diff --git a/src/Frontend/src/helpers/mailHelper.ts b/src/Frontend/src/helpers/mailHelper.ts
index 63b7408..682d8db 100644
--- a/src/Frontend/src/helpers/mailHelper.ts
+++ b/src/Frontend/src/helpers/mailHelper.ts
@@ -178,7 +178,7 @@ function splitMailHeader (mailRaw : string) : HeaderDetails[] | undefined {
 
     if (/^\s/.test(line)) {
       // Line is a continuation of the previous header field
-      currentLine += line
+      currentLine += ' ' + line.trim()
     } else {
       // Line is a new header field
       if (currentLine) {