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 […]
LashBack Unsubscribe Blacklist: What It Is and How to Get Delisted
Have you heard of the LashBack Unsubscribe Blacklist (UBL)? If you’re working in email marketing, it’s something you should know about. The UBL is a blacklist that can hurt your email deliverability. It’s specifically for companies that don’t respect unsubscribe requests, listing IP addresses that send emails to people who opted out. Why does this […]
RATS-NoPtr Blacklist: How to Get Delisted [Solved]
Are your emails landing in spam? If so, you might be on an IP blacklist – and one of the culprits could be RATS-NoPtr. Blacklists are lists of IP addresses that have shown spam-like behavior or technical issues, which can block your emails from reaching recipients. RATS-NoPtr is a unique blacklist that flags IPs lacking […]
