diff --git a/mailchimp-check.sh b/mailchimp-check.sh
new file mode 100644
index 0000000..ee20a46
--- /dev/null
+++ b/mailchimp-check.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# usage: bash mailchimp.sh leaver@example.org second@leaver.org
+# usage: bash mailchimp.sh 'Voornaam Achternaam'
+
+source credentials.sh
+
+user="bij1:${MAILCHIMP_API_KEY}"
+dc='us16'
+base="https://${dc}.api.mailchimp.com/3.0/"
+
+# get lists
+curl -X GET "${base}lists?fields=lists.id,lists.name" --user $user | jq -r '.lists[]'
+
+# find in all lists
+ids=$(curl -X GET "${base}lists?fields=lists.id" --user $user | jq -r '.lists[].id')
+for query in "$@"; do
+    while IFS= read -r list_id; do
+        delete_url=$(curl -X GET "${base}search-members?list_id=${list_id}&query=${query}&fields=exact_matches.members._links.href" --user $user | jq -r '.exact_matches.members[0]._links[-1].href')
+        if [ $delete_url != 'null' ]; then
+            echo "list $list_id: ✅ found $query"
+        else
+            echo "list $list_id: no match for $query"
+        fi
+    done <<< "$ids"
+done
diff --git a/mailchimp.sh b/mailchimp.sh
index 361128c..3fac0df 100755
--- a/mailchimp.sh
+++ b/mailchimp.sh
@@ -7,7 +7,6 @@ source credentials.sh
 user="bij1:${MAILCHIMP_API_KEY}"
 dc='us16'
 base="https://${dc}.api.mailchimp.com/3.0/"
-list_id='e6beec738b' # leden & geinteresseerden
 
 # get lists
 curl -X GET "${base}lists?fields=lists.id,lists.name" --user $user | jq -r '.lists[]'
diff --git a/patch-email.sh b/patch-email.sh
index efe74d8..da0fe8d 100644
--- a/patch-email.sh
+++ b/patch-email.sh
@@ -8,7 +8,6 @@ dc='us16'
 base="https://${dc}.api.mailchimp.com/3.0/"
 old="$1"
 new="$2"
-list_id='e6beec738b' # leden & geinteresseerden
 
 # get lists
 curl -X GET "${base}lists?fields=lists.id,lists.name" --user $user | jq -r '.lists[]'
diff --git a/resubscribe.sh b/resubscribe.sh
index 19013e8..7d3811c 100644
--- a/resubscribe.sh
+++ b/resubscribe.sh
@@ -7,7 +7,6 @@ user="bij1:${MAILCHIMP_API_KEY}"
 dc='us16'
 base="https://${dc}.api.mailchimp.com/3.0/"
 query="$1"
-list_id='e6beec738b' # leden & geinteresseerden
 
 # get lists
 curl -X GET "${base}lists?fields=lists.id,lists.name" --user $user | jq -r '.lists[]'