Should I use Notify or build my own transactional email infrastructure?

Usually: use Notify unless you have a strong reason not to.

Use Notify if you want:

• Fast setup and low operational overhead
• High deliverability without managing mail servers, reputation, bounces, or retries
• Templates, tracking, and auditability out of the box
• Compliance/security features handled for you
• A small or medium team that would rather ship product than run email infrastructure

Build your own if you need:

• Very high volume and predictable cost at scale
• Deep customization of routing, failover, throttling, or content generation
• Strict data residency / compliance constraints that Notify can’t satisfy
• Full control over deliverability, domains, IP warming, suppression lists, and analytics
• You already have an email/platform team and the operational maturity to maintain it

Hidden costs of building your own

Building transactional email infrastructure is not just “send SMTP”:

• SPF/DKIM/DMARC setup and maintenance
• Bounce/complaint handling
• Retry logic and queueing
• Template management and versioning
• Deliverability monitoring
• IP/domain reputation management
• Abuse prevention and rate limiting
• Provider redundancy/failover
• Support burden when emails don’t arrive

Rule of thumb

• If email is important but not your core product: use Notify
• If email deliverability/scaling is a core competency or major cost center: consider building

Practical recommendation

Start with Notify, and only build later if you hit one of these:

• cost becomes material
• compliance/data control becomes an issue
• you need capabilities the service can’t provide
• you have enough traffic and engineering capacity to justify ownership

If you want, I can help you decide with a quick checklist based on your:

• monthly email volume
• compliance requirements
• team size
• need for customization
• budget constraints