Actually, I was considering the Bull Unigenitus of Clement XI, which definitively condemned the error “Outside of the Church, no grace is granted.” With regard to that dogma (EENS), I hold it as the Church does. Do you not agree that a person can belong salvifically to the Church through faith and charity (ie belonging “in voto”), while still being outside the visible society of the Church?
Just as someone who receives baptism by the Church does, but does so in bad faith or without charity (ie irrepentant of a deliberate sin against charity) does not receive the grace, so does someone baptized in another community not receive the grace in those situations. But, on the other hand, where good faith and charity are present, so is baptism received frutifully (and so are the other sacraments).
St. Augustine runs the gambit of possible permutations in his work against the Donatists.
With regard to those who receive it “in heresy or schism without deceit, that is to say, with full sincerity of heart” he says the following:
I should have no hesitation in saying that all men possess baptism who have received it in any place, from any sort of men, provided that it were consecrated in the words of the gospel, and received without deceit on their part with some degree of faith; although it would be of no profit to them for the salvation of their souls if they were without charity, by which they might be grafted into the Catholic Church. For “though I have faith,” says the apostle, “so that I could remove mountains, but have not charity, I am nothing.”
http://www.newadvent.org/fathers/14087.htm
Again, as the Church teaches, even when received in an objective state of schism or heresy, if received with faith and charity it is fruitful toward salvation because it does connect one with the Church. This is why, for example, St. Augustine did not treat such individuals as heretics:
But though the doctrine which men hold be false and perverse, if they do not maintain it with passionate obstinacy, especially when they have not devised it by the rashness of their own presumption, but have accepted it from parents who had been misguided and had fallen into error, and if they are with anxiety seeking the truth, and are prepared to be set right when they have found it, such men are not to be counted heretics.
http://www.newadvent.org/fathers/1102043.htm
If you need proof that the Church teaches that charity can exist in those who are not formal members of the Church, let me know.