Some people think that the deaconess was not really an ordained role.

Women’s ordination to the diaconate is well-documented. The ordination rite with prayers for her ordination are included in the earliest extant Euchologian [Prayerbook] of the Church, the Barberini Codex, as well as the Bessarionos Codex. Furthermore, in his doctoral dissertation, “ ‘Ordination’ [cheirotonia] or ‘Appointment’ [cheirothesia]of the Deaconess,’” Dr. Evangelos Theodorou, Emeritus Professor of Liturgics at the University of Athens, concluded that the rite of the ordination of the deaconess was a sacramental ordination to the higher orders of the clergy. The Deaconess was ordained by the bishop, during the Liturgy, at the altar, and at the same place in the service that the male deacon was ordained. In addition, she was presented with the stole and chalice, and received communion with the clergy prior to the reception by the lower orders of clergy (e.g. sub-deacon) and the laity. The responsibilities of the Deaconess are also mentioned in early church manuals (e.g. Didascalia Apostolorum, Apostolic Constitutions) and prescriptions for the office are mentioned in the canonical inheritance of the church (e.g. Canon 40 of the Council of Trullo).