version 1

tools/generate_dkim.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+#
+# generate_dkim.sh
+# Generate a new DKIM selector for a domain for Docker-Mailserver.
+#
+# Usage:
+#   ./generate_dkim.sh <domain>
+#
+# Example:
+#   ./generate_dkim.sh knusperkerne.de
+#
+
+DOMAIN="$1"
+CONTAINER="mailserver"      # Name of your DMS container
+SELECTOR="mail"             # Default DKIM selector
+DKIM_PATH="/tmp/docker-mailserver/opendkim/keys/$DOMAIN"
+
+if [ -z "$DOMAIN" ]; then
+    echo "Usage: $0 <domain>"
+    exit 1
+fi
+
+echo "Generating DKIM key for domain: $DOMAIN"
+echo "Selector: $SELECTOR"
+echo
+
+# Generate DKIM key inside the DMS container
+docker exec "$CONTAINER" \
+  setup config dkim \
+  --domain "$DOMAIN" \
+  --selector "$SELECTOR" \
+  --bits 2048
+
+if [ $? -ne 0 ]; then
+    echo "ERROR: DKIM generation failed."
+    exit 1
+fi
+
+echo "DKIM key generated successfully."
+echo
+
+# Show public DKIM key for DNS
+echo "Your DKIM TXT record (add to DNS):"
+echo "----------------------------------"
+docker exec "$CONTAINER" \
+  cat "$DKIM_PATH/$SELECTOR.txt"
+
+echo "----------------------------------"
+echo
+echo "DKIM generation complete."