diff --git a/app/src/main/java/eu/faircode/email/MessageHelper.java b/app/src/main/java/eu/faircode/email/MessageHelper.java
index 5561930640..e33211ae93 100644
--- a/app/src/main/java/eu/faircode/email/MessageHelper.java
+++ b/app/src/main/java/eu/faircode/email/MessageHelper.java
@@ -302,6 +302,7 @@ public class MessageHelper {
             else
                 imessage.setHeader("Date", mdf.format(new Date(message.received)));
         } else {
+            // https://datatracker.ietf.org/doc/html/rfc2822#section-3.6.6
             ByteArrayInputStream bis = new ByteArrayInputStream(message.headers.getBytes());
             Enumeration<Header> headers = new InternetHeaders(bis).getAllHeaders();
             while (headers.hasMoreElements()) {
diff --git a/app/src/main/java/eu/faircode/email/ServiceSend.java b/app/src/main/java/eu/faircode/email/ServiceSend.java
index 372e12a98e..9bba41b21e 100644
--- a/app/src/main/java/eu/faircode/email/ServiceSend.java
+++ b/app/src/main/java/eu/faircode/email/ServiceSend.java
@@ -712,13 +712,6 @@ public class ServiceSend extends ServiceBase implements SharedPreferences.OnShar
             iservice.getTransport().sendMessage(imessage, to);
             end = new Date().getTime();
             EntityLog.log(this, "Sent " + via + " elapse=" + (end - start) + " ms");
-
-            if (BuildConfig.DEBUG) {
-                ByteArrayOutputStream bos = new ByteArrayOutputStream();
-                imessage.writeTo(bos);
-                for (String line : bos.toString().split("\n"))
-                    Log.i("MMM " + line);
-            }
         } catch (MessagingException ex) {
             iservice.dump();
             Log.e(ex);