Summation of diagrams in $N=1$ supersymmetric electrodynamics regularized by higher derivatives

For the massless $N=1$ supersymmetric electrodynamics regularized by higher derivatives, we partially sum the Feynman diagrams that define the divergent part of the two-point Green's function and cannot be found from Schwinger–Dyson equations and Ward identities. The result can be written as a special identity for Green's functions.