I filed my complaint electronically through ESTTA, and received a receipt but the notice of institution has not gone out, when will it issue?

If a defendant’s email address is of record and authorized for communication, the notice will go out immediately, but you should check online after a couple of hours because sometimes there is a delay in the electronic processing. If we do not have an authorized email for the defendant, the notice of institution will be processed by a paralegal and may take a few days, depending on the workload.