Bulk email

One-to-many email — newsletters, promos, announcements — sent to a list.

Published January 15, 2026 · By RAPID SMTP

Subject to consent, suppression, and List-Unsubscribe rules. RAPID SMTP is purpose-built for this category.

Related terms

Transactional emailOne-to-one email triggered by user action: receipts, password resets, order confirmations.
DeliverabilityThe probability that your email lands in the inbox rather than spam.

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