Cold Email Infrastructure Blog
Guides, tutorials, and comparisons for building your cold email stack.
How to Send Cold Emails: The Complete Guide for 2026
Learn everything about sending cold emails that get replies. From infrastructure setup to copywriting, this guide covers it all.
Cold Email Campaign Setup: Step-by-Step Guide
Set up your first cold email campaign from scratch. Domain setup, warmup, list building, and sending — all in one guide.
Cold Outreach Strategy for 2026: What Works Now
Cold outreach has evolved. Here's what's working in 2026 for B2B sales teams, agencies, and founders.
Cold Email Examples That Actually Convert in 2026
Real cold email templates that get replies. Analyzed by response rate with explanations of why they work.
Cold Email Marketing: The B2B Guide
How to use cold email as a marketing channel. Strategy, tools, compliance, and ROI optimization.
How to Start a Cold Email Agency in 2026
Step-by-step guide to starting a cold email lead gen agency. Tools, pricing, client acquisition, and scaling.
Can You Use Mailchimp for Cold Email? (No — Here's Why)
Mailchimp explicitly prohibits cold email. Here's why, what happens if you try, and the best alternatives.
Best Email Warmup Tools in 2026: Tested & Compared
We tested every major warmup tool. Here are the results — including pricing, effectiveness, and which one to choose.
Instantly vs Smartlead: The Complete Comparison for 2026
The most searched cold email comparison. Features, pricing, deliverability, and our verdict on Instantly vs Smartlead.
How to Set Up Cold Email Infrastructure from Scratch
Domains, mailboxes, DNS records, warmup, sending tools — the complete technical setup guide.
Cold Email Deliverability Guide: Land in the Inbox
Everything affecting your deliverability: authentication, warmup, content, sending patterns, and monitoring.
SPF, DKIM, DMARC Setup Guide for Cold Email
Step-by-step DNS authentication setup. Copy-paste records for Google Workspace, Microsoft 365, and custom SMTP.
HubSpot Cold Email: How to Integrate with Dedicated Sending Tools
HubSpot isn't built for cold email. Here's how to integrate it with Instantly, Lemlist, or Smartlead for the best results.
Google Workspace vs Outlook for Cold Email: Which Is Better?
Comparing the two main email providers for cold outreach. Deliverability, limits, pricing, and recommendations.
Cold Email Compliance: CAN-SPAM and GDPR Guide
Legal guide to cold email. What's allowed under CAN-SPAM and GDPR, and how to stay compliant.