SMTP Retries and Deferrals: Understanding Email Delays & How to Fix Them

The main protocol for sending email is the Simple Mail Transfer Protocol (SMTP), which manages both the sending and routing of messages between networked devices. But the journey from sender to recipient can sometimes be rocky. This may also result in SMTP retries/deferred by the senders. Though these mechanisms are supposed to be able to deal with […]
SMTP over IPv6: The Future of Email Servers and What It Means for Deliverability

The Simple Mail Transfer Protocol (SMTP)’s primary role is to make sure messages take the right path from senders to recipients. But with the world reeling with the internet boom, the traditional IPv4 system reached a point where it could no longer keep up. IPv4, the internet’s original addressing method, only has a limited number of […]
Maximizing Cold Email Impact: Social Proof and Email Deliverability

Can you remember the last thing you wanted to buy? Take a minute to think back to the moment leading up to the actual purchase. What did you do first? Chances are, you talked to people who made similar purchases. But knowing that someone bought the same thing (and is happy with their decision) is […]
What Is DNS Propagation and How to Minimize Its Impact on Email Deliverability

DNS records undergo modifications — such as SPF, DKIM, DMARC, MX, A records, or PTR records. These updates or modifications should propagate across global DNS servers, caching information a certain period before it refreshes. These modifications should not take longer than a few minutes to 48 hours. For rare and unusual circumstances these can take […]
Why Implementing BIMI is a Game-Changer for Your Brand

In 2024, the number of sent and received emails reached 361.5 billion. Can you believe it? And this 2025, it is estimated to be 376.4 billion. The point is, you cannot make sure your email is seen, much less read. Assuming your email gets to the inbox at all, and there’s no guarantees of that either. That is […]
How to Boost Brand Recognition and Email Deliverability

While email marketing plays a key role in brand building, it has become more challenging than ever. Emails may go unnoticed among the others in the inboxes. Then there are phishing and spoofing attempts. And yes, the infamous spam folder and a thousand other challenges that businesses tackle every day. BIMI (Brand Indicators for Message Identification) […]
How to Use SPF Flattening Tools to Optimize Your Email Deliverability

Email authentication is a vital procedure for maintaining high email deliverability. Having the slightest chance of your email authentication derailing can and will affect your reputation. One of the most important email authentication methods there is, the Sender Policy Framework (SPF), an authentication method confirming every email sent using your domain has full authorization by […]
Managing Multiple Email Identities with Aliases A Guide for Better Email Deliverability

Multiple email identities can be appealing. It makes your business, or professional profile presentable. Besides its aesthetic potential, multiple email identities can also be an effective system to effectively communicate with different audiences. However, acquiring various main email accounts can be time consuming and may result in mismanagement of email communication. This is why various […]
Examples of Positive and Negative Feedback Loops in Email Deliverability

For email marketing strategists, understanding the recipient’s engagement level and their reactions to the email contents can help them determine if the campaign is working, or needs further developments. This is an opportunity that would be difficult to determine without the presence of Feedback loops. Feedback loops are widely regarded by email marketers to gauge […]
Why a clean B2B email list is the secret to better engagement and conversions

Statistics show that of the three businesses with a website, two live and breathe email marketing as one of the most effective tools of reaching their prospects, leads, clients, and in turn driving sales. But its effectiveness really depends on the quality of your email list. A B2B email list may be the key distinction […]