Aggiunge IMAP bounce e flag email non valide nel CRM.

Permette di leggere i bounce dalla stessa MailIdentity SMTP, aggiornare le email in anagrafica e saltare gli indirizzi invalidi nei mailing.

Co-authored-by: Cursor <cursoragent@cursor.com>

test/models/mail_identity_test.rb

@@ -51,4 +51,29 @@ class MailIdentityTest < ActiveSupport::TestCase
     assert_not identity.valid?
     assert_includes identity.errors[:smtp_port], "con SSL/TLS va usata la porta 465 (es. smtps.aruba.it)"
   end
+
+  test "infers aruba imap host from smtp" do
+    identity = MailIdentity.new(
+      name: "Aruba",
+      from_name: "Info",
+      from_email: "info@example.com",
+      smtp_host: "smtps.aruba.it",
+      smtp_port: 465,
+      encryption: "tls",
+      smtp_authentication: "plain",
+      smtp_username: "info@example.com",
+      smtp_password: "secret",
+      active: true
+    )
+    assert identity.valid?
+    assert_equal "imaps.aruba.it", identity.effective_imap_host
+    assert_equal 993, identity.effective_imap_port
+    assert identity.imap_ready?
+    settings = identity.imap_settings
+    assert_equal "imaps.aruba.it", settings[:address]
+    assert_equal 993, settings[:port]
+    assert settings[:ssl]
+    assert_equal "info@example.com", settings[:user_name]
+    assert_equal "secret", settings[:password]
+  end
 end