IGSendMail

The IGSendMail Blog

Practical, no-fluff email marketing writing for operators who care about open rates, click-through, deliverability, and real revenue. Every post is written by people who actually run programs at scale, not freelancers chasing keywords.

Whether you're sending your first welcome series or migrating a million-subscriber list off legacy ESPs, you'll find guidance grounded in shipped campaigns, A/B test results, and conversations with deliverability engineers at the major mailbox providers. We update older posts when standards change so you never end up implementing advice that became obsolete two years ago.

162 posts · page 1 of 18

All posts

The List-Unsubscribe Header, Explained
Compliance and Privacy

The List-Unsubscribe Header, Explained

The List-Unsubscribe header is what puts the unsubscribe link next to your name in Gmail. It is now required for bulk senders, and it protects you from spam complaints.

Erin MooreSep 25, 20265 min read
Real Estate Email Marketing Ideas That Work
Industry Guides

Real Estate Email Marketing Ideas That Work

Real estate email marketing built around a 6-to-24-month buying cycle: how to segment by transaction stage instead of demographics, twelve email ideas that earn opens, six automated sequences worth building once, fair housing and CAN-SPAM basics, and the metrics that fit a long sales cycle.

Erin MooreSep 25, 20269 min read
ChatGPT for Email Marketing: Prompts That Work
AI Email Marketing

ChatGPT for Email Marketing: Prompts That Work

ChatGPT is a decent email marketing assistant and a poor email marketing writer. Here are the prompts that work, and the newer setup that skips copy-paste entirely.

Erin MooreSep 24, 20265 min read
Unsubscribe Link Requirements by Law
Compliance

Unsubscribe Link Requirements by Law

What the law actually requires from your unsubscribe link under CAN-SPAM, CASL, and GDPR, plus the one-click List-Unsubscribe headers major mailbox providers now require from bulk senders. Includes a comparison table of deadlines, the friction you cannot add, footer requirements, and preference-center best practice.

Erin MooreSep 24, 20269 min read
How to Set Up a Dedicated Sending Domain
Transactional & SMTP

How to Set Up a Dedicated Sending Domain

A dedicated sending subdomain isolates your marketing reputation from your corporate email. This walkthrough covers choosing the subdomain name, the five DNS records you need, step-by-step setup, how to verify DMARC alignment in real headers, warm-up pacing, and the mistakes that cost people a week.

Erin MooreSep 23, 20269 min read
Real Estate Newsletter Ideas That Get Read
Industry Guides

Real Estate Newsletter Ideas That Get Read

Most agent newsletters are a listing dump nobody opens. These are the sections that actually get read, from agents whose lists produce referrals.

Erin MooreSep 23, 20265 min read
Email Consent Checkbox Wording (+ Examples)
Compliance

Email Consent Checkbox Wording (+ Examples)

Email consent wording has to name who is sending, what they will send, how often, and how to stop. This guide gives seven copy-and-adapt checkbox examples by scenario, a table of failing wording with fixes, the design traps around the box itself, how GDPR, CAN-SPAM and CASL differ, and exactly what to record so consent can be proven later.

Erin MooreSep 23, 20269 min read
SMTP Timeout Errors: Causes and Fixes
Transactional & SMTP

SMTP Timeout Errors: Causes and Fixes

A timeout tells you where the SMTP conversation stopped, and that narrows the cause fast. Here are the timeout stages, the four root causes worth checking, a ten-minute diagnostic sequence, and the production patterns that prevent recurrence.

Erin MooreSep 22, 20269 min read

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What you'll find here

Deliverability deep dives

SPF, DKIM, DMARC, BIMI, postmaster tools, sender reputation, warming new IPs, recovering from blacklists, and decoding bounce codes. The technical layer most marketers ignore until it breaks.

Automation playbooks

Welcome series, abandoned cart sequences, browse abandonment, post-purchase, win-back, and lifecycle journeys. Each playbook ships with timing recommendations, copy frameworks, and benchmark conversion rates.

Growth and list building

Lead magnets, popup conversion strategy, double opt-in mechanics, list hygiene, segmentation models, and how to grow a list ethically without buying contacts that will torch your reputation.

Strategy and product updates

Industry analysis, regulatory changes (GDPR, CAN-SPAM, Apple MPP, Yahoo and Gmail bulk sender requirements), and what's shipping inside IGSendMail. The why behind the what.

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