ALTER TABLE company_settings
  ADD COLUMN IF NOT EXISTS mail_smtp_host       VARCHAR(255) NOT NULL DEFAULT '' AFTER nextcloud_done,
  ADD COLUMN IF NOT EXISTS mail_smtp_port       SMALLINT UNSIGNED NOT NULL DEFAULT 587 AFTER mail_smtp_host,
  ADD COLUMN IF NOT EXISTS mail_smtp_encryption VARCHAR(10)  NOT NULL DEFAULT 'tls' AFTER mail_smtp_port,
  ADD COLUMN IF NOT EXISTS mail_smtp_user       VARCHAR(255) NOT NULL DEFAULT '' AFTER mail_smtp_encryption,
  ADD COLUMN IF NOT EXISTS mail_smtp_pass       VARCHAR(255) NOT NULL DEFAULT '' AFTER mail_smtp_user,
  ADD COLUMN IF NOT EXISTS mail_from_name       VARCHAR(255) NOT NULL DEFAULT '' AFTER mail_smtp_pass,
  ADD COLUMN IF NOT EXISTS mail_from_email      VARCHAR(255) NOT NULL DEFAULT '' AFTER mail_from_name;