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Author: Julia G

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.

Yahoo Insights: Measure Your Email Delivery Performance with Ease

Written by Julia G

Along with enforcing their sender requirements, inbox providers continue improving the client experience by offering new tools at their disposal. Senders can already get valuable domain metrics in Google Postmaster and verify email traffic coming from their dedicated IP in a Microsoft Smart Network Data Services report. And recently, at the end of October 2025, Yahoo introduced a new portal for email senders – Insights.

Email Deliverability Statistics: Significant Changes for Gmail and Outlook in Q3 2025

Written by Julia G

We continue the analysis of the tests made in GlockApps and we are ready to present the statistics for Quarter 3 2025. How did deliverability change for different senders and Inbox providers? Does a monthly email volume still matter? Let’s examine together.

DMARCbis Takes the Place of DMARC: What’s in It for Senders?

Written by Julia G

DMARCbis is the updated version of the current DMARC email authentication standard, which is expected to be released in 2025. It is to note that the modifications proposed by the Internet Engineering Task Force (IETF) working group aren’t eradicative – they are aimed at improving security and effectiveness of the protocol.

New Email Deliverability Statistics: What Changed in Q2 2025?

Written by Julia G

We continue our series of email deliverability statistics and now we are ready to present the data for Quarter 2 2025 examining email deliverability rates in comparison with Quarter 1 2025 and highlighting the major changes.

How to Improve Email Deliverability: Action Steps Explained

Written by Julia G

With the seed-based email tests conducted by GlockApps, you receive comprehensive reports about the health of your sending infrastructure and your email deliverability across different inbox providers.

Our in-depth analysis allows you to pinpoint the issues and weak sides that may affect the placement of your emails and cause your messages to be delivered to Spam.

Email Template Testing: Steps to Nail Your Emails

Written by Julia G

Email templates are pre-coded files that make the creation of an email message easy, quick, and more efficient because the layout, format, and structure are already included. Thus, an email template can be used repeatedly and serve as a model for different email campaigns. 

DMARC Tags: Explanation and Examples

Written by Julia G

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol, which controls how the messages failing email authentication must be treated and allows domain owners to receive the reports containing valuable information about their email sources and sent messages.

Updated Email Deliverability Statistics: How Did 2025 Begin for Email Senders?

Written by Julia G

At the beginning of 2024, we came up with our first report demonstrating average email delivery rates across various email delivery services, inbox providers, and senders based on their monthly email volume.

Today, we are presenting an updated data examining email deliverability rates in comparison with Quarter 1 2024 and showcasing the changes for the major inbox providers and delivery services.