=bos-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 12 12:28:41 moog sendmail[7212]: s9CJS6sg007208: to=,, delay=00:00:34, xdelay=00:00:03, mailer=esmtp, pri=5584939, relay=barracuda.caltech.edu. [131.215.239.131], dsn=2.0.0, stat=Sent (Ok: queued as 4247513FA164)
Oct 12 12:28:42 moog sendmail[8030]: s9CJSWml007899: to=tah@eecs.berkeley.edu, delay=00:00:09, xdelay=00:00:08, mailer=esmtp, pri=30746, relay=mx.berkeley.edu. [169.229.218.141], dsn=2.0.0, stat=Sent (OK id=1XdOol-0001Pp-4L)
Oct 12 12:28:42 moog sendmail[7203]: s9CJS4Yu007199: to=, delay=00:00:38, xdelay=00:00:06, mailer=esmtp, pri=2374939, relay=bos-mailin2.raytheon.com. [199.46.198.206], dsn=2.0.0, stat=Sent (s9CJSbat006242 Message accepted for delivery)
and
Oct 13 10:51:31 moog sendmail[12063]: s9DHk4tq012059: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 13 10:51:31 moog sendmail[12063]: STARTTLS: write error=syscall error (-1), errno=104, get_error=error:00000000:lib(0):func(0):reason(0), retry=99, ssl_err=5
Oct 13 10:51:32 moog sendmail[12071]: STARTTLS=client, relay=incoming-relays.illinois.edu., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 13 10:51:32 moog sendmail[12063]: STARTTLS=client, relay=dfw-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 13 10:51:34 moog sendmail[19232]: s9BMd82M018242: to=, delay=1+19:12:26, xdelay=00:02:00, mailer=esmtp, pri=3910859, relay=d48eq.hetb.eu. [198.12.98.87], dsn=4.0.0, stat=Deferred: Connection timed out with d48eq.hetb.eu.
Oct 13 10:51:34 moog sendmail[12071]: s9DHk6q5012067: to=,,,, delay=00:05:27, xdelay=00:00:07, mailer=esmtp, pri=5518433, relay=incoming-relays.illinois.edu. [192.17.13.53], dsn=2.0.0, stat=Sent (s9DHpR87028627 Message accepted for delivery)
Oct 13 10:51:35 moog sendmail[12063]: s9DHk4tq012059: to=, delay=00:05:31, xdelay=00:05:05, mailer=esmtp, pri=2308433, relay=dfw-mailin2.raytheon.com. [199.46.199.206], dsn=2.0.0, stat=Sent (s9DHpVUK005633 Message accepted for delivery)
Oct 13 10:51:36 moog sendmail[12063]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 13 10:51:37 moog sendmail[12063]: s9DHk4tq012059: to=,,,,,,,,,,, delay=00:05:33, xdelay=00:00:02, mailer=esmtp, pri=2308433, relay=cluster5.us.messagelabs.com. [216.82.253.163], dsn=2.0.0, stat=Sent (ok 1413222696 qp 6019 server-9.tower-166.messagelabs.com!1413222696!14597085!1)
and
Oct 13 16:26:36 moog sendmail[29817]: s9DNL369029814: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 13 16:26:38 moog sendmail[29817]: STARTTLS=client, relay=dfw-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 13 16:26:41 moog sendmail[29817]: s9DNL369029814: to=, delay=00:05:38, xdelay=00:05:05, mailer=esmtp, pri=2458001, relay=dfw-mailin2.raytheon.com. [199.46.199.206], dsn=2.0.0, stat=Sent (s9DNQaFv029092 Message accepted for delivery)
Oct 13 16:26:43 moog sendmail[29817]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 13 16:26:44 moog sendmail[29817]: s9DNL369029814: to=,,,,,,,,,,, delay=00:05:41, xdelay=00:00:03, mailer=esmtp, pri=2458001, relay=cluster5.us.messagelabs.com. [216.82.241.195], dsn=2.0.0, stat=Sent (ok 1413242804 qp 4866 server-16.tower-119.messagelabs.com!1413242802!30934502!1)
Oct 13 16:26:45 moog sendmail[29817]: STARTTLS=client, relay=e3.ny.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 13 16:26:48 moog sendmail[29817]: s9DNL369029814: to=,,,,,,,,, delay=00:05:45, xdelay=00:00:04, mailer=esmtp, pri=2458001, relay=e3.ny.us.ibm.com. [32.97.182.143], dsn=2.0.0, stat=Sent (OK <14101323-0009-0000-0000-000002163085>)
Oct 13 16:26:48 moog sendmail[29817]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 13 16:26:50 moog sendmail[29817]: s9DNL369029814: to=,,,,,,,,,,,, delay=00:05:47, xdelay=00:00:02, mailer=esmtp, pri=2458001, relay=mxb-00105401.gslb.pphosted.com. [67.231.144.184], dsn=2.0.0, stat=Sent (1pyxrj0q2r-1 Message accepted for delivery)
and dfw-mailin2 works
Oct 14 03:26:38 moog sendmail[6725]: s9EAL59S006716: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 03:26:39 moog sendmail[6725]: STARTTLS=client, relay=dfw-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:26:43 moog sendmail[6725]: s9EAL59S006716: to=, delay=00:05:38, xdelay=00:05:06, mailer=esmtp, pri=2303161, relay=dfw-mailin2.raytheon.com. [199.46.199.206], dsn=2.0.0, stat=Sent (s9EAQcSJ026489 Message accepted for delivery)
Oct 14 03:26:43 moog sendmail[6725]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:26:44 moog sendmail[6725]: s9EAL59S006716: to=,,,,,,,,,,, delay=00:05:39, xdelay=00:00:01, mailer=esmtp, pri=2303161, relay=cluster5.us.messagelabs.com. [216.82.250.83], dsn=2.0.0, stat=Sent (ok 1413282404 qp 10808 server-6.tower-120.messagelabs.com!1413282403!12371642!1)
Oct 14 03:26:44 moog sendmail[6725]: STARTTLS=client, relay=e32.co.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 03:26:46 moog sendmail[8053]: s9EAQjDH008053: from=, size=892, class=0, nrcpts=1, msgid=<20141014_102646_044754.kontakt@seo.pgoptimierung.com>, proto=ESMTP, daemon=MTA, relay=li757-81.members.linode.com [80.85.86.81]
Oct 14 03:26:46 moog sendmail[8055]: STARTTLS=client, relay=mx.berkeley.edu., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 03:26:47 moog sendmail[6725]: s9EAL59S006716: to=,,,,,,,,, delay=00:05:42, xdelay=00:00:03, mailer=esmtp, pri=2303161, relay=e32.co.us.ibm.com. [32.97.110.150], dsn=2.0.0, stat=Sent (OK <14101410-0005-0000-0000-0000059D8F9F>)
Oct 14 03:26:48 moog sendmail[6725]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:26:48 moog sendmail[6725]: s9EAL59S006716: to=,,,,,,,,,,,, delay=00:05:43, xdelay=00:00:01, mailer=esmtp, pri=2303161, relay=mxb-00105401.gslb.pphosted.com. [67.231.152.184], dsn=2.0.0, stat=Sent (1q11gf8h8s-1 Message accepted for delivery)
Here, lax-mailin2.raytheon returns stat=Service unavailable and the last lines are DSN: Service unavailable
Oct 14 03:48:30 moog sendmail[13621]: s9EAh1sj013618: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 03:48:31 moog sendmail[13621]: STARTTLS=client, relay=lax-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:48:32 moog sendmail[13621]: s9EAh1sj013618: to=, delay=00:05:31, xdelay=00:05:02, mailer=esmtp, pri=2304333, relay=lax-mailin2.raytheon.com. [199.46.200.206], dsn=5.0.0, stat=Service unavailable
Oct 14 03:48:33 moog sendmail[13621]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:48:35 moog sendmail[13621]: s9EAh1sj013618: to=,,,,,,,,,,, delay=00:05:34, xdelay=00:00:03, mailer=esmtp, pri=2304333, relay=cluster5.us.messagelabs.com. [216.82.242.147], dsn=2.0.0, stat=Sent (ok 1413283715 qp 10189 server-3.tower-95.messagelabs.com!1413283712!29766610!1)
Oct 14 03:48:36 moog sendmail[13621]: STARTTLS=client, relay=e36.co.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 03:48:39 moog sendmail[13621]: s9EAh1sj013618: to=,,,,,,,,, delay=00:05:38, xdelay=00:00:04, mailer=esmtp, pri=2304333, relay=e36.co.us.ibm.com. [32.97.110.154], dsn=2.0.0, stat=Sent (OK <14101410-0021-0000-0000-0000055F94EE>)
Oct 14 03:48:39 moog sendmail[13621]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 03:48:40 moog sendmail[13621]: s9EAh1sj013618: to=,,,,,,,,,,,, delay=00:05:39, xdelay=00:00:01, mailer=esmtp, pri=2304333, relay=mxb-00105401.gslb.pphosted.com. [67.231.152.184], dsn=2.0.0, stat=Sent (1q0dewek47-1 Message accepted for delivery)
Oct 14 03:48:40 moog sendmail[13621]: s9EAh1sj013618: s9EAmesj013621: DSN: Service unavailable
Oct 14 03:48:40 moog sendmail[13621]: s9EAmesj013621: to="|/home/mailman_7/mail/wrapper_7 mailowner terraswarm", ctladdr= (8/0), delay=00:00:00, xdelay=00:00:00, mailer=prog, pri=30000, dsn=2.0.0, stat=Sent
Later, lax-mailin2 works?
Oct 14 06:29:30 moog sendmail[17134]: s9EDO3UH017110: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 06:29:31 moog sendmail[17134]: STARTTLS=client, relay=lax-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 06:29:35 moog sendmail[17134]: s9EDO3UH017110: to=, delay=00:05:32, xdelay=00:05:05, mailer=esmtp, pri=2305318, relay=lax-mailin2.raytheon.com. [199.46.200.206], dsn=2.0.0, stat=Sent (s9EDTUld022284 Message accepted for delivery)
Oct 14 06:29:36 moog sendmail[17134]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 06:29:36 moog sendmail[17134]: s9EDO3UH017110: to=,,,,,,,,,,, delay=00:05:33, xdelay=00:00:01, mailer=esmtp, pri=2305318, relay=cluster5.us.messagelabs.com. [216.82.253.163], dsn=2.0.0, stat=Sent (ok 1413293376 qp 25336 server-5.tower-166.messagelabs.com!1413293376!7485964!1)
Oct 14 06:29:37 moog sendmail[17134]: STARTTLS=client, relay=e5.ny.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 06:29:39 moog sendmail[22548]: s9DHK52k019232: to=, delay=18:36:14, xdelay=00:02:00, mailer=esmtp, pri=1674402, relay=yoc.org. [69.172.201.208], dsn=4.0.0, stat=Deferred: Connection timed out with yoc.org.
Oct 14 06:29:40 moog sendmail[17134]: s9EDO3UH017110: to=,,,,,,,,, delay=00:05:37, xdelay=00:00:04, mailer=esmtp, pri=2305318, relay=e5.ny.us.ibm.com. [32.97.182.145], dsn=2.0.0, stat=Sent (OK <14101413-0013-0000-0000-000001E6EFC0>)
Oct 14 06:29:41 moog sendmail[22548]: s9DHK52l019232: to=, delay=18:34:02, xdelay=00:00:02, mailer=esmtp, pri=1675714, relay=wishfeel.com. [112.175.69.37], dsn=4.0.0, stat=Deferred: Connection refused by wishfeel.com.
Oct 14 06:29:41 moog sendmail[17134]: STARTTLS=client, relay=mxa-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 06:29:41 moog sendmail[17134]: s9EDO3UH017110: to=,,,,,,,,,,,, delay=00:05:38, xdelay=00:00:01, mailer=esmtp, pri=2305318, relay=mxa-00105401.gslb.pphosted.com. [67.231.144.184], dsn=2.0.0, stat=Sent (1q0yrnn05p-1 Message accepted for delivery)
Here, lax-mailin2 gives a stat=Service unavailable again. Note that the last lines are DSN: Service unavailable?
Oct 14 09:43:39 moog sendmail[28621]: s9EGc2GM028618: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 09:43:41 moog sendmail[28621]: STARTTLS=client, relay=lax-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 09:43:41 moog sendmail[28621]: s9EGc2GM028618: to=, delay=00:05:39, xdelay=00:05:02, mailer=esmtp, pri=2423764, relay=lax-mailin2.raytheon.com. [199.46.200.206], dsn=5.0.0, stat=Service unavailable
Oct 14 09:43:42 moog sendmail[28621]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 09:43:43 moog sendmail[28621]: s9EGc2GM028618: to=,,,,,,,,,,, delay=00:05:41, xdelay=00:00:02, mailer=esmtp, pri=2423764, relay=cluster5.us.messagelabs.com. [216.82.253.147], dsn=2.0.0, stat=Sent (ok 1413305023 qp 5666 server-13.tower-165.messagelabs.com!1413305022!19798209!1)
Oct 14 09:43:44 moog sendmail[28621]: STARTTLS=client, relay=e6.ny.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 09:43:44 moog sendmail[19572]: STARTTLS=client, relay=mx.berkeley.edu., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 09:43:47 moog sendmail[28621]: s9EGc2GM028618: to=,,,,,,,,, delay=00:05:45, xdelay=00:00:04, mailer=esmtp, pri=2423764, relay=e6.ny.us.ibm.com. [32.97.182.146], dsn=2.0.0, stat=Sent (OK <14101416-0021-0000-0000-000001F98DBB>)
Oct 14 09:43:47 moog sendmail[28621]: STARTTLS=client, relay=mxa-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 09:43:48 moog sendmail[28621]: s9EGc2GM028618: to=,,,,,,,,,,,, delay=00:05:46, xdelay=00:00:01, mailer=esmtp, pri=2423764, relay=mxa-00105401.gslb.pphosted.com. [67.231.144.184], dsn=2.0.0, stat=Sent (1q0sha3km8-1 Message accepted for delivery)
Oct 14 09:43:48 moog sendmail[28621]: s9EGc2GM028618: s9EGhmGM028621: DSN: Service unavailable
Oct 14 09:43:49 moog sendmail[28621]: s9EGhmGM028621: to="|/home/mailman_7/mail/wrapper_7 mailowner terraswarm", ctladdr= (8/0), delay=00:00:01, xdelay=00:00:00, mailer=prog, pri=30000, dsn=2.0.0, stat=Sent
and
Oct 14 10:28:28 moog sendmail[27908]: s9EHN2fx027905: timeout waiting for input from inbound.vetted.raytheon.com. during client greeting
Oct 14 10:28:30 moog sendmail[27908]: STARTTLS=client, relay=bos-mailin2.raytheon.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 10:28:33 moog sendmail[27908]: s9EHN2fx027905: to=, delay=00:05:31, xdelay=00:05:05, mailer=esmtp, pri=2308584, relay=bos-mailin2.raytheon.com. [199.46.198.206], dsn=2.0.0, stat=Sent (s9EHSSCB006059 Message accepted for delivery)
Oct 14 10:28:34 moog sendmail[27908]: STARTTLS=client, relay=cluster5.us.messagelabs.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 10:28:35 moog sendmail[27908]: s9EHN2fx027905: to=,,,,,,,,,,, delay=00:05:33, xdelay=00:00:02, mailer=esmtp, pri=2308584, relay=cluster5.us.messagelabs.com. [216.82.241.195], dsn=2.0.0, stat=Sent (ok 1413307715 qp 31467 server-7.tower-119.messagelabs.com!1413307714!28503591!1)
Oct 14 10:28:36 moog sendmail[27908]: STARTTLS=client, relay=e31.co.us.ibm.com., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256
Oct 14 10:28:39 moog sendmail[27908]: s9EHN2fx027905: to=,,,,,,,,, delay=00:05:37, xdelay=00:00:04, mailer=esmtp, pri=2308584, relay=e31.co.us.ibm.com. [32.97.110.149], dsn=2.0.0, stat=Sent (OK <14101417-8236-0000-0000-00000625FD9C>)
Oct 14 10:28:39 moog sendmail[27908]: STARTTLS=client, relay=mxb-00105401.gslb.pphosted.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-SHA, bits=256/256
Oct 14 10:28:40 moog sendmail[27908]: s9EHN2fx027905: to=,,,,,,,,,,,, delay=00:05:38, xdelay=00:00:01, mailer=esmtp, pri=2308584, relay=mxb-00105401.gslb.pphosted.com. [67.231.144.184], dsn=2.0.0, stat=Sent (1q0eucvwyr-1 Message accepted for delivery)
[root@moog logs]# dig any raytheon.com
;; Truncated, retrying in TCP mode.

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6 <<>> any raytheon.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54388
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;raytheon.com.                  IN      ANY

;; ANSWER SECTION:
raytheon.com.           300     IN      A       199.46.198.88
raytheon.com.           300     IN      A       199.46.199.89
raytheon.com.           14400   IN      MX      10 tus-mailin2.raytheon.com.
raytheon.com.           14400   IN      MX      5 inbound.vetted.raytheon.com.
raytheon.com.           14400   IN      MX      10 bos-mailin2.raytheon.com.
raytheon.com.           14400   IN      MX      10 dfw-mailin2.raytheon.com.
raytheon.com.           14400   IN      MX      10 lax-mailin2.raytheon.com.
raytheon.com.           14400   IN      TXT     "v=spf1 ip4:199.46.196.192/26 ip4:199.46.198.192/26 ip4:199.46.199.192/26 ip4:199.46.200.192/26 ip4:199.46.245.192/26 ip4:199
.46.185.192/29 ip4:199.46.244.192/26 ip4:199.46.172.192/26 -all"
raytheon.com.           14400   IN      TXT     "spf2.0/mfrom ip4:199.46.196.192/26 ip4:199.46.198.192/26 ip4:199.46.199.192/26 ip4:199.46.200.192/26 ip4:199.46.245.192/26 i
p4:199.46.185.192/29 ip4:199.46.244.192/26 ip4:199.46.172.192/26 -all"
raytheon.com.           14400   IN      SOA     bos-extdns1.ext.ray.com. net-tech.ext.ray.com. 2008014478 10800 3600 2592000 900
raytheon.com.           14400   IN      NS      bos-service1.raytheon.com.
raytheon.com.           14400   IN      NS      dfw-service1.raytheon.com.
raytheon.com.           14400   IN      NS      lax-service1.raytheon.com.

;; AUTHORITY SECTION:
raytheon.com.           14400   IN      NS      lax-service1.raytheon.com.
raytheon.com.           14400   IN      NS      dfw-service1.raytheon.com.
raytheon.com.           14400   IN      NS      bos-service1.raytheon.com.

;; ADDITIONAL SECTION:
bos-service1.raytheon.com. 40598 IN     A       199.46.198.65
dfw-service1.raytheon.com. 40598 IN     A       199.46.199.65
lax-service1.raytheon.com. 40598 IN     A       199.46.200.65

;; Query time: 8 msec
;; SERVER: 128.32.48.21#53(128.32.48.21)
;; WHEN: Tue Oct 14 23:29:27 2014
;; MSG SIZE  rcvd: 847

[root@moog logs]# 
https://unix.stackexchange.com/questions/89131/sendmail-error-dsn-5-0-0-stat-service-unavailable - email about state=Service unavailable