Practical writing about mail merge, open tracking and deliverability — including the places where the numbers most tools show you are wrong.
A practical guide to Gmail mail merge: CC/BCC, Google Sheets plus Apps Script, add-ons and a sending tool - with the quotas, failure modes and a pre-send checklist.
Apple Mail Privacy Protection, Gmail's image proxy and corporate security scanners all fetch tracking pixels. Here is how to separate machine hits from human opens with data you already have.
When replacing GMass costs you SMTP relay and inbox rotation, and when it saves you money and gets you honest tracking. An honest comparison, including where GMass wins.
SPF, DKIM, DMARC, list hygiene, warm-up and volume shape - the four layers that decide whether your cold email reaches an inbox, in the order they matter.