DeliverabilityHow to End a Professional Email (Without Hurting
The closing is the last impression. Get it right—from tone to signature—and your email lands. Get it wrong, and it never arrives.
Emmanuel Kwarteng·Jul 28, 2026
The VEC Blog
Email that reaches the inbox
Practical guides on verification, deliverability, and email authentication — from the team building the tools.
Deliverability
DeliverabilityEncrypted email and sender reputation: why you need both
Most senders think encryption solves their email security problem. It doesn't. Here's what encryption actually protects, what it misses, and why verified lists matter just as much.
Mara Chen·Jul 19, 2026
DeliverabilityURL Blacklist: How It Kills Email Deliverability
Your domain is flagged on a blacklist. Chrome blocks it. But the real damage happens in your inbox — every email from that domain starts bouncing. Here's how to fix it and why email verification preve
Mara Chen·Jul 17, 2026
DeliverabilityEmail Threading and Deliverability: Why Threads Matter
Most people think email threads are just messages with 'RE:' in the subject line. The real threading happens in headers — and when those headers break, your sender reputation takes a hit. Here's how t
Mara Chen·Jul 16, 2026
DeliverabilityClean Email: Inbox Management vs. List Cleaning
Search 'clean email' and you get inbox apps or list verification — completely different problems. This post disambiguates both and shows you the sender-side process that actually protects your domain.
Mara Chen·Jul 11, 2026
DeliverabilityHow to Stop Spam Emails: Sender and Receiver Fixes
Spam is a two-sided problem. Learn how to block incoming spam, protect your domain from becoming a spam source, and why a dirty list damages your sender reputation faster than you think.
Mara Chen·Jul 11, 2026
DeliverabilityCold email meaning: definition and deliverability reality
Cold email is an unsolicited, personalized message sent to someone you've never contacted before. But definition alone won't get you to the inbox — list quality is the infrastructure layer most sender
Emmanuel Kwarteng·Jul 10, 2026
DeliverabilityCold Email Follow-Up: Why List Quality Matters More Than Copy
55% of cold email replies come from follow-ups, not openers. But every invalid address in your list gets hit multiple times across the sequence, compounding bounce damage and tanking sender reputation
Priya Iyer·Jul 6, 2026
DeliverabilityMX Record Lookup: Read Your Mail Routing in 3 Steps
Your MX record decides whether inbound email reaches you or vanishes. This guide shows you how to read one, spot routing problems, and fix the silent sender reputation damage most guides miss.
Devon Park·Jul 6, 2026
DeliverabilityHow to Email Large Videos Without Damaging Sender Reputation
Gmail caps attachments at 25 MB. A single minute of 4K video can hit 400 MB. But the real problem isn't the workaround — it's that a bounce from an oversized file counts against your sender reputation
Mara Chen·Jun 28, 2026
DeliverabilityWhy Your Emails Go to Spam (and How to Fix It)
Spam filters score your messages across a dozen signals at once. This post walks you through the diagnostic sequence — authentication, list quality, content — with the specific thresholds Gmail and Ya
Mara Chen·Jun 18, 2026
DeliverabilityEmail Deliverability: Why List Quality Matters More Than Authentication
You can hit a 98% delivery rate and still have a third of your list never see a single message. The gap between server acceptance and inbox placement is where most sending programs bleed revenue — and
Devon Park·Jun 18, 2026
DeliverabilityMX Records Explained: How They Affect Email Deliverability
Every email you send triggers an MX record lookup. Understand what MX records do, why priority matters, and how a broken record cascades into hard bounces and damaged sender reputation.
Devon Park·Jun 18, 2026
DeliverabilityHow to reduce email bounce rate below 2%
The senders with the lowest bounce rates aren't cleaning harder after the fact — they're verifying before every send. Here's how to build a workflow that keeps bounces below 2% on every campaign.
Mara Chen·Jun 14, 2026
DeliverabilityHow Email Authentication Actually Works Together
Authentication proves who sent a message—but says nothing about whether your list is real. Here's how SPF, DKIM, and DMARC actually work together, and why list verification is the step most guides ski
Devon Park·Jun 14, 2026