Reach the primary inbox with a brand-new domain
Leadora warms new mailboxes and domains automatically — building a real sender reputation with human-like conversations, so your cold email lands in the inbox instead of spam.
A new domain lands in spam by default
Gmail, Outlook and Yahoo don't trust a domain they've never seen. Send 40 cold emails on day one and every one gets filtered — or worse, your mailbox gets suspended. Even perfect copy can't rescue a sender with zero reputation.
- New domains have a 60–90 day "probation" window
- Gmail throttles cold senders below 20 messages/day
- One spam complaint on a cold mailbox can drop reputation for weeks
- Missing SPF, DKIM or DMARC = auto-spam on most receivers
Automated warmup, done right
Leadora enrolls every connected mailbox into a private warmup pool. Your mailbox sends and replies to real conversations, marks messages as important, and rescues anything that lands in spam — building reputation the way inbox providers actually measure it.
From cold mailbox to inbox-ready in 4 weeks
- Week 11Authenticate
Connect Gmail / Outlook / SMTP. Leadora audits SPF, DKIM, DMARC and custom tracking domain — flags anything missing before a single email goes out.
- Week 22Ramp up gently
4 → 12 warmup emails per day. Realistic replies, positive engagement signals, spam-folder rescues. No cold sends yet.
- Week 33Blend in real outreach
20 → 30 warmup + up to 20 real cold emails per day. Leadora balances the ratio automatically as reputation grows.
- Week 4+4Sustain
40+ cold emails per day per mailbox, with maintenance warmup always running in the background so reputation never decays.
Everything Leadora sets up for you
Warmup only works when the fundamentals are right. Leadora checks (and where possible fixes) each of these automatically when you connect a mailbox.
- SPF, DKIM and DMARC records verified
- Custom tracking domain with valid CNAME
- MX records and reverse DNS aligned
- Sending IP reputation lookup (Google Postmaster, MXToolbox)
- One-click unsubscribe header on every send
- Per-mailbox daily cap + inter-message delay
- Bounce and complaint auto-suppression
- Real-time inbox placement tests across Gmail / Outlook / Yahoo
Email warmup, answered
What is email warmup?
It's the process of gradually increasing outbound volume from a new mailbox so inbox providers build a positive sender reputation. Warmup peers exchange realistic replies and rescue mail from spam, teaching Gmail and Outlook that you're a real human sender.
How long does email warmup take?
A brand-new domain and mailbox usually needs 2 to 4 weeks. Leadora ramps from 4 warmup emails per day to 40+ automatically, then keeps a maintenance warmup running so reputation never decays even when you pause outreach.
Do I still need SPF, DKIM and DMARC?
Yes — warmup builds reputation, but authentication proves who you are. Leadora audits every domain on connect and flags missing records with copy-paste DNS values, so you never send unauthenticated cold email.
Can I warm up Gmail, Google Workspace and Outlook?
Yes. Leadora warms Gmail, Google Workspace, Outlook, Office 365 and any custom SMTP mailbox. Each provider has its own safe ramp curve and Leadora adapts to it automatically.
Is automated warmup safe?
When done inside provider limits, yes. Leadora keeps sends well under Gmail and Outlook daily caps, randomizes delays, and uses natural human-style conversations so no mailbox is ever flagged as bot activity.
How is this different from just sending slowly?
Sending slowly still means one-way outbound with no engagement — inbox providers see no replies, no marks-as-important, no folder rescues. Warmup produces the positive signals reputation is actually built on.
Start warming today. Send cold email in weeks — not months.
Connect a mailbox in 60 seconds. Leadora handles the ramp, the replies, and the reputation while you focus on writing offers that actually convert.