spam testing

What Is DMARC?

DMARC, also known as Domain-based Message Authentication, Reporting and Conformance, is a form of email authentication that builds on existing authentication protocols. These authentication protocols play an important role in protecting users from spammy or malicious email content. We’ve previously covered other email authentication protocols including DomainKeys Identified Mail (DKIM) and Sender Policy Framework (SPF). … Continue reading “What Is DMARC?”

What Is a Blacklist and Why Is My Domain on One?

We’ve said it once and we’ll probably say it 100 times more: Deliverability is always on the minds of email marketers. And when it comes to deliverability, blacklists play a big role. In this post, we’ll walk you through what a blacklist is, how your domain can get on them, and steps you can take … Continue reading “What Is a Blacklist and Why Is My Domain on One?”

What Is SPF? Everything You Need to Know About Sender Policy Framework

We hear a lot from our readers and customers about email deliverability. Sure, there’s all the buzz about GIFs, Outlook and Gmail inbox changes, but avoiding the spam folder is still top of mind. We’ve written extensively on DomainKeys Identified Mail (DKIM) and how they affect email deliverability. In this post, we’ll cover another spam-related … Continue reading “What Is SPF? Everything You Need to Know About Sender Policy Framework”

What Is My SpamAssassin Score and What Does it Mean?

This is the second entry in our series on SPAM filters: how they work, how to avoid them, and what we can learn from their output. SpamAssassin is an open source, content-matching SPAM filter released under the Apache License 2.0. It uses a number of different filtering techniques, including DNS-based spam detection, Bayesian filtering, external programs, blacklists and online databases. Luckily for us, it produces a header which we can use to determine how it categorized and scored your email.

Is 100% Email Deliverability Possible?

As email marketers, we’re always striving to improve our email deliverability. It’s one of those constant worries gnawing at us – will my message reach the inbox?   Recently, we were chatting deliverability on social media and came across an interesting question: “Can I achieve 100% deliverability?” This query left us scratching our heads. So, … Continue reading “Is 100% Email Deliverability Possible?”

How Inbox Pros Used Email Testing to Improve Clients’ Email Deliverability and ROI

Email marketers know that email testing can be a crucial part of brand reputation, but did you know email testing is also an important factor in email deliverability? The experts at Inbox Pros know this all too well. “We needed a system that would help us review how [clients’] emails were rendering, so we could … Continue reading “How Inbox Pros Used Email Testing to Improve Clients’ Email Deliverability and ROI”

How White-Labeled Email Testing Services Can Improve Server Reputation

When we talk about the advantages of email testing, we often focus on the benefits for email marketers and developers; sending a broken email can negatively affect a campaign’s performance, brand reputation and ROI. But email testing plays another important role in reputation – server reputation. “As an email service provider (ESP), your server reputation … Continue reading “How White-Labeled Email Testing Services Can Improve Server Reputation”