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THE GTM100x BLOG

Outbound that reaches real people.

Deliverability, cold email, and modern GTM — the technical foundations and the playbooks. No hype, no “fire your team.” Just what actually lands in the inbox and books the meeting.

Cold Email & Deliverability

The 15-Point Email Deliverability Checklist

A practical, run-it-before-you-send checklist covering authentication, domain health, list hygiene, and content so your cold emails actually reach the inbox.

Jul 7, 2025·9 min
Cold Email & Deliverability

Plain Text vs HTML Email for Cold Outreach

The plain text vs HTML debate isn't about aesthetics—it's about whether you look like a colleague or a marketing blast to both the prospect and the spam filter.

Jul 4, 2025·7 min
Cold Email & Deliverability

What's a Good Cold Email Reply Rate? (Real Benchmarks)

Reply rate is the only cold email metric that tracks real conversations, yet most teams chase open rates that no longer mean anything. Here are honest benchmarks.

Jul 1, 2025·8 min
Cold Email & Deliverability

Google Workspace vs Microsoft 365 for Cold Email

A practical comparison of Google Workspace vs Office 365 for cold email — deliverability quirks, sending limits, setup, and which to pick for outbound.

Jun 28, 2025·8 min
Cold Email & Deliverability

The Best Email Warmup Tools, Compared

How email warmup tools work, the features that actually matter, and a side-by-side comparison framework to choose the right one for your outbound stack.

Jun 25, 2025·8 min
Cold Email & Deliverability

How to Check if Your Domain Is Blacklisted (and Get Off)

A step-by-step guide to running an email blacklist check, understanding the major blocklists, and the delisting process to recover your deliverability.

Jun 22, 2025·8 min
Cold Email & Deliverability

Email Bounce Rate: What It Is and How to Lower It

What email bounce rate really measures, the difference between hard and soft bounces, and a clear playbook to lower it before it wrecks your reputation.

Jun 19, 2025·7 min
Cold Email & Deliverability

61 Cold Email Subject Lines That Get Opened

61 cold email subject lines that earn opens without baiting, organized by use case, plus the principles behind why short, specific, human lines win.

Jun 16, 2025·9 min
Cold Email & Deliverability

Why You Need a Separate Domain for Cold Outreach

Why running cold email from a secondary domain protects your primary brand domain, how to set one up correctly, and the mistakes that defeat the purpose.

Jun 13, 2025·6 min
Cold Email & Deliverability

How Many Cold Emails Can You Send Per Day (Safely)?

How many cold emails per day you can safely send without torching your domain — covering per-mailbox limits, warmup ramps, and how to scale with multiple inboxes.

Jun 10, 2025·7 min
Cold Email & Deliverability

Spam Trigger Words: What Actually Matters (and What Doesn't)

The truth about email spam words in 2026: which ones still hurt, which are myths, and why reputation beats any wordlist for staying out of the spam folder.

Jun 7, 2025·7 min
Cold Email & Deliverability

Cold Email Open Rate Benchmarks (and What's Normal in 2026)

What a healthy cold email open rate looks like in 2026, why the metric is murkier than it used to be, and how to read it without fooling yourself.

Jun 4, 2025·8 min