diff --git a/target/bin/debug-getmail b/target/bin/debug-getmail
index 60270215..3d52343c 100644
--- a/target/bin/debug-getmail
+++ b/target/bin/debug-getmail
@@ -5,9 +5,17 @@ source /usr/local/bin/helpers/log.sh
 # shellcheck source=../scripts/startup/setup-stack.sh
 source /usr/local/bin/setup.d/getmail.sh
 
-_setup_getmail
+# Setup getmail, even if not enabled.
+ENABLE_GETMAIL=1 _setup_getmail
 
-GETMAILDIR=/tmp/docker-mailserver/getmail
-for FILE in /etc/getmailrc.d/getmailrc*; do
-  getmail --getmaildir "${GETMAILDIR}" --rcfile "${FILE}" --dump | tail -n +6
+# Directory, where "oldmail" files are stored.
+# Getmail stores its state - its "memory" of what it has seen in your POP/IMAP account - in the oldmail files.
+GETMAIL_DIR=/var/lib/getmail
+
+# If no matching filenames are found, and the shell option nullglob is disabled, the word is left unchanged.
+# If the nullglob option is set, and no matches are found, the word is removed.
+shopt -s nullglob
+
+for RC_FILE in /etc/getmailrc.d/*; do
+  getmail --getmaildir "${GETMAIL_DIR}" --rcfile "${RC_FILE}" --dump | tail -n +6
 done