dns
How to Add DKIM and Return-Path Records to DigitalOcean DNS
Learn how to add DKIM and Return-Path records to DigitalOcean DNS, verify SPF alignment, prevent bounce issues, and test email authentication.
Aug 17, 202620 min read
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Insights on AI, marketing & growth.
Practical insights and news on AI tools, technology, email marketing, and audience growth — for creators, founders, marketers, and builders.
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email deliverability 322email marketing 256transactional email 188saas 170email authentication 140ai tools 133ai agents 124deliverability 121developer tools 111dmarc 103smtp 103email api 91transactional-email 89dns 70email-api 70sender reputation 67creator economy 60saas growth 60seo 60digital marketing 55email infrastructure 55dkim 54spf 50content marketing 48
email deliverability
Troubleshooting Email Delivery Issues: A Developer’s Guide
Troubleshooting email delivery issues? Diagnose API, SMTP, DNS, authentication, bounces, spam placement, and recipient-side failures systematically.
Aug 17, 202623 min read
inbound email
What Are Inbound Email Error Messages? Causes, Codes, and Fixes
Learn what inbound email error messages mean, where they occur, how SMTP, DNS, and webhook failures differ, and how to diagnose and fix them.
Aug 17, 202624 min read
email deliverability
Open Tracking and Apple Mail: A Developer’s Guide to MPP
Learn how open tracking and Apple Mail Privacy Protection affect metrics, segmentation, automation, deliverability, and email analytics.
Aug 17, 202620 min read
ai agents
AI Agents in the Future of Work: How to Build Real Leverage
AI agents in the future of work will reshape leverage, compensation, and services. Learn to prove value and deploy agents responsibly.
Aug 17, 202619 min read
email tracking
How Does Open Tracking Work? Pixels, Privacy, and Reliable Email Metrics
Learn how open tracking works, from invisible pixels and image requests to privacy proxies, custom domains, testing, and better email metrics.
Aug 17, 202622 min read
ai tools
GLM-5.3 Review: Can Z.ai’s New Coding Agent Deliver Beyond Demos?
Our GLM-5.3 review examines Z.ai’s coding-agent benchmarks, browser and Blender demos, cyber claims, access limits, and how teams should test it.
Aug 17, 202620 min read
transactional-email
How to Send Email on Behalf of Your Customers Safely
Learn how to send email on behalf of customers with custom domains, SPF, DKIM, DMARC, bounce handling, tenant isolation, and testing.
Aug 17, 202622 min read
email deliverability
Sending Email From Domains With UTF-8 or Non-ASCII Characters
Learn how to send email from UTF-8 and non-ASCII domains using IDNA, Punycode, SPF, DKIM, DMARC, SMTPUTF8, and reliable testing.
Aug 17, 202618 min read
pricing strategy
Value-Based Pricing Strategy: How to Win More Deals Without Discounting
Build a value-based pricing strategy that captures willingness to pay, controls risk, avoids commodity pricing, and wins better-fit customers.
Aug 17, 202621 min read
email deliverability
How to Send Email From Subdomains: DNS Setup and Deliverability
Learn how to send email from subdomains with SPF, DKIM, DMARC, return-path, and tracking DNS records, plus practical testing and troubleshooting.
Aug 17, 202623 min read
ai coding
ClinePass Coding Workflow: Plan Smarter, Ship Faster
A practical ClinePass coding workflow: use Kimi K3 to plan and DeepSeek V4 Flash to implement, test, and iterate at lower cost.
Aug 16, 202620 min read
email deliverability
Subject Line and From Address Character Limits: A Developer Guide
Learn subject line and From address character limits, SMTP line rules, Unicode encoding, DNS constraints, and validation practices for reliable email delivery.
Aug 16, 202620 min read
cold email
Cold Email Outreach for Agencies: Why You’re Getting No Replies
Cold email outreach for agencies fails when the ask benefits only you. Learn how to earn replies with sharper research, offers, and deliverability.
Aug 16, 202619 min read
email design
Email Preheader Text: How to Add Preview Copy That Works
Learn how to add email preheader text with robust HTML, plain-text, testing, accessibility, and deliverability practices for transactional messages.
Aug 16, 202621 min read
artificial intelligence
AI Infrastructure Financing: Why the $500B Compute Push Is Not a Simple Bubble Story
AI infrastructure financing is moving toward a $500B capital push. Learn what is real demand, what is leverage, and what builders should watch.
Aug 16, 202620 min read
email compliance
Managing Your Own Unsubscribe Process: A Developer Guide
Learn how to manage your own unsubscribe process with signed links, suppression data, one-click headers, testing, and compliance safeguards.
Aug 16, 202620 min read
developer tools
Developer Tool SaaS Distribution: How README SEO Created an Early Growth Flywheel
Developer tool SaaS distribution is harder than building. Learn how README SEO, GitHub momentum, and better activation turn interest into revenue.
Aug 16, 202620 min read
email deliverability
How to Include a List-Unsubscribe Header (RFC 8058)
Learn how to add a List-Unsubscribe header and RFC 8058 one-click POST endpoint, test it, and avoid delivery and compliance mistakes.
Aug 16, 202618 min read
aws
AWS Audit Checklist for Solo SaaS Founders: Build a 30-Minute Control Loop
AWS audit checklist for solo founders: turn a vague review into evidence for access, backups, bills, drift, and incident response.
Aug 16, 202619 min read
email deliverability
How to Add an Unsubscribe Link to Email (Code + Headers)
Learn how to add an unsubscribe link to email with a compliant footer, List-Unsubscribe headers, one-click POST endpoint, testing steps, and safeguards.
Aug 16, 202623 min read
saas security
SaaS Bot Protection: Why Email Verification Fails—and What to Build Instead
SaaS bot protection needs more than email verification. Build a layered defense with challenges, rate limits, telemetry, and risk-based controls.
Aug 16, 202622 min read
dmarc
Are Your Outlook Emails Going to Spam Because of DMARC?
Outlook emails going to spam can be a DMARC alignment problem. Learn how to inspect headers, fix SPF/DKIM, and publish a safe policy.
Aug 16, 202620 min read
ai development
AI App Development Cost: Why Token Counts Mislead Founders
AI app development cost is more than model tokens. Learn how to estimate engineering, security, QA, infrastructure, and launch work realistically.
Aug 16, 202617 min read
dmarc
Raw DMARC Reports API: How to Retrieve, Export, and Parse Them
Learn how to retrieve raw DMARC reports from an API, request XML when supported, preserve originals, parse RUA data, and troubleshoot access.
Aug 16, 202622 min read
instagram marketing
Instagram DM Commerce: Can Selling Inside Chat Beat the Link Funnel?
Instagram DM commerce keeps product discovery inside chat. Learn the opportunity, API limits, funnel risks, and validation plan for creators.
Aug 16, 202621 min read
dmarc
Getting Started With DMARC Digests: Configure, Read, and Use RUA Reports
Learn how to configure DMARC digests, receive RUA aggregate reports, interpret SPF/DKIM alignment, and move safely toward enforcement.
Aug 16, 202624 min read
email deliverability
Catch-All Email Verification: Don’t Delete Your Best Subscribers
Catch-all email verification is not a delete button. Protect sender reputation while retaining opted-in, engaged subscribers with a practical workflow.
Aug 16, 202619 min read
dmarc
DMARC Untrusted Sources: How to Investigate and Fix Them
Learn what DMARC untrusted sources mean, how to separate spoofing from valid senders, and how to fix SPF, DKIM, and alignment issues.
Aug 16, 202622 min read
ai news
AI Model Releases This Week: Why the Real Story Is Deployment, Not Benchmarks
AI model releases this week span agents, open weights, video, audio and edge AI. See what matters for builders, creators and marketers.
Aug 16, 202620 min read
dmarc
DMARC Trusted Sources: How to Identify Legitimate Email Senders
Learn how to interpret DMARC trusted sources, verify legitimate senders, fix SPF/DKIM alignment, and safely enforce DMARC policies.
Aug 16, 202621 min read
macos
macOS Radial Menu App: Why Arc’s Real Challenge Is Building a Habit
The macOS radial menu app Arc promises faster cursor-first workflows. Its real test is onboarding users into a repeatable daily habit.
Aug 16, 202621 min read
dmarc
DMARC Troubleshooting Tips and Tricks for Reliable Email Delivery
Use these DMARC troubleshooting tips to fix alignment, SPF, DKIM, DNS, reporting, and delivery failures before they affect legitimate email.
Aug 16, 202620 min read
saas
SaaS Metrics for AI Agents: Why Logins No Longer Prove Customer Value
SaaS metrics for AI agents must move beyond logins and seats. Learn how to measure outcomes, prove invisible value, and reduce churn risk.
Aug 16, 202620 min read
dmarc
DMARC FAQ: Setup, Alignment, Policies, and Reports
DMARC FAQ for developers: learn record syntax, SPF and DKIM alignment, p=none to reject policies, aggregate reports, and debugging steps.
Aug 16, 202619 min read
saas
SaaS Idea Validation: Why a Real Problem Can Still Produce the Wrong Product
SaaS idea validation can confirm a real pain yet miss the product buyers want. Learn how to test the job, wedge, and willingness to pay.
Aug 15, 202621 min read
spf
Resolving SPF Too Many DNS Lookups Errors: A Practical Guide
Resolve SPF too many DNS lookups errors with a clear audit, safe record changes, flattening guidance, testing steps, and delivery advice.
Aug 15, 202620 min read
saas
SaaS Feature Validation: Why a Working Automation Feature Still Failed
SaaS feature validation separates a technically sound product from one customers trust and adopt. Learn what 22 CMS connections taught a backlink startup.
Aug 15, 202621 min read
spf
How to Update an SPF Record When One Already Exists
Learn how to update an SPF record when one already exists, merge authorized senders, avoid PermError, and validate DNS safely.
Aug 15, 202621 min read
saas
SaaS Churn in the Vibe Coding Era: Why Explaining Your Product Can Increase Revenue
SaaS churn in the vibe coding era is not solved by hiding features. Learn how clear content and proof can turn DIY doubts into demand.
Aug 15, 202620 min read
dkim
DKIM Record Won’t Verify? A Practical DNS Troubleshooting Guide
Fix a DKIM record that won’t verify: check the selector, DNS host and value, CNAME/TXT conflicts, propagation, signing, and DMARC alignment.
Aug 15, 202620 min read
ai models
Qwen 3.8 Local AI: Why a 27B Model Changes the Build-vs-Buy Equation
Qwen 3.8 local AI brings a 27B open-weight model closer to frontier coding performance. Here’s what builders should test before switching.
Aug 15, 202618 min read
dkim
How Often Should You Generate a New DKIM Key?
Learn how often to generate a new DKIM key, when emergency rotation is required, and how to rotate selectors without breaking email delivery.
Aug 15, 202619 min read
ai ux
Action-First Homepage Design: How AI Products Can Prove Value Before Explaining It
Action-first homepage design can turn product explanation into proof. Learn when to lead with an interactive demo, how to test it, and avoid vanity metrics.
Aug 15, 202619 min read
email authentication
How to Verify a Domain for Transactional Email Sending
Learn how to verify a domain for email sending with DNS, SPF, DKIM, DMARC, validation commands, troubleshooting, and deliverability checks.
Aug 15, 202621 min read
b2b sales
How to Get Your First B2B Customers Without Hiding Behind Marketing
Learn how to get your first B2B customers through conversations, warm referrals, paid pilots, proof, and a repeatable early-sales process.
Aug 15, 202621 min read
dkim
Setting Up DKIM for Your Domain: DNS Records, Testing, and Troubleshooting
Set up DKIM for your domain with correct DNS records, selector guidance, testing commands, key rotation, and fixes for common failures.
Aug 15, 202620 min read
ai coding
Command Code GOAT Plan Review: Is $10 the Best AI Coding Deal?
Command Code GOAT Plan offers $70 in AI coding credits for $10. See its limits, model choices, harness features, and key trade-offs.
Aug 15, 202620 min read