Office365 has outlook.com addresses

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

@@ -98,6 +98,7 @@ public class FragmentOAuth extends FragmentBase {
     private TextView tvError;
     private TextView tvGmailDraftsHint;
     private TextView tvOfficeAuthHint;
+    private TextView tvOfficeOutlookHint;
     private Button btnSupport;
 
     private Group grpError;
@@ -133,6 +134,7 @@ public class FragmentOAuth extends FragmentBase {
         tvError = view.findViewById(R.id.tvError);
         tvGmailDraftsHint = view.findViewById(R.id.tvGmailDraftsHint);
         tvOfficeAuthHint = view.findViewById(R.id.tvOfficeAuthHint);
+        tvOfficeOutlookHint = view.findViewById(R.id.tvOfficeOutlookHint);
         btnSupport = view.findViewById(R.id.btnSupport);
 
         grpError = view.findViewById(R.id.grpError);
@@ -225,13 +227,6 @@ public class FragmentOAuth extends FragmentBase {
                     throw new IllegalArgumentException(getString(R.string.title_no_email));
                 if (!Helper.EMAIL_ADDRESS.matcher(email).matches())
                     throw new IllegalArgumentException(getString(R.string.title_email_invalid, email));
-
-                String e = email.toLowerCase();
-                if (e.contains("@outlook") ||
-                        e.contains("@live") ||
-                        e.contains("@hotmail") ||
-                        e.contains("@msn"))
-                    throw new IllegalArgumentException(getString(R.string.title_setup_office_remark));
             }
 
             etName.setEnabled(false);
@@ -640,8 +635,15 @@ public class FragmentOAuth extends FragmentBase {
             tvGmailDraftsHint.setVisibility(View.VISIBLE);
 
         if ("office365".equals(id) &&
-                ex instanceof AuthenticationFailedException)
+                ex instanceof AuthenticationFailedException) {
             tvOfficeAuthHint.setVisibility(View.VISIBLE);
+            String e = etEmail.getText().toString().toLowerCase();
+            if (e.contains("@outlook") ||
+                    e.contains("@live") ||
+                    e.contains("@hotmail") ||
+                    e.contains("@msn"))
+                tvOfficeOutlookHint.setVisibility(View.VISIBLE);
+        }
 
         etName.setEnabled(true);
         etEmail.setEnabled(true);
@@ -660,5 +662,6 @@ public class FragmentOAuth extends FragmentBase {
         grpError.setVisibility(View.GONE);
         tvGmailDraftsHint.setVisibility(View.GONE);
         tvOfficeAuthHint.setVisibility(View.GONE);
+        tvOfficeOutlookHint.setVisibility(View.GONE);
     }
 }

app/src/main/res/layout/fragment_oauth.xml

@@ -139,6 +139,17 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/tvGmailDraftsHint" />
 
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvOfficeOutlookHint"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_setup_office_remark"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tvOfficeAuthHint" />
+
         <Button
             android:id="@+id/btnSupport"
             android:layout_width="wrap_content"
@@ -149,7 +160,7 @@
             android:textColor="?attr/colorInfoForeground"
             android:textStyle="bold"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/tvOfficeAuthHint" />
+            app:layout_constraintTop_toBottomOf="@id/tvOfficeOutlookHint" />
 
         <androidx.constraintlayout.widget.Group
             android:id="@+id/grpError"