Marketing email
One-to-many email sent on the senders schedule.
Marketing email is broadcast or behavior-triggered email used for promotion, lifecycle nurturing, or newsletters. Engagement metrics drive sender reputation more than for transactional, and recipient consent (CAN-SPAM, GDPR) is non-negotiable.
reading this as SaaS product teams
A SaaS product sends on behalf of its customers, so the deciding factors are tenant isolation, whether suppressions can be scoped rather than global, and whether support can answer why one specific account did not receive one specific email. Lifecycle automation and transactional sending usually need to coexist.
Applied to marketing email, that means weighing multi-tenant support, event stream, the suppressions API, and operating track record ahead of the rest, against trial expiry notices, dunning, onboarding sequences, and per-tenant transactional mail.