Pope Stephen II had already settled this with Cyprian, but apparently some Orthodox do not recognize his ruling.
The Orthodox position is well expressed in the Canons of Saint Basil
which were incorporated into one of the Ecumenical Councils.
[Question, whey didn't the Church of Rome accept the teaching of
an Ecumenical Council? Why did it keep on with Saint Stephen's view on baptism?]
Here is a patristic viewpoint -from Saint Basil the Great. Notice the typical
balance of the Church Fathers - while the principle of no Sacraments and no
Apostolic Succession outside the Church is clearly enunciated, Saint Basil also
states very clearly that for the sake of the good of the Church "economy" may be
used if it is thought necessary in the case of Baptism.
Epistle to Amphilochius (of which the "First Canon" of Saint Basil is a shorter
---- "It seemed best to the ancients-I refer to Cyprian and our own
Firmilian-to subject all of these (Cathari, and Encratites, and Hydroparastatae)
to one vote of condemnation, because the beginning of this separation arose
through schism, and those who had broken away from the Church no longer had in
them the grace of the Holy Spirit, for the imparting of it failed because of the
severance of continuity.
"For those who separated first had ordination from the Fathers, and
through the imposition of their hands possessed the spiritual gift; but those
who had been cut off, becoming laymen, possessed the power neither of baptizing
nor of ordaining, being able no longer to impart to others the grace of the Holy
Spirit from which they themselves had fallen away.
Therefore they commanded
those who had been baptized by them, as baptized by laymen, to come to the
Church and be purified by the true baptism of the Church.
"But since on the whole it has seemed best to some of those in Asia
that, by economy for the sake of the many, their baptism be accepted, let it be
Note the word "economy" used here by Saint Basil with reference to situations
when baptism is not insisted upon. Saint Athanasius also uses the word economy
with reference to the reception of heretics. Some modern theologians are
pushing the line that the concept of "economy" is an innovation fostered by
Saint Nicodemos of the Holy Mountain but here we see Saint Basil employing the
concept back in the 4th century.