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Email Deliverability

AI Summaries in Email: Strategies for Gmail and Apple Mail

Written by Tanya Tarasenko

Over the past year, I’ve watched inbox experiences change more dramatically than at any point in the last decade. What used to be a competition between subject lines and preheaders has evolved into something more complex: AI-generated summaries that shape what subscribers see before (and even after) opening an email.

How to Send Mass Email in Outlook: A Practical Step-by-Step Guide

Written by Tanya Tarasenko

Email remains one of the most effective communication channels for announcements, newsletters, internal updates, and client outreach. Yet many people still struggle with how to send mass email in Outlook without creating spammy experiences, exposing recipient addresses, or damaging deliverability.

Does Gmail Unsubscribe Work? Implications for Marketers & Deliverability

Written by Tanya Tarasenko

What is Gmail’s automatic unsubscribe? Discover how to unsubscribe from emails Gmail shows, how the Gmail unsubscribe button works, and what it means for senders.

MX Backup Explained: Pros, Cons, and Best Practices

Written by Tanya Tarasenko

Email is one of the most business-critical communication channels. When incoming mail fails, the consequences can include lost leads, missed support requests, and damaged credibility. A backup MX strategy helps protect against these risks by ensuring emails are still accepted even when your primary mail server becomes unavailable.

Why Add an Unsubscribe Link to Cold Emails

Written by Julia G

Cold emails are electronic messages sent to a user with whom the sender doesn’t have prior relationship to initiate the communication. Unlike spam emails which are irrelevant and bulk sent, cold emails are targeted, relevant, and personalized.

Spam Sign-ups Explained: Protect Your Email List and Deliverability

Written by Tanya Tarasenko

Email marketing success starts with one thing: a healthy, high-quality email list. But what happens when that list becomes contaminated with fake subscribers, bots, or malicious sign-ups?

That’s where spam sign-ups come in, and they’re one of the most dangerous (and underestimated) threats to your deliverability, sender reputation, and campaign performance.

Email Throttling Explained: Why It Happens and How to Prevent It

Written by Tanya Tarasenko

Email deliverability challenges are not always caused by spam filters or technical errors. In many cases, messages fail to arrive on time simply because they are being slowed down by the receiving server. This process is known as email throttling, and it is one of the most common reasons email campaigns experience unexpected delivery delays.

How to Test Transactional Email Deliverability

Written by Julia G

A transactional email is an automated email message triggered by a specific user behaviour on a website or in an application. Examples of transactional emails include account registration confirmations, password resets, subscription confirmations, welcome emails, billing information updates, etc. 

Email Deliverability Statistics: See How Inbox Rates Increased for High-Volume Senders in Q4 2025

Written by Julia G

Did companies see a continuous improvement of the Inbox rate for Microsoft in Q4 2025? Did Google continue to filter out more emails to Spam? Did high volume senders still deliver more emails in the Inbox rather than senders with moderate volume? Examine our report to find it out.

Top Metrics for Evaluating Cybersecurity Health

Written by Tanya Tarasenko

Organizations face increasingly complex cyber threats. As cyberattacks grow in volume and sophistication, cybersecurity teams must go beyond basic defenses and measure their performance in meaningful ways. This is where cybersecurity metrics play a crucial role, they provide teams with measurable insights that guide decision-making, resource allocation, and risk reduction.