Search messages on sent date

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

@@ -117,6 +117,7 @@ import javax.mail.search.MessageIDTerm;
 import javax.mail.search.OrTerm;
 import javax.mail.search.ReceivedDateTerm;
 import javax.mail.search.SearchTerm;
+import javax.mail.search.SentDateTerm;
 
 import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
 import static androidx.core.app.NotificationCompat.DEFAULT_LIGHTS;
@@ -1720,8 +1721,10 @@ class Core {
             // Reduce list of local uids
             Flags flags = ifolder.getPermanentFlags();
             SearchTerm searchTerm = new ReceivedDateTerm(ComparisonTerm.GE, new Date(sync_time));
-            if (sync_nodate)
+            if (sync_nodate) {
+                searchTerm = new OrTerm(searchTerm, new SentDateTerm(ComparisonTerm.GE, new Date(sync_time)));
                 searchTerm = new OrTerm(searchTerm, new ReceivedDateTerm(ComparisonTerm.LT, new Date(365 * 24 * 3600 * 1000L)));
+            }
             if (sync_unseen && flags.contains(Flags.Flag.SEEN))
                 searchTerm = new OrTerm(searchTerm, new FlagTerm(new Flags(Flags.Flag.SEEN), false));
             if (sync_flagged && flags.contains(Flags.Flag.FLAGGED))