Koltrix
Product
Why Koltrix Enforces Send Limits in the API
Koltrix send limits are enforced by the API, not just shown on a page. What each plan allows, what a refusal looks like, and why caps protect your reputation.
5 min read
GuidesEmail not received? A systematic debugging order
When a customer says your email never arrived, work the problem in order: your logs, the SMTP response, authentication, filtering, then the recipient.
4 min read