🏗️ Stack Builder

Build Your Cold Email Stack In 2 Minutes.

Tell us your domains and number of clients. We'll tell you exactly how many inboxes you need and give you a ready-to-upload CSV of inboxes.

Configure Your Email Infrastructure

Just a few details and we'll have your inbox setup ready to import

Your domains

Comma-separated list

Sender names

For human-looking inboxes

Clients this month

1850

Emails per client

5002,50010k

8 × 2,500 = 20,000 emails/month

⚡ 14 inboxes configured • $100/month

emails/day/inbox

200

max included

Don't let your perfect inbox configuration sit unused.

Join 1000+ agencies using ColdSend - the only cold email platform that lets you start sending immediately (no 2-3 week warmup required).

Cold email infra
without the infra.