1 files changed, 6 insertions, 5 deletions
diff --git a/sendmailadvanced.in b/sendmailadvanced.in
index 62ea21e..4afcf05 100755
--- a/sendmailadvanced.in
+++ b/sendmailadvanced.in
@@ -270,9 +270,9 @@ fi
   if ${encrypt}; then
     boundary=""
     while
-      echo "${body}" | \
-        grep -q "${boundary}"; do
-      boundary="$(gen_boundary)"
+      printf '%s\n' "${body}" | \
+        grep -qF "${boundary}"; do
+      boundary=$(gen_boundary)
     done
 
     echo 'MIME-Version: 1.0'
@@ -293,8 +293,9 @@ fi
     echo 'Content-Disposition: inline; filename="encrypted.asc"'
   fi
 
-  echo "${zeile}"
-  echo "${body}"
+  printf '%s\n' \
+    "${zeile}" \
+    "${body}"
 
   if ${encrypt}; then
     echo ''