Email Limits - Optional Setting

[bayview-gord]

Current email limits are set to 200 emails per org/user. It would be helpful to set that limit for OSS Installations.

[matiasb]

We are enforcing calls/sms/emails limit in OSS installations even if using own Twilio or email backend setup. I would be nice to make these limits an optional setting for on-prem cases.

[Matvey-Kuk]

Here is a part of code to make a change: https://github.com/grafana/oncall/blob/dev/engine/apps/email/tasks.py#L67 PR's are welcome!

[Matvey-Kuk]

Actually one thing needed is to make it an env var with default to 200:

oncall/engine/apps/user_management/subscription_strategy/free_public_beta_subscription_strategy.py

Line 17 in d8dcb67

EMAILS_LIMIT = 200