Sendmail and AD DNS

O'Connor, Kevin KevinO'Connor at merseyfire.gov.uk
Wed Aug 1 08:27:03 BST 2007


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I've just installed 6.2 into a windows 2003 AD network and sendmail=0D=0Ake=
eps giving a host not found error when sending mail.=0D=0A=0D=0A=20=0D=0A=0D=
=0ADig returns the MX records correctly, ping works fine to any host both=0D=
=0Ainternal and external. Adding an entry in the hosts file and altering=0D=
=0Athe resolution order makes no difference, creating a mailertable entry=0D=
=0Aalso fails to resolve the issue.=0D=0A=0D=0A=20=0D=0A=0D=0AThe only work=
 around I've found is to remove all references to the DNS=0D=0Aservers and =
have the mailertable  determine delivery based on the host=0D=0Afile.=0D=0A=0D=
=0AThis is a horrible kludge and I'm not keen on leaving it like this as it=0D=
=0Awill cause problems in the future when someone else alters/replaces/adds=0D=
=0Aservers.=0D=0A=0D=0A=20=0D=0A=0D=0AAnyone got any ideas=3F=3F=3F=3F=3F=3F=
=3F=3F=3F=3F=0D=0A=0D=0A=20=0D=0A=0D=0ATIA=0D=0A=0D=0A=20=0D=0A=0D=0AKevin =
=20=0D=0A=0D=0A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ =
_ _ _ _ _ _ _ _=0D=0A=0D=0AThis e-mail and any files transmitted with it ar=
e confidential and intended=0D=0Asolely for the use of the individual or en=
tity to whom they are addressed.=0D=0AIf you have received this e-mail in e=
rror please notify the originator of the message.=20=0D=0A=0D=0AAny views e=
xpressed in this message are those of the individual sender,=0D=0Aexcept wh=
ere the sender specifies and with authority, states them to be=0D=0Athe vie=
ws of Merseyside Fire & Rescue Service, (MFRS).=0D=0A=0D=0AIncoming and out=
going emails may be monitored in line with current legislation.=0D=0A=0D=0A=
Steps have been taken to ensure that this email and attachments are=20=0D=0A=
free from any virus.  In keeping with good computing practice the=20=0D=0Ar=
ecipient should ensure they are actually virus free.=0D=0A=0D=0Ahttp://www.=
merseyfire.gov.uk/=0D=0A=0D=0A
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<html xmlns:o=3D"urn:schemas-microsoft-com:office:office" xmlns:w=3D"urn:sc=
hemas-microsoft-com:office:word" xmlns=3D"http://www.w3.org/TR/REC-html40">=0D=
=0A=0D=0A<head>=0D=0A<meta http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">=0D=0A<meta name=3DGenerator content=3D"Microsoft Word =
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color:windowtext;}=0D=0A at page Section1=0D=0A=09{size:612.0pt 792.0pt;=0D=0A=
=09margin:72.0pt 90.0pt 72.0pt 90.0pt;}=0D=0Adiv.Section1=0D=0A=09{page:Sec=
tion1;}=0D=0A-->=0D=0A</style>=0D=0A=0D=0A</head>=0D=0A=0D=0A<body lang=3DE=
N-US link=3Dblue vlink=3Dpurple>=0D=0A=0D=0A<div class=3DSection1>=0D=0A=0D=
=0A<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB styl=
e=3D'font-size:=0D=0A10.0pt;font-family:Arial'>I&#8217;ve just installed 6.=
2 into a windows 2003 AD=0D=0Anetwork and sendmail keeps giving a host not =
found error when sending mail.<o:p></o:p></span></font></p>=0D=0A=0D=0A<p c=
lass=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'fo=
nt-size:=0D=0A10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>=0D=
=0A=0D=0A<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-G=
B style=3D'font-size:=0D=0A10.0pt;font-family:Arial'>Dig returns the MX rec=
ords correctly, ping works fine=0D=0Ato any host both internal and external=
=2E Adding an entry in the hosts file and=0D=0Aaltering the resolution orde=
r makes no difference, creating a mailertable entry=0D=0Aalso fails to reso=
lve the issue.<o:p></o:p></span></font></p>=0D=0A=0D=0A<p class=3DMsoNormal=
><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'font-size:=0D=0A10=
=2E0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>=0D=0A=0D=0A<p=
 class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'=
font-size:=0D=0A10.0pt;font-family:Arial'>The only work around I&#8217;ve f=
ound is to remove=0D=0Aall references to the DNS servers and have the maile=
rtable&nbsp; determine=0D=0Adelivery based on the host file.<o:p></o:p></sp=
an></font></p>=0D=0A=0D=0A<p class=3DMsoNormal><font size=3D2 face=3DArial>=
<span lang=3DEN-GB style=3D'font-size:=0D=0A10.0pt;font-family:Arial'>This =
is a horrible kludge and I&#8217;m not keen on=0D=0Aleaving it like this as=
 it will cause problems in the future when someone else=0D=0Aalters/replace=
s/adds servers.<o:p></o:p></span></font></p>=0D=0A=0D=0A<p class=3DMsoNorma=
l><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'font-size:=0D=0A1=
0.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>=0D=0A=0D=0A<p =
class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'f=
ont-size:=0D=0A10.0pt;font-family:Arial'>Anyone got any ideas=3F=3F=3F=3F=3F=
=3F=3F=3F=3F=3F<o:p></o:p></span></font></p>=0D=0A=0D=0A<p class=3DMsoNorma=
l><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'font-size:=0D=0A1=
0.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>=0D=0A=0D=0A<p =
class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB style=3D'f=
ont-size:=0D=0A10.0pt;font-family:Arial'>TIA<o:p></o:p></span></font></p>=0D=
=0A=0D=0A<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-G=
B style=3D'font-size:=0D=0A10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></spa=
n></font></p>=0D=0A=0D=0A<p class=3DMsoNormal><font size=3D2 face=3DArial><=
span lang=3DEN-GB style=3D'font-size:=0D=0A10.0pt;font-family:Arial'>Kevin =
&nbsp;<o:p></o:p></span></font></p>=0D=0A=0D=0A</div>=0D=0A=0D=0A<br><br><t=
able bgcolor=3Dwhite style=3D"color:black"><tr><td><br>_&nbsp;_&nbsp;_&nbsp=
;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nb=
sp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&=
nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;_&nbsp;=
_&nbsp;_&nbsp;_<br>=0D=0A<br>=0D=0AThis&nbsp;e-mail&nbsp;and&nbsp;any&nbsp;=
files&nbsp;transmitted&nbsp;with&nbsp;it&nbsp;are&nbsp;confidential&nbsp;an=
d&nbsp;intended<br>=0D=0Asolely&nbsp;for&nbsp;the&nbsp;use&nbsp;of&nbsp;the=
&nbsp;individual&nbsp;or&nbsp;entity&nbsp;to&nbsp;whom&nbsp;they&nbsp;are&n=
bsp;addressed.<br>=0D=0AIf&nbsp;you&nbsp;have&nbsp;received&nbsp;this&nbsp;=
e-mail&nbsp;in&nbsp;error&nbsp;please&nbsp;notify&nbsp;the&nbsp;originator&=
nbsp;of&nbsp;the&nbsp;message.&nbsp;<br>=0D=0A<br>=0D=0AAny&nbsp;views&nbsp=
;expressed&nbsp;in&nbsp;this&nbsp;message&nbsp;are&nbsp;those&nbsp;of&nbsp;=
the&nbsp;individual&nbsp;sender,<br>=0D=0Aexcept&nbsp;where&nbsp;the&nbsp;s=
ender&nbsp;specifies&nbsp;and&nbsp;with&nbsp;authority,&nbsp;states&nbsp;th=
em&nbsp;to&nbsp;be<br>=0D=0Athe&nbsp;views&nbsp;of&nbsp;Merseyside&nbsp;Fir=
e&nbsp;&amp;&nbsp;Rescue&nbsp;Service,&nbsp;(MFRS).<br>=0D=0A<br>=0D=0AInco=
ming&nbsp;and&nbsp;outgoing&nbsp;emails&nbsp;may&nbsp;be&nbsp;monitored&nbs=
p;in&nbsp;line&nbsp;with&nbsp;current&nbsp;legislation.<br>=0D=0A<br>=0D=0A=
Steps&nbsp;have&nbsp;been&nbsp;taken&nbsp;to&nbsp;ensure&nbsp;that&nbsp;thi=
s&nbsp;email&nbsp;and&nbsp;attachments&nbsp;are&nbsp;<br>=0D=0Afree&nbsp;fr=
om&nbsp;any&nbsp;virus.&nbsp;&nbsp;In&nbsp;keeping&nbsp;with&nbsp;good&nbsp=
;computing&nbsp;practice&nbsp;the&nbsp;<br>=0D=0Arecipient&nbsp;should&nbsp=
;ensure&nbsp;they&nbsp;are&nbsp;actually&nbsp;virus&nbsp;free.<br>=0D=0A<br=
>=0D=0Ahttp://www.merseyfire.gov.uk/<br>=0D=0A<br>=0D=0A</td></tr></table><=
/body>=0D=0A=0D=0A</html>=0D=0A
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