I guess someone inverted the tokens in the template, because the emails look like this:
Subject: "[user@company.com] Unsubscribed from 'Job'"
Body: "This job has been deleted by dbc-12345678-1234."
But it should look like this instead:
Subject: "[dbc-12345678-1234] Unsubscribed from 'Job'"
Body: "This job has been deleted by user@company.com"
This is causing issues for some filtering we're doing based on the email subject.