Rather than defining the required "process", you might get more possible solutions just by stating the problem:
I want to send an email when a job abends.
Most job scheduling packages have this function but I'm assuming this is not available at your site.
1) You can add a step to each job with COND=ONLY on a step to send email via SMTP, but COND=ONLY doesn't run for certain abends.
2) Creating a process to monitor the system log for abends will be quite complex.
We'll see what suggestions other may have.
Disclaimer: My comments on this forum are my own and do not represent the opinions or suggestions of any other person or business entity.