Is it permissible for a Muslim man to speak with a foreign woman in a befitting manner during the waiting period for approval of their engagement?

Speaking with a non-mahram (definition) woman without necessity is a door to temptation and a means to corruption, for العلامة الخادمي said: "Speaking with a young non-mahram woman is not permissible without necessity, because it is a place of temptation." Therefore, it is not permissible to speak with this girl without a valid necessity, with the reminder that the fiancé is considered a non-mahram to the fiancée until the marriage contract is concluded.