Nothing is known for certain of a pseudepigraphical Epistle to the Alexandrians — purportedly by Paul — that is mentioned in the Muratorian fragment, one of the earliest lists of the canonical texts of the New Testament; the anonymous author of the Muratorian canon considered spurious the letters claiming to have Paul as author, and that claim to be written to the Laodiceans and this one to the Alexandrians, which are specifically said to be: "forged in Paul's name to [further] the heresy of Marcion."
Zahn believed himself to have found a fragment of the Epistle to the Alexandrians in the shape of a lesson – a liturgical Epistle – in the (eighth century) Sacramentary and Lectionary of Bobbio (Paris Bib cat., Lat. 13246). It is headed Epistle of Paul the Apostle to the Colossians, but it is not from that letter or any other. Other scholars consider that it is simply an alternative title to the Epistle to the Hebrews; the "Epistle to the Laodiceans" mentioned with it in the list discovered by Father Ludovico Antonio Muratori is often identified with the Epistle to the Ephesians.