Cold Email
Cold Email Automation That Actually Converts
Cold email automation sends personalized outreach sequences to prospects who haven't heard from you, with deliverability infrastructure (domains, warm-up, SPF/DKIM/DMARC) keeping messages out of spam. BILT pairs the sending engine with AI reply handling, so a positive response gets worked toward a booked call without a human touching the inbox.
Cold email is the cheapest outbound channel per contact — and the easiest to burn. The difference between 50% open rates and the spam folder is infrastructure: dedicated domains, gradual warm-up, authentication, and list hygiene.
BILT treats the infrastructure as table stakes and competes on what happens after the reply: AI that answers questions, handles objections, and books the appointment while you're doing something else.
Frequently asked
Does cold email still work in 2026?
Yes — but only with proper infrastructure. Gmail and Yahoo's bulk-sender rules killed lazy blasting and rewarded senders with authenticated domains, clean lists, and genuine personalization. The channel consolidated; it didn't die.
How many cold emails can I send per day?
Per sending inbox, 30–50/day after a 3–4 week warm-up is the sustainable ceiling. Volume scales horizontally: ten warmed inboxes across three domains sends 300–500/day safely. BILT manages the rotation automatically.
What is SPF, DKIM, and DMARC — and do I need them?
They're DNS records that prove your email isn't forged. Since February 2024 the major inbox providers require all three from bulk senders — without them you're structurally headed to spam regardless of content quality.
What reply rate is good for cold email?
1–3% positive reply rate is solid for cold B2B lists; tightly-targeted niche lists (like property owners matching a buy box) can run higher. The metric that matters more is replies-to-booked-calls, which is where AI follow-up changes the math.
Cold email vs cold calling — which should I run?
Email wins on cost and scale, calling wins on immediacy. The practical answer for small teams is email-first with AI handling replies, reserving live calls for engaged prospects the sequences surface.
Deep dives
Go deeper on cold email
The Deliverability Stack
Domains, warm-up, and authentication that keep you in the inbox.
Cold Email for Real Estate
Sequences for off-market owners and listing agents.
Anatomy of a 6-Touch Sequence
What each email does and when to send it.
AI Reply Handling
From positive reply to booked call without a human.
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