Deliverability

There are a variety of reasons for an email bouncing, and we’ll touch on the main ones in a moment. When it happens, a "return to sender" message (also known as an SMTP Reply)...

Integrating email into an app isn’t as simple as just adding an email functionality. You also have to consider email deliverability issues, email marketing metrics like open rates, and...

“Dear friends and family, if you’ve gotten any suspicious-looking messages from me recently, please don’t open them!” That’s probably the message you’d send to your...

There are 100 billion stars in our galaxy alone, but we bet you can only call out a few by name. Likewise, you can get incredibly granular – even microscopic – when it comes to...

What’s sender reputation? Glad you asked. In this article, we define what sender reputation is and its components, we’ll cover our top tips, and some of the most common mistakes...

We can’t think of many things more immediately impactful to your deliverability than landing on a blocklist. Once you’ve been flagged, ISPs won’t let you through the gate into...

You’re setting up your Email Program and you’ve hit a snag: dedicated IP vs. shared IP? While both have their advantages, there are some key things that you should know before...

If you find that either your domain name or IP address is on an email blocklist, it’s easy to freak out. You certainly wouldn’t be alone if you did. Getting blocklisted could tank your...

We all have those moments when we get nervous and need to double-check ourselves. Did we fill in the right answer bubbles on a test? Did we type in the right password when...

SPF doesn’t refer to how long you can wait before you have to reapply your sunblock (seriously, go get some). Instead, the term “SPF” refers to a security measure that helps...