Email Deliverability & Outreach

Automate Domain Warmup to Reach Primary Inboxes

By Outreach Operations Group • Updated 2026

Automate Domain Warmup to Reach Primary Inboxes

Official Integration Guide for Warmup Inbox

Sending outbound emails from a brand-new domain often causes messages to land in spam folders. Learn how to warm up a domain automatically to build sender reputation.

Prerequisites and System Requirements

  • Email account with SMTP/IMAP enabled
  • Configured SPF, DKIM, and DMARC DNS records

Step-by-Step Implementation Procedure

1

Connect Mailbox Account

Log into Warmup Inbox, click Add Inbox, and sign in with your Google Workspace, Microsoft 365, or custom SMTP account.

2

Enable Automated Network Exchange

Warmup Inbox automatically connects your mailbox to a network of real inboxes that send, open, reply to, and un-spam your emails to build domain trust.

Best Practice: Keep domain warmup running in the background even after launching sales campaigns to maintain positive engagement metrics.

Ready to implement Warmup Inbox?

Access official portal tools and initialize your workspace in minutes.

Launch Warmup Inbox Portal →
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