17 transactional and lifecycle email templates for SaaS (welcome, verify email, password reset, receipt, failed payment, trial ending, team invite, NPS survey and more). Each comes in MJML + Handlebars and React Email (typed TSX), with a plain-text version, dark mode and a test suite you can rerun. 3 templates are free under MIT; the full kit is a £29 one-off launch price.
SaaS teams keep rewriting the same transactional emails and they break across clients and dark mode. Letterbench is a tested, reusable kit so founders can ship good emails quickly.