Mailbox providers score spam complaints as a percentage, so a bigger list brings no extra allowance. Worked arithmetic on Google’s 0.3% ceiling and 0.1% target.
Small Engaged List vs Large Unengaged List: What Reaches the Inbox Read Post »
A visitor toolbar cannot carry a WCAG conformance claim. A checker that fixes the source can. Which features count, plus the One Accessibility tiers.
WordPress Accessibility Plugins: What They Fix, and What WCAG Still Requires Read Post »
The $69 lifetime tier gives 6 social channels but 8,000 AI credits a month, not Starter 15,000. Full tier comparison and break-even math.
StoryChief AppSumo Review 2026: What the $69 Lifetime Tier Actually Includes Read Post »
Vendors sell lifetime deals to buy users, feedback and upfront cash. Whether the deal lasts depends on what one more user costs them to serve.
The Economics of SaaS Lifetime Deals: Why Software Companies Sell One-Time Licenses Read Post »
Divide the one-time price by the cheapest realistic monthly plan, not the struck-through figure. Break-even tables and three costs that survive it.
SaaS Subscription vs One-Time License: How to Calculate Your Real Break-Even Month Read Post »
Instagram DM tools meter contacts, not messages. Inro allows 500 a month on the $59 tier and 14,000 per account on the $499 tier.
Instagram DM Automation: What These Tools Actually Meter Read Post »
Some community platforms keep a cut of every sale. EzyCommunity charges 4% at $59 and 0% at $199, and the upgrade pays back at $3,500 of sales.
Online Community Platform Pricing: The Commission That Is Not on the Sticker Read Post »
Nine limits on six AppSumo lifetime deals, found in vendor docs and terms rather than the deal page, including when TidyCal 1% fee costs more than Pro.
What AppSumo Listings Leave Out: Nine Limits We Found in the Documentation Read Post »
A catch-all server accepts every address, so verifiers cannot confirm the mailbox. What that means for your bounce rate, and how to send safely.
What Is a Catch-All Email Address and Should You Send Cold Emails to It? Read Post »
SPF authorises the server, DKIM signs the message, DMARC decides what happens on failure. The ten-lookup limit, alignment and p=none explained.
SPF, DKIM and DMARC Explained: How to Stop Business Emails Going to Spam Read Post »
Hard bounces are permanent 5xx failures, soft bounces are temporary 4xx. What each does to sender reputation, and when to remove an address.
Hard Bounce vs Soft Bounce: What Email Bounce Rates Cost Your Domain Read Post »
Send 5,000+ a day to Gmail and you need SPF, DKIM, DMARC, one-click unsubscribe and a spam rate under 0.3%. The full checklist, in plain English.
Google and Yahoo Bulk Email Sender Requirements: The 2026 Checklist Read Post »
