Elastic Email

Elastic Email charges you only for the emails you send rather than the number of subscribers you have, which appeals to senders with large lists who send infrequently. It covers marketing campaigns, transactional email, and automation features in one interface, avoiding the need for separate providers.

This pricing structure works well for established businesses with big audiences but lower send volumes. The tradeoff is that high-volume senders will want to watch their costs closely, but for sporadic campaigns to a sizable list, the pay-per-email model can keep expenses minimal.