Hi,
unfortunately jobex is not able to differ the RI of RI-MP2 from the RI of RI-DFT (which is RI-J).
That is a bit unfortunate, but quite easy to circumvent:
export dscf=ridft
jobex -ri -level mp2 [...]
unset dscf
should work.
The unset dscf line is necessary to avoid problems with non-RI-MP2 calculations in the same shell after the job, since a usual Hartree-Fock geometry optimization would also use ridft instead of dscf otherwise.
The same trick can also be used for RI-CC2 or RI-MP2 calculations with the ricc2 program (jobex -level cc2) together with RI-JK.
Regards,
Uwe