Why an email deliverability SaaS silently throttled my sends without notice and the multi-ESP failover strategy I built to preserve deliverability
If you’ve ever sent marketing or transactional emails at scale, you’ve likely encountered the mysterious world of email deliverability. It’s a realm where your meticulously crafted messages can suddenly vanish into spam folders or seemingly evaporate altogether. This happened to me recently when my preferred email deliverability SaaS silently throttled my outgoing messages—without any notification […]



