deploy v21.04.4 for #enpvqp

#enpvqp 🇵🇭📮 - meeting abt what email limits to remove ✅ - remove unnecessary emails and change tests that tested for their presence ✅ - deploy new code changes ✅ - backup ✅

For #enpvqp 1. turn back on all the servers again ✅ 2. update servers ✅ 3. deploy new version of enpvqp ✅