Subcontractors
Server
AWS - https://aws.amazon.com/de/compliance/data-protection/
Communication
Mailgun - https://www.mailgun.com/gdpr/
Slack (only with Slack integration) - https://slack.com/intl/de-at/trust/compliance/gdpr
TynTec (only with Messenger integration) - https://www.tyntec.com/compliance-statement