change the pgrep line

bin/mailsync

@@ -8,7 +8,7 @@ export DISPLAY=:0.0
 [ -d "$HOME/.local/share/password-store" ] && export PASSWORD_STORE_DIR="$HOME/.local/share/password-store"
 
 # Run only if user logged in (prevent cron errors)
-pgrep -u "$USER" >/dev/null || { echo "$USER not logged in; sync will not run."; exit ;}
+pgrep -u "${USER:=$LOGNAME}" >/dev/null || { echo "$USER not logged in; sync will not run."; exit ;}
 # Run only if not already running in other instance
 pgrep -x mbsync >/dev/null && { echo "mbsync is already running." ; exit ;}