Written by Julia G
DMARC has become a core part of domain security and email deliverability. It helps protect brand reputation, prevents phishing and spoofing attacks, and ensures legitimate emails reach the inbox.
Written by Julia G
When a recipient’s mail server rejects an inbound email, where does that message go? Does it just disappear or does it go back to the sender?
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.
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.
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.
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.
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.
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.
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.
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.