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Ignas Vieversys

Ignas Vieversys focuses on email deliverability, segmentation, and the technical side of email marketing platforms. He evaluates tools by putting them through real sending conditions, not just surface-level features. His analysis helps marketers understand what's actually happening under the hood and where performance can be improved.
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Articles by Ignas Vieversys

The Email Suppression List: Compliance, Architecture, and Operations Guide

  • Email Deliverability
  • May 14, 2026
  • 19 min read

The suppression list is the most underrated system in most email programs. It’s a compliance shield protecting you from CAN-SPAM, GDPR, CCPA, and CASL violations. It’s a deliverability protector — every send to an invalid or unwanted address compounds reputation damage that can take weeks to recover from. And it’s a cost lever — every … Continue reading “The Email Suppression List: Compliance, Architecture, and Operations Guide”

Why Are My Emails Going to Spam? The Diagnostic Playbook

  • Email Deliverability
  • May 14, 2026
  • 21 min read

If you’re reading this, you probably noticed something specific. A campaign that normally pulls a 24% open rate dropped to 11%. A customer messaged support to say they never got the receipt. Your Postmaster dashboard turned yellow overnight. Or you ran a test send to your own Gmail account and watched the message slide quietly … Continue reading “Why Are My Emails Going to Spam? The Diagnostic Playbook”

Spam Traps: The Guide to Detection, Removal, and Recovery

  • Email Deliverability
  • May 14, 2026
  • 19 min read

A marketing team I worked with had spent three years building a 250,000-contact list. Inbox placement sat comfortably around 98%. Then they partnered with a webinar co-sponsor and imported a “shared attendee list” of 12,000 names. Six weeks later, their inbox placement had collapsed to 71%. Their main IP was on the Spamhaus SBL. Revenue … Continue reading “Spam Traps: The Guide to Detection, Removal, and Recovery”

BIMI Implementation: How to Set Up Brand Logos in Inboxes

  • Email Deliverability
  • May 13, 2026
  • 16 min read

Open your inbox right now. Notice how some senders show a polished brand logo next to their name, while others display a generic gray circle with their initial? That difference isn’t random — it’s BIMI. Brands that have implemented BIMI get a measurable advantage. A Red Sift survey found BIMI delivers a 90% increase in … Continue reading “BIMI Implementation: How to Set Up Brand Logos in Inboxes”

Apple Mail Privacy Protection: The 2026 Guide to MPP, iOS 18, and the Metrics That Actually Matter

  • Email Deliverability
  • May 13, 2026
  • 12 min read

Apple Mail commands roughly 49% of the global email client market. If half your “opens” come from Apple Mail users with Mail Privacy Protection enabled, half your engagement data is fiction — inflated by Apple’s servers, not generated by humans reading your emails. Apple Mail Privacy Protection (MPP) launched in September 2021 and quietly rewrote … Continue reading “Apple Mail Privacy Protection: The 2026 Guide to MPP, iOS 18, and the Metrics That Actually Matter”

12 Best Email List Cleaning Services Compared (2026

  • Email Deliverability
  • May 12, 2026
  • 21 min read

If your bounce rate is creeping above 2%, your sender reputation is decaying, or you’ve never run a verification on your list, you’re paying your ESP to mail dead addresses, dragging down your engagement metrics, and risking spam-folder placement on every send. The fix is straightforward: run your list through an email list cleaning service … Continue reading “12 Best Email List Cleaning Services Compared (2026”

Email List Cleaning Guide (2026) Boost Deliverability

  • Email Deliverability
  • May 12, 2026
  • 19 min read

Here’s a number that should make every email marketer pay attention: 22.5% of your email list decays every year, automatically, without you doing anything wrong. People change jobs, abandon old addresses, lose interest in your content, or simply forget they signed up. Left alone, that decay quietly poisons your entire email program. Open rates fall. … Continue reading “Email List Cleaning Guide (2026) Boost Deliverability”

Email Sender Reputation: Guide to Deliverability, and Recovery

  • Email Deliverability
  • May 11, 2026
  • 11 min read

Roughly 1 in 5 marketing emails never reaches the inbox, and an estimated 45% of all email traffic worldwide is classified as spam. If your campaigns are landing in promotions, junk folders, or being silently dropped, the cause usually isn’t your subject line. It’s your email sender reputation. Sender reputation is the single biggest factor … Continue reading “Email Sender Reputation: Guide to Deliverability, and Recovery”

How to Avoid Email Blacklists in 2026: Prevention Guide

  • Email Deliverability
  • May 11, 2026
  • 13 min read

You’ve spent weeks crafting the perfect campaign. Polished copy, segmented audience, tested subject lines. You hit send — and your open rate flatlines. Bounces spike. Replies dry up. There’s a good chance you’ve landed on an email blacklist. With over 300 publicly available spam blacklists in operation and ISPs running their own private filtering systems … Continue reading “How to Avoid Email Blacklists in 2026: Prevention Guide”

Email Preference Center: The Complete Guide to Reducing Unsubscribes

  • Email Marketing
  • May 08, 2026
  • 10 min read

The average person receives nearly 100 emails a day, and roughly half of all unsubscribes happen for one reason: too many emails. But here’s the thing — most of those people don’t actually want to leave. They just want fewer, more relevant messages. That’s exactly what an email preference center solves. Instead of forcing subscribers … Continue reading “Email Preference Center: The Complete Guide to Reducing Unsubscribes”

GDPR Email Marketing: The Complete 2026 Guide to Compliance

  • Email Marketing
  • May 08, 2026
  • 12 min read

Email marketing remains one of the highest-ROI channels in the digital marketing stack — and one of the most heavily regulated. Since the General Data Protection Regulation (GDPR) came into force on 25 May 2018, every organization that emails individuals in the European Union or European Economic Area (EEA) has been subject to a strict, … Continue reading “GDPR Email Marketing: The Complete 2026 Guide to Compliance”

CAN-SPAM Compliance: The Complete 2026 Guide for Email Marketers

  • Email Marketing
  • May 08, 2026
  • 10 min read

CAN-SPAM compliance is the fastest way to protect your email program from FTC fines, ESP suspensions, and a wrecked sender reputation. Most guides still cite outdated penalty figures and skip the operational details that keep marketing teams safe. This guide covers the seven core requirements, 2026 penalty amounts, real enforcement cases, a step-by-step workflow, and … Continue reading “CAN-SPAM Compliance: The Complete 2026 Guide for Email Marketers”

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