Infrastructure Setup
Sending infrastructure, built to leave no pattern.
Two steps, top to bottom. Generate a batch of dedicated sending domains with every name checked against the registry, then name the US personas that will sit on them and give any of them a profile photo on demand. Structurally varied throughout, so filters and blocklists cannot fingerprint a pattern across the fleet.
Step 1 · Domains
Name style
Two-word compounds read like real small companies, which is what you want on a sending domain. Coined words are off by default: they are fine in volume but look less like a business.
Inputs
The name every generated domain is built around.
Type a word and press space to add it as a tag; these optional generic words get woven into some names, kept neutral so they don't read as marketing.
Structure mix
Which naming shapes to mix, spread evenly so no single pattern dominates the batch.
Batch
10
How many available domains to return. Keep a single registration order to 10 or fewer, then split the rest across other days and accounts.
TLDs
Which domain endings to use, with .com first and cheap abuse-prone TLDs left out.
Candidates
Enter a brand name and press Generate.
Your batch will appear here, spread across structural families and ready to register.
Your batch will appear here, spread across structural families and ready to register.
Step 2 · Mailboxes
Name the seats, then give them faces.
3
Three per domain is the fleet's current ratio and keeps a domain's daily volume conservative.
Addresses are not generated here: the local part is set at the sequencer, so this step produces the people, not the mailbox strings.
70%
Weighting across the batch, not a hard quota, so the split stays natural rather than mechanical.
Generate a batch of domains above, then generate mailboxes for them.
Register them right
Diversified names only help if you buy them like a human would.
10 or fewer per orderSplit a fleet across separate orders on separate days. Bulk same-day registration is itself a blocklist signal.
Spread registrar accountsAround 250 domains per registrar account, different cards per account, and keep nameservers independent of the registrar.
.com firstFall back to .co, .net or .org only when a strong .com is taken. Cheap TLDs carry the abuse reputation of everyone else on them.
Register in the client's nameThe reputation you build belongs to them. Separate every sending domain from their primary domain.
Warm before you sendThree weeks of warmup, then a roughly 90 percent warmup to 10 percent cold ratio for the mailbox's life.
Vet history before you buyThe tool confirms a domain is unregistered, not that it is clean. Check each one's past use and blacklist status before you register it.
No single point of failureVary registrar, registrar account, DNS and nameservers, MX and mailbox provider. Fleets that share one identifiable fingerprint get listed and suspended together.
No lookalike domainsAnchor on the brand, never imitate it. Cousin domains built to shield a primary domain read as deceptive to SURBL and are a brand and legal risk, not a deliverability tactic.
Method reference: LongRun 2026 Email Infrastructure doctrine. Domains are anchored on the brand for legitimacy and varied in structure so no naming pattern repeats across the fleet, since a shared pattern lets one reputation event take down every domain at once.