A half-fey is immune to enchantment effects:
Original text from Fiend Folio:
Special Qualities: Half-fey have low-light vision and are immune to enchantment spells and effects.
Revised text from wizards:
Immunity to Enchantments (Ex): At 2nd level, a half-fey becomes immune to all spells and effects from the Enchantment school. This ability replaces the saving throw bonus against these effects included in the half-fey's base racial features.
Under the Psionics-Magic transparency default rule, what psionic powers is the half-fey immune to?
The default rule for the interaction of psionics and magic is simple: Powers interact with spells and spells interact with powers in the same way a spell or normal spell-like ability interacts with another spell or spell-like ability. This is known as psionics-magic transparency.