[rt-users] Can't email outside of our domain

[Brett Barnhart]

This isn't directly related to RT, but I am hoping that someone can help.
We've recently noticed that RT's emails are not making it to any email
addresses outside of our domain. Things work perfectly for employees, but as
soon as the requestor is a yahoo address (for example), they never get the
autoreply email.

Here is the relevant entry in our mail log. Can someone point me in the
right direction?

This is being relayed through exchange.

Thanks in advance
Brett

Aug 13 09:14:48 hkrt sendmail[6761]: i7DEEm9w006761: from=nobody, size=1055,
class=-60, nrcpts=1, msgid=<rt-3.0.11-417-1220.9.60815793497112 at hkusa.com>,
relay=nobody at localhost
Aug 13 09:14:48 hkrt sendmail[6763]: i7DEEm7H006763:
from=<nobody at hkrt.hkusa.com>, size=1223, class=-60, nrcpts=1,
msgid=<rt-3.0.11-417-1220.9.60815793497112 at hkusa.com>, proto=ESMTP,
daemon=MTA, relay=hkrt.hkusa.com [127.0.0.1]
Aug 13 09:14:48 hkrt sendmail[6761]: i7DEEm9w006761:
to=brett at thebarnharts.org, ctladdr=nobody (99/99), delay=00:00:00,
xdelay=00:00:00, mailer=relay, pri=139055, relay=[127.0.0.1] [127.0.0.1],
dsn=2.0.0, stat=Sent (i7DEEm7H006763 Message accepted for delivery)
Aug 13 09:14:49 hkrt sendmail[6766]: i7DEEnFx006766: from=nobody, size=1055,
class=-60, nrcpts=1, msgid=<rt-3.0.11-417-1220.9.65786690971086 at hkusa.com>,
relay=nobody at localhost
Aug 13 09:14:49 hkrt sendmail[6768]: i7DEEn7H006768:
from=<nobody at hkrt.hkusa.com>, size=1223, class=-60, nrcpts=1,
msgid=<rt-3.0.11-417-1220.9.65786690971086 at hkusa.com>, proto=ESMTP,
daemon=MTA, relay=hkrt.hkusa.com [127.0.0.1]
Aug 13 09:14:49 hkrt sendmail[6766]: i7DEEnFx006766:
to=brett at thebarnharts.org, ctladdr=nobody (99/99), delay=00:00:00,
xdelay=00:00:00, mailer=relay, pri=139055, relay=[127.0.0.1] [127.0.0.1],
dsn=2.0.0, stat=Sent (i7DEEn7H006768 Message accepted for delivery)
Aug 13 09:15:48 hkrt sendmail[6765]: i7DEEm7H006763:
to=<brett at thebarnharts.org>, ctladdr=<nobody at hkrt.hkusa.com> (99/99),
delay=00:01:00, xdelay=00:01:00, mailer=esmtp, pri=139223,
relay=mail20.webcontrolcenter.com. [216.119.106.18], dsn=4.0.0,
stat=Deferred: Connection timed out with mail20.webcontrolcenter.com.
Aug 13 09:15:49 hkrt sendmail[6770]: i7DEEn7H006768:
to=<brett at thebarnharts.org>, ctladdr=<nobody at hkrt.hkusa.com> (99/99),
delay=00:01:00, xdelay=00:01:00, mailer=esmtp, pri=139223,
relay=mail20.webcontrolcenter.com. [216.119.106.18], dsn=4.0.0,
stat=Deferred: Connection timed out with mail20.webcontrolcenter.com.