Small change

app/src/dummy/java/eu/faircode/email/SSLHelper.java

@@ -21,7 +21,7 @@ public class SSLHelper {
                                             boolean secure, boolean cert_strict,
                                             String trustedFingerprint,
                                             ITrust intf) {
-        return rtm;
+        return null;
     }
 
     static boolean customTrustManager() {

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

@@ -1099,7 +1099,7 @@ public class EmailService implements AutoCloseable {
                     } catch (Throwable ex) {
                         Log.e(ex);
                     }
-                sslContext.init(km, new TrustManager[]{tm}, null);
+                sslContext.init(km, new TrustManager[]{tm == null ? rtm : tm}, null);
             }
 
             factory = sslContext.getSocketFactory();