Re: Postfix + LDAP + Transport Maps

On Mon, 27 Sep 2004 12:39:01 +0200, Magnus B=E4ck <magnus@dsek.lth.se> wrot=
e:
> On Monday, September 27, 2004 at 12:23 CEST,
> James Wilson <james.wilson77@gmail.com> wrote:
>=20
> > I have Postfix and LDAP working like a charm. However we have a
> > customer requirement to route messages based on the mailHost attribute
> > in each user. This works. However when sending mail out of the
> > environment, destined to an external address. Mail loops... I've
> > tried using relayhost, static transport has files as well as the LDAP
> > entry. Can someone point out what I'm sure is a blatent mistake :)
>=20
> Show logs of this, or otherwise describe it in greater detail. Loops
> take place when two hosts don't agree on whose responsibility it is to
> do the final delivery of a message.

I've been playing and now get the following, when sending a message
from a local user to an internet user


Sep 27 21:21:42 decs-smtp3 postfix/smtpd[22341]: connect from
smtp.decs.sa.edu.au[172.18.0.156]
Sep 27 21:21:42 decs-smtp3 postfix/smtpd[22341]: 980EF18C087:
client=3Dsmtp.decs.sa.edu.au[172.18.0.156]
Sep 27 21:21:42 decs-smtp3 postfix/cleanup[22343]: 980EF18C087:
message-id=3D<00af01c4a488$63058470$fd06030a@midnight>
Sep 27 21:21:42 decs-smtp3 postfix/nqmgr[19048]: 980EF18C087:
from=3D<admin.epi@epi.sa.edu.au>, size=3D1806, nrcpt=3D1 (queue active)
Sep 27 21:21:42 decs-smtp3 clamsmtpd: 100125: accepted connection
from: 127.0.0.1
Sep 27 21:21:42 decs-smtp3 postfix/smtpd[22341]: disconnect from
smtp.decs.sa.edu.au[172.18.0.156]
Sep 27 21:21:42 decs-smtp3 postfix/smtpd[22347]: connect from
localhost.localdomain[127.0.0.1]
Sep 27 21:21:42 decs-smtp3 postfix/smtpd[22347]: C3B7A18C08A:
client=3Dlocalhost.localdomain[127.0.0.1]
Sep 27 21:21:42 decs-smtp3 postfix/cleanup[22343]: C3B7A18C08A:
message-id=3D<00af01c4a488$63058470$fd06030a@midnight>
Sep 27 21:21:42 decs-smtp3 postfix/nqmgr[19048]: C3B7A18C08A:
from=3D<admin.epi@epi.sa.edu.au>, size=3D2059, nrcpt=3D1 (queue active)
Sep 27 21:21:42 decs-smtp3 clamsmtpd: 100125:
from=3Dadmin.epi@epi.sa.edu.au, to=3Djames.wilson@csm.com.au, status=3DCLEA=
N
Sep 27 21:21:42 decs-smtp3 postfix/smtp[22345]: 980EF18C087:
to=3D<james.wilson@csm.com.au>, relay=3D127.0.0.1[127.0.0.1], delay=3D0,
status=3Dsent (250 Ok: queued as C3B7A18C08A)
Sep 27 21:21:42 decs-smtp3 postfix/smtpd[22347]: disconnect from
localhost.localdomain[127.0.0.1]
Sep 27 21:21:42 decs-smtp3 postfix/nqmgr[19048]: C3B7A18C08A:
to=3D<james.wilson@csm.com.au>, relay=3Dnone, delay=3D0, status=3Ddeferred
(transport is unavailable)
Sep 27 21:21:56 decs-smtp3 postfix/nqmgr[19048]: warning: connect to
transport ,smtp: No such file or directory
Sep 27 21:22:56 decs-smtp3 postfix/nqmgr[19048]: warning: connect to
transport ,smtp: No such file or directory




>=20
> [...]
>=20
> > Relay host is empty as this stange, and /etc/postfix/transport contains=
:
> >
> > * smtp:xxx.xxx.xxx.xxx <--- where xxx is a valid IP :)
>=20
> This must be:
>=20
> * smtp:[xxx.xxx.xxx.xxx]
>=20
> > I can post more contents of my contents if that would help..
> >
> > Each LDAP user has an attribute such as:
> >
> > mailHost smtp:10.10.10.10
>=20
> This address must also be enclosed in brackets.
>=20
> Hint: You can use result_filter to avoid having to store the "smtp:" in
> LDAP. Read ldap_table(5).
>=20
> result_filter =3D smtp:%s
> or
> result_filter =3D smtp:[%s]
>=20
> --
> Magnus B=E4ck
> magnus@dsek.lth.se
>=20

Thanks, I'll be sure to change it. Is there anything wrong with my
transport_maps filter? I'm getting results that make no sense...


Basically we have two internet facing SMTP (1 and 2) (basic domain
relay checking) servers accepting mail for delivery into the internal
environment. The internal mail server (SMTP3) relays mail for local
ldap users to a mail cluster running courier-imap. It also routes
mail to on site mail servers outside of the data centre. Hence the
mailHost attribute, as only some users at the external site use the
local mail server. The others utilise webmail inside our environment.

Cheers!


dn: cn=3Djames wilson.csm,ou=3Dcsm,o=3Dxxx,dc=3Dsa,dc=3Dedu,dc=3D au
givenName: james
objectClass: account
objectClass: posixAccount
objectClass: top
objectClass: shadowAccount
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
objectClass: inetLocalMailRecipient
mailDefaultAddress: james.wilson@csm.sa.edu.au
mailMessageStore: /home/mail/csm/james.wilson.csm/
updatePassword: yes
uid: james.wilson.csm
mail: james.wilson.csm@csm.sa.edu.au
uidNumber: 10294
cn: james wilson.csm
loginShell: /bin/false
gidNumber: 10294
gecos: james.wilson.csm
homeDirectory: /home/users/csm/james.wilson.csm/
sn: wilson.csm
webDirectory: /home/web/csm/james.wilson.csm/
webDisplay: school
shadowWarning: 7
shadowLastChange: 111
shadowMax: 99999
ftpStatus: disabled
passwordChange: no
n2h2GroupName: csm Admin
middleName:
accountStatus: active
mailLifeLongAddress: 2@staff.sa.edu.au
employeeNumber: 2
shadowExpire: 1
inetAccess: no
mailHost: smtp:mail.decs.sa.edu.au
userPassword:: xxxxxxxx