Added AnonAddy mailer.me domain

app/src/main/java/eu/faircode/email/EntityMessage.java

@@ -460,6 +460,7 @@ public class EntityMessage implements Serializable {
         return "duck.com".equals(domain) ||
                 "simplelogin.co".equals(domain) ||
                 "anonaddy.me".equals(domain) ||
+                "mailer.me".equals(domain) || // AnonAddy
                 domain.endsWith(".mozmail.com");
     }
 

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -2923,6 +2923,9 @@ public class MessageHelper {
         if (sender == null)
             sender = getAddressHeader("X-SimpleLogin-Original-From");
         if (sender == null)
+            // X-AnonAddy-Original-Sender: <email>
+            // X-AnonAddy-Original-Envelope-From: <email>
+            // X-AnonAddy-Original-From-Header: <name>
             sender = getAddressHeader("X-AnonAddy-Original-From-Header");
         if (sender == null)
             sender = getAddressHeader("Sender");