Prompt
Postmark doesn't fit my multi-tenant platform needs
Latest observation
Oct 4, 2026
OpenAI APIWeb search: off
Postmark is great for single-brand transactional email, but it can feel limiting for a multi-tenant platform. Common pain points are:
- One-size-fits-all sending model — hard to cleanly isolate per-tenant branding, domains, and templates
- Domain / inbox management overhead — each tenant may need its own verified sender setup
- Tenant-specific analytics — reporting and deliverability visibility per customer can be awkward
- Scaling operations — provisioning many tenants can become manual
- Brand separation — keeping tenant A’s reputation isolated from tenant B’s is important, but not always easy
If your platform needs tenant-level email customization and isolation, better options are usually:
- SendGrid — flexible, but can get complex
- Mailgun — good for multi-domain setups and more technical control
- Amazon SES — best for scale/cost, but you build more yourself
- SparkPost / Elastic Email — depending on your needs and region
- Resend — modern API, but still evaluate tenant isolation features carefully
A solid multi-tenant email design often includes:
- Per-tenant sending domains
- Per-tenant templates and branding
- Separate suppression/bounce handling
- Tenant-level analytics
- Automated onboarding for new tenants
- Dedicated IPs or pools for larger tenants
If you want, I can help you with one of these next:
- pick the best provider for your platform
- design a multi-tenant email architecture
- compare Postmark vs SES vs SendGrid vs Mailgun
- draft a migration plan off Postmark