--- title: "Robert Smith (@superkabe) | Hashnode" description: "GTM Engineer who handles email infrastructure. Read the latest articles by Robert Smith on Hashnode." url: "https://hashnode.com/@superkabe" --- @superkabe # Robert Smith @superkabe · Bangalore, India · Joined March 2026 GTM Engineer who handles email infrastructure ### [Introducing Superkabe: Cold Email Infrastructure Protection](https://superkabe.hashnode.dev/introducing-superkabe-cold-email-infrastructure-protection?utm_source=hashnode&utm_medium=feed) We burned 12 domains in 3 months. So we built the protection layer that sits between Clay and Smartlead to validate, monitor, and heal automatically. 6 min read · [superkabe.hashnode.dev](https://superkabe.hashnode.dev/introducing-superkabe-cold-email-infrastructure-protection?utm_source=hashnode&utm_medium=feed) [Apr 18](https://hashnode.com/posts/introducing-superkabe-cold-email-infrastructure-protection/69e3c7faee84f66e94c3e2c0) ### [Why Do Cold Emails Go to Spam After 2 Weeks?](https://superkabe.hashnode.dev/why-do-cold-emails-go-to-spam-after-2-weeks?utm_source=hashnode&utm_medium=feed) Your warmup went perfectly. Open rates above 60%. Inbox placement across Gmail, Outlook, Yahoo. The warmup tool dashboard was green across the board. Then you launched your first real campaign. Within 5 min read · [superkabe.hashnode.dev](https://superkabe.hashnode.dev/why-do-cold-emails-go-to-spam-after-2-weeks?utm_source=hashnode&utm_medium=feed) [Apr 18](https://hashnode.com/posts/why-do-cold-emails-go-to-spam-after-2-weeks/69e3be98ee84f66e94be37f2) ### [From Domain Purchase to First Reply: Engineering Deliverability-First Outbound](https://superkabe.hashnode.dev/from-domain-purchase-to-first-reply-engineering-deliverability-first-outbound?utm_source=hashnode&utm_medium=feed) I've been a developer my entire career. Sales was someone else's problem. Then our CEO asked me to figure out why our outbound emails weren't working, and I fell down a rabbit hole I didn't know exist 9 min read · [superkabe.hashnode.dev](https://superkabe.hashnode.dev/from-domain-purchase-to-first-reply-engineering-deliverability-first-outbound?utm_source=hashnode&utm_medium=feed) [Mar 24](https://hashnode.com/posts/from-domain-purchase-to-first-reply-engineering-deliverability-first-outbound/69c312c692029d915f8fd4a7)