Deliverability
5 min read
Cold email DNS authentication: a pre-launch checklist
Launch every Google Workspace sending domain with SPF, DKIM, DMARC, MX, and a fully tested message path.
ColdMail Editorial
2026-09-13
ColdMail Blog
Expert insights, best practices, and actionable strategies to master cold email outreach and maximize your inbox deliverability.
Deliverability
4 min read
Email warmup vs inbox placement: what each signal tells you
Use warmup activity, delivery acceptance, provider health, inbox placement, and replies to scale outbound with confidence.
ColdMail Editorial
2026-09-13
Scaling
5 min read
Cold email infrastructure launch checklist for agencies
Launch client domains, mailbox batches, authentication, sequencer connections, warmup, monitoring, and reply workflows from one repeatable system.
ColdMail Editorial
2026-09-13
Deliverability
15 min read
The Complete Guide to Cold Email Deliverability in 2025
Email deliverability is the foundation of successful cold email campaigns. In 2025, with increasingly sophisticated spam filters and stricter authentication requirements, understanding deliverability has become more critical than ever. This comprehensive guide covers everything from basic DNS setup to advanced reputation management strategies used by high-volume teams sending millions of emails monthly.
Clara Monroe
2025-01-15
Cold Email
12 min read
How to Write Cold Emails That Get 40% Reply Rates
Achieving 40% reply rates in cold email isn't about luck—it's about understanding human psychology, crafting compelling narratives, and delivering genuine value. While the average cold email sees 1-3% reply rates, top performers consistently achieve 20-40% through systematic approaches to personalization, messaging, and follow-up strategies.
Aanya S
2025-01-12
Best Practices
14 min read
Google Workspace vs Microsoft 365: Which is Better for Cold Email?
Choosing the right email provider for cold email campaigns is a critical decision that impacts deliverability, scalability, and overall campaign success. Google Workspace and Microsoft 365 are the two dominant players in the enterprise email space, each offering different strengths for outbound sales teams.
Isla Benette
2025-01-10
Templates
18 min read
Cold Email Templates That Convert: 50+ Proven Examples
Cold email templates are the foundation of successful outbound campaigns, but not all templates are created equal. The difference between a 2% reply rate and a 20% reply rate often comes down to the quality and relevance of your email templates.
Aanya S
2025-01-08
Scaling
16 min read
Scaling Cold Email from 100 to 10,000 Emails Per Day
Scaling cold email operations from 100 to 10,000 emails per day is one of the most challenging transitions for outbound sales teams. While the principles of successful cold email remain the same, the infrastructure, processes, and strategies required change dramatically at scale.
Clara Monroe
2025-01-05
Psychology
13 min read
The Psychology of Cold Email: Why People Respond and How to Leverage It
Understanding why people respond to cold emails is fundamental to creating effective campaigns. While technical factors like deliverability and timing matter, human psychology drives email responses more than any other factor. Successful cold email campaigns tap into fundamental psychological principles that influence human decision-making and behavior.
Isla Benette
2025-01-03
Compliance
17 min read
Cold Email Compliance: Legal Requirements and Best Practices for 2025
Cold email compliance is more critical than ever in 2025, with increasingly strict regulations and growing consumer privacy concerns. Understanding legal requirements and implementing proper compliance practices is essential for protecting your business, maintaining deliverability, and building trust with prospects.
Clara Monroe
2025-01-01
AI Sales
14 min read
Best AI SDR Tools in 2026: Ranked and Compared
The AI SDR category went from a handful of early bets in 2023 to a crowded, well-funded market by 2026. Artisan, 11x, Instantly, Clay, Apollo, and a wave of newer entrants are all competing for the same budget line: the sales development function.
Aanya S
2026-04-02
AI Sales
10 min read
What Is an AI SDR? (And Should You Use One in 2026)
An AI SDR (Artificial Intelligence Sales Development Representative) is software that autonomously performs the outbound prospecting and outreach functions traditionally handled by a human sales development rep.
Clara Monroe
2026-04-08
AI Sales
12 min read
Artisan Ava Review 2026: Is It Worth $2,000/Month?
Artisan Ava is an AI sales development representative (SDR) built by Artisan AI. It's one of the most well-known products in the AI SDR category, having raised significant venture funding and generated substantial press coverage since its launch.
Isla Benette
2026-04-14
AI Sales
11 min read
How to Replace Your SDR with an AI Agent: A Step-by-Step Guide
This guide is about replacing the SDR function — the top-of-funnel prospecting and outreach workflow — not necessarily individual people. The distinction matters.
Aanya S
2026-04-18
AI Sales
13 min read
AI Sales Agent vs Human SDR in 2026: The Real Cost and Performance Comparison
This question gets more concrete every quarter. In 2023 it was theoretical. In 2024, early AI SDR tools started delivering enough results to take seriously. In 2026, multiple products now handle the full outbound loop — ICP research, prospect discovery, personalized email, follow-up, reply handling, meeting booking — at meaningful scale.
Clara Monroe
2026-04-22
Best Practices
10 min read
Best Cold Email Mailbox Providers (Updated for 2026)
A practical comparison of the top mailbox providers for cold outreach, updated for 2026 and focused on Gmail/Google Workspace deliverability, setup speed, admin control, and risk.
ColdMail Editorial
March 2, 2026
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