Use localhost for DomainFactory

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

@@ -70,7 +70,7 @@ import javax.mail.internet.InternetAddress;
 // https://developer.android.com/topic/libraries/architecture/room.html
 
 @Database(
-        version = 295,
+        version = 296,
         entities = {
                 EntityIdentity.class,
                 EntityAccount.class,
@@ -3016,6 +3016,12 @@ public abstract class DB extends RoomDatabase {
                         logMigration(startVersion, endVersion);
                         db.execSQL("ALTER TABLE `answer` ADD COLUMN `ai` INTEGER NOT NULL DEFAULT 0");
                     }
+                }).addMigrations(new Migration(295, 296) {
+                    @Override
+                    public void migrate(@NonNull SupportSQLiteDatabase db) {
+                        logMigration(startVersion, endVersion);
+                        db.execSQL("UPDATE `identity` SET `use_ip` = 0 WHERE host = 'sslout.df.eu'");
+                    }
                 }).addMigrations(new Migration(998, 999) {
                     @Override
                     public void migrate(@NonNull SupportSQLiteDatabase db) {

app/src/main/res/xml/providers.xml

@@ -998,7 +998,8 @@
     </provider>
     <provider
         name="DomainFactory"
-        link="https://www.df.eu/de/support/df-faq/e-mail/pop3-imap-postfaecher/mail-programme/">
+        link="https://www.df.eu/de/support/df-faq/e-mail/pop3-imap-postfaecher/mail-programme/"
+        useip="false">
         <imap
             host="sslin.df.eu"
             port="993"