Revert "Return-Receipt-To is non standard"

This reverts commit f8eec8fe19.
2021-12-15 19:57:55 +01:00 · 2021-12-15 19:57:55 +01:00 · 716884ef5d
parent f8eec8fe19
commit 716884ef5d
1 changed files with 5 additions and 0 deletions
--- a/app/src/main/java/eu/faircode/email/MessageHelper.java
+++ b/app/src/main/java/eu/faircode/email/MessageHelper.java
@ -402,6 +402,11 @@ public class MessageHelper {
                // 1=Delivery receipt
                // 2=Read+delivery receipt

+                // defacto standard
+                if (receipt_type == 1 || receipt_type == 2) // Delivery receipt
+                    imessage.addHeader("Return-Receipt-To", to);
+
+
                // https://tools.ietf.org/html/rfc3798
                if (receipt_type == 0 || receipt_type == 2) // Read receipt
                    imessage.addHeader("Disposition-Notification-To", to);