Your Email Sending Setup, Sorted
Build bulletproof cold email infrastructure with pre-configured SPF, DKIM and DMARC authentication, auto-warmup, and scalable multi-inbox sending.
Trusted by teams that cannot afford to miss the inbox
Up and running in minutes
No technical setup required. Connect your accounts and everything else is automated.
Connect Your Email Accounts
Securely connect Gmail, Google Workspace, Outlook, or any SMTP account in under 2 minutes.
Auto-Configure Authentication
SPF, DKIM, DMARC, and custom tracking domains are pre-configured automatically.
Warm Up and Scale
Auto-warmup builds sender reputation from day one. Launch your sequences after warmup completes.
Everything you need for professional email infrastructure
Built for cold email senders who cannot afford deliverability failures.
Auto-Configured Authentication
SPF, DKIM, DMARC records configured automatically — zero DNS headaches, zero technical setup.
Automatic Email Warmup
Gradual sending increases build sender reputation safely and consistently from day one.
Sender Rotation
Automatically rotate across multiple accounts to maintain natural, human-like sending patterns.
Bulk Account Management
Manage multiple mailboxes simultaneously. Apply changes across all accounts in a single batch.
Unified Inbox
Consolidate replies from all connected accounts into a single, organized inbox view.
Real Inbox Network
Warm up using only real inboxes — no fake accounts. Safe, effective, and trusted by ISPs.
Performance Analytics
Real-time insights into inbox placement rates, reputation scores, and sending performance.
Get Your Email Infrastructure Ready in Minutes
Stop losing revenue to spam folders. Start your free trial today — no credit card required.
Frequently Asked Questions
Email infrastructure is the complete setup for reliable email sending: domains, mailboxes, SPF/DKIM/DMARC authentication, warmup, and reputation management. Good infrastructure is the foundation of high inbox placement.
Yes. Using secondary outreach domains protects your primary domain reputation. If an outreach domain gets flagged, your main business email stays safe and unaffected.
These are email authentication protocols: SPF authorizes which servers can send for your domain, DKIM cryptographically signs emails, and DMARC enforces policies. Together they prevent spoofing and improve deliverability.
A good rule: one warmed inbox safely sends 30-50 emails per day. Use our ROI calculator to find exactly how many you need for your campaign goals.
Typically 2-4 weeks. InboxWarm's AI ramps gradually from a few emails on day 1 to full volume by week 4, safely building reputation.