What are the benefits and risks of self-hosting email infrastructure?

Self-hosting email infrastructure involves significant tradeoffs. Understand both sides before committing.

Benefits:

• Full control: Every configuration decision is yours
• No per-message costs: Infrastructure cost instead of usage pricing
• Customization: Build exactly what you need
• Data ownership: Everything stays on your systems
• No platform risk: Can't be deplatformed or affected by ESP changes
• Deep visibility: Complete logs and metrics access

Risks and challenges:

Expertise required: Need staff who understand email protocols, deliverability, security

Ongoing maintenance: Security patches, monitoring, incident response

Reputation management: You handle IP warming, blocklist issues, provider relationships

• Infrastructure costs: Servers, network, redundancy, disaster recovery
• Compliance burden: You ensure regulatory compliance, not a vendor
• No support: Problems are your problems to solve

When self-hosting makes sense:

• Sufficient volume to justify investment
• Engineering team with email expertise
• Requirements ESPs can't meet
• Long-term commitment to maintaining the infrastructure

Owning a ship means maintaining it, staffing it, and navigating it yourself. Freedom comes with responsibility.