attrDef.setNamespace(NAMESPACE_VO_FROM_EMAIL);
attrDef.setDescription("Email address used as \"from\" in mail notifications.");
attrDef.setType(String.class.getName());
attrDef = attrManager.createAttribute(registrarSession, attrDef);
attrDef.setNamespace(NAMESPACE_VO_TO_EMAIL);
attrDef.setDescription("Email addresses (of VO administrators) used as \"to\" in mail notifications.");
attrDef.setType("java.util.ArrayList");
attrDef = attrManager.createAttribute(registrarSession, attrDef);
attrDef.setNamespace(NAMESPACE_GROUP_TO_EMAIL);
attrDef.setDescription("Email addresses (of Group administrators) used as \"to\" in mail notifications.");
attrDef.setType("java.util.ArrayList");
attrDef = attrManager.createAttribute(registrarSession, attrDef);
attrDef.setNamespace(NAMESPACE_GROUP_FROM_EMAIL);
attrDef.setDescription("Email address used as \"from\" in mail notifications.");
attrDef.setType(String.class.getName());
attrDef = attrManager.createAttribute(registrarSession, attrDef);
attrDef.setNamespace(NAMESPACE_VO_LANGUAGE_EMAIL);
attrDef.setDescription("Default language used for application notifications to VO administrators.");
attrDef.setType(String.class.getName());
attrDef = attrManager.createAttribute(registrarSession, attrDef);
attrDef.setNamespace(NAMESPACE_GROUP_LANGUAGE_EMAIL);
attrDef.setDescription("Default language used for application notifications to Group administrators.");
attrDef.setType(String.class.getName());
attrDef = attrManager.createAttribute(registrarSession, attrDef);