[quote="Chris_Etzel, post:1, topic:215766"]
...if received in a Protestant church ? I know they (we, I'm in RCIA class), accept Baptism in the Trinitarian formula. What about Marriage, Holy Orders, etc ?
Baptism in the Trinitarian formula is valid outside the Catholic Church. The minister of this sacrament is the bishop or delegated priests. BUT, because this sacrament is *necessary *for salvation, the Church makes provision that anyone may baptize out of necessity. The Church determined long ago (2nd century) the baptism of heretics was valid as long as it was Trinitarian and that those seeking to join or return to the Catholic Church did not need to be re-baptized.
Marriage-- providing there are no other impediments such as a prior bond-- is also valid when entered into between two non-Catholics. The couple confers the sacrament upon each other. The priest is the witness in Catholic form, not the minister of the sacrament. The canons regarding the form of marriage apply only to Catholics or those marrying a Catholic.
All other sacraments require valid holy orders. Protestant ecclesial communities do not have valid apostolic succession (i.e., no valid bishops) and therefore do not have valid sacraments of Holy Orders, Eucharist, Confirmation, Reconciliation, or Anointing.
True Churches, such as the Orthodox, have valid apostolic succession and therefore valid sacraments.
There are a smattering of various schismatic churches that do have valid, but illicit Orders due to receiving them from other schismatic groups that have apostolic succession, and therefore in individual cases they may also be conferring valid sacraments.