diff --git a/app/src/main/java/eu/faircode/email/MessageHelper.java b/app/src/main/java/eu/faircode/email/MessageHelper.java
index 85e30e6e32..de6bef34ce 100644
--- a/app/src/main/java/eu/faircode/email/MessageHelper.java
+++ b/app/src/main/java/eu/faircode/email/MessageHelper.java
@@ -2048,6 +2048,7 @@ public class MessageHelper {
                 else if (unsubscribe.toLowerCase(Locale.ROOT).startsWith("mailto:")) {
                     if (mailto == null) {
                         try {
+                            unsubscribe = "mailto:" + unsubscribe.substring("mailto:".length());
                             MailTo.parse(unsubscribe);
                             mailto = unsubscribe;
                         } catch (Throwable ex) {