Prefer ISPDB with username

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

@@ -382,11 +382,10 @@ public class EmailProvider implements Parcelable {
     }
 
     @NonNull
-    static List<EmailProvider> fromEmail(Context context, String email, Discover discover, IDiscovery intf) throws IOException {
+    static List<EmailProvider> fromEmail(Context context, String _email, Discover discover, IDiscovery intf) throws IOException {
-        int at = email.indexOf('@');
+        int at = _email.indexOf('@');
-        String domain = (at < 0 ? email : email.substring(at + 1));
+        String domain = (at < 0 ? _email : _email.substring(at + 1));
-        if (at < 0)
+        String email = (at < 0 ? "someone@" + domain : _email);
-            email = "someone@" + domain;
 
         if (TextUtils.isEmpty(domain))
             throw new UnknownHostException(context.getString(R.string.title_setup_no_settings, domain));
@@ -560,16 +559,17 @@ public class EmailProvider implements Parcelable {
         Collections.sort(candidates, new Comparator<EmailProvider>() {
             @Override
             public int compare(EmailProvider p1, EmailProvider p2) {
-                return -Integer.compare(p1.getScore(), p2.getScore());
+                return -Integer.compare(p1.getScore(email), p2.getScore(email));
             }
         });
 
         // Log candidates
         for (EmailProvider candidate : candidates)
             EntityLog.log(context, "Candidate" +
-                    " score=" + candidate.getScore() +
+                    " score=" + candidate.getScore(email) +
                     " imap=" + candidate.imap +
-                    " smtp=" + candidate.smtp);
+                    " smtp=" + candidate.smtp +
+                    " user=" + candidate.username);
 
         // Remove duplicates
         List<EmailProvider> result = new ArrayList<>();
@@ -1059,10 +1059,11 @@ public class EmailProvider implements Parcelable {
         }
     };
 
-    private int getScore() {
+    private int getScore(String email) {
         if (imap == null || smtp == null)
             return -1;
-        return imap.score + smtp.score;
+        return imap.score + smtp.score +
+                (TextUtils.isEmpty(username) || username.equalsIgnoreCase(email) ? 0 : 100);
     }
 
     @Override
@@ -1097,6 +1098,7 @@ public class EmailProvider implements Parcelable {
         //     +2 trusted host
         //     +1 trusted DNS name
         //  20 from autoconfig
+        //     +100 with username
         //  50 from DNS
         // 100 from profile