SMTP Authentication (SMTP AUTH)  is not only a fundamental mechanism that protects your emails against spoofing and phishing attacks. It also has a direct contribution to your email deliverability and brand recognition.  Depending on how well you set up your SMTP AUTH you are less likely to experience SMTP errors related to authentication failures —potentially […]

There are tons of SMTP related errors that an average email user can encounter. Some of them can be due to IP reputation concerns, while others are rooted and are likely the result of a temporary errors failure — retryable errors.  One of these temporary errors is the SMTP error 421 4.3.2 (Service Shutting Down),

One of the top channels of communication for businesses is email, which unfortunately makes it one of the prime targets of cyberthreats like phishing, data interception, and spoofing. Encryption is the answer. Without it, emails are transmitted as plaintext over the Internet where people can steal sensitive information.  SMTP (Simple Mail Transfer Protocol) is the

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

Email is a valuable communication channel, especially for many businesses and email marketers. It is known to develop the highest ROI, which should make inbox placement and email deliverability a priority.   The capability to ensure that your emails are delivered to the intended recipient is a simple idea, yet there are still some email users

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

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)

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

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

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