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PostMTA Hosted
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Operator-grade alternatives

PostMTA Hosted is a managed KumoMTA appliance — not a multi-tenant API signup. Pick the path that matches ownership, compliance, and volume.

When to choose

Decision at a glance

NeedConsiderPostMTA Hosted
Own the relay + VPCPowerMTA, managed MTAKumo appliance on your metal
API-only, no opsSendGrid, SES, PostmarkContact-only — we operate option
Compliance mappingAny ESPPMH-SEC + trust crosswalk
Legacy hosted relay search—See compare guides below

Guides

Side-by-side pages

PowerMTA

Legacy Windows relay vs Kumo appliance

SendGrid

SaaS API vs owned infrastructure

Mailgun

Developer ESP vs on-prem control

Managed MTA

Generic managed relay services

AWS SES

Cloud API vs dedicated appliance

Postmark

Transactional SaaS vs relay ownership

Other

Postal, Resend, Halon, and more

Not sure which path fits?

Tell us your volume and compliance needs — we respond with architecture fit, not a checkout link.

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