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.
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.
Email deliverability, defined as the ability of an email to successfully reach the recipient’s inbox, rather than being flagged as spam or failing to deliver, remains a critical aspect of email marketing. Whether a company is sending transactional emails, marketing, or cold outreach campaigns, it is important to get the emails delivered to the recipients’ Inboxes. A sure way to find out where the message lands is through an email deliverability test.
At GlockApps, we continue monitoring email deliverability and collect data based on the email tests created by our customers. We’ve already shared email deliverability statistics for quarter 1 and quarter 2 and now we are here with the new report about email deliverability for quarter 3 of 2024. As always, the data is calculated based on email tests made by the GlockApps users.
A lot of different factors determine whether or not an email will reach the targeted recipient and where it will be put: Inbox or Junk folder. These factors include the message copy, sender’s domain reputation, sender’s IP score, prior user interaction, and sending infrastructure.
Additionally, each ISP uses a set of its rules to identify email spam signals, which make it place the message to the Spam folder. Needles to say, the recipients may configure custom filtering settings in their email clients to keep unwanted messages out of their inboxes.
In an attempt to secure their users from unwanted email communications, Internet service providers (ISPs) update their email filtering rules and introduce new standards for email senders. From one side, it makes the recipients’ life easier; from the other side, it requires a more thoughtful approach to email campaigns from senders.
Email deliverability testing is now an integral part of an email sending program for a lot of organizations. Not only does deliverability testing reveal issues that lead to low Inbox placement and response rates, when done regularly it also allows to catch the issues before they have a serious impact on the sender reputation.