Email processing
- Rate limiting
- Delivery
- How to deliver using LMTP
- How to query a REST API effectively
- How to implement recipient filtering
- HAProxy for shared IP outbound
- Enable the DSN extensions
- Implement proxy - semi or fully transparent
- Create Data Loss Prevention policies
- Implement Sender Rewriting Scheme
- Restrict SASL users to certain sender domains
- In-line delivery
- Check if the sender domain exists
- Archiving