Hello,
You will find bellow parts of my script that create a virtual alias map from on
premise AD. You’ll have to work on transforming the output yourself
(/usr/local/bin/get_exchg_aliases.awk in my script).
And you’ll have to tune AD_FILTRE to suit your needs.
EXCHG_OUTPUT="${TRAVAIL}/exchange.ldap"
EXCHG_ALIASES="${TRAVAIL}/exchange.virtual_alias"
AD_BINDNAME="************"
AD_BINDPW="************"
AD_BASE="OU=************,DC=************,DC=************,DC=***"
AD_FILTRE="(|(samaccountType=268435457)(samaccountType=805306368))"
AD_SEARCH="proxyaddresses"
AD_HOST="ldaps://************.************.***"
../..
/usr/local/bin/ldapsearch -v -xLLL -D ${AD_BINDNAME} -w ${AD_BINDPW} -b
${AD_BASE} -H ${AD_HOST} ${AD_FILTRE} ${AD_SEARCH} > ${EXCHG_OUTPUT}
OUT=$?
if [ $OUT != 0 ]; then
echo >&2 "Error: Get Aliases from AD failed (${OUT}) - (${SCRIPT_NAME})"
exit $OTHER_ERR
fi
mv ${EXCHG_ALIASES} ${EXCHG_ALIASES}.old
/usr/local/bin/get_exchg_aliases.awk ${EXCHG_OUTPUT} | sort > ${EXCHG_ALIASES}
But really if you can use a direct bind and query your Azure AD like Wietse and
Victor recommend, it’s probably best.
patpro
October 26, 2023 11:58 PM, "Joey J via Postfix-users"
<postfix-users@postfix.org
(mailto:postfix-users@postfix.org?to=%22Joey%20J%20via%20Postfix-users%22%20<postfix-users@postfix.org>)>
wrote:
Hello All,
I'm trying to see if someone has a good app to connect to an exchange or O365
server either via LDAP or AD to grab all of the legitimate email accounts,
forwarding accounts and Groups in order to build a transport_recipients file
this way reject all invalid email prior to forwarding it to any destination.
Im thinking there would be something open source out there, just not able to
find it.
-- Thanks!
Joey
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