When you sign up for a Postmark account, we ask you to use a work email. If you...
New Features for SMTP Field Manual
Here at Postmark, we believe email delivery shouldn’t be a mysterious black box. That’s why we created the SMTP...
How do I select a DMARC solution for my business?
Data Visualization: A good DMARC solution should clearly identify high-risk sources, forwarders, and common email providers. It should...
Email Expert Talk 4: Anna Ward, Head of Deliverability at Postmark
In our series ‘Email Expert Talk’ we discuss all things email with distinguished experts who know about the struggles and...
Talking Email Podcast: Why emails bounce and how to handle them responsibly?
Anna Ward, the Head of Deliverability at Postmark, gives us an in-depth look at bounces. We discuss what...
What the heck is BIMI?
I don’t blame you for asking. Honestly it sounds like a new Scandi-style furniture company, or maybe an...
Talking Email Podcast: Solving extreme email deliverability mysteries
Anna Ward, Postmark’s Head of Deliverability, discusses her path to becoming an email deliverability expert and explores a...
API Bulk: The Final Frontier
Traditionally Postmark has focused on sending only transactional messages with the highest deliverability standards, and that’s produced a...
How blacklists don’t work
Oh, how I love tossing an IP into multirbl.valli.org, a true one-stop-shop to instantly check “all the things.” But...
My file is not small, it’s fun-sized!
Your message file size matters. Some may think it’s great to send a ton of content in one...
Filtering changes at Gmail
In the past couple of weeks, we’ve seen multiple customers report that their messages to Gmail/GSuite recipients are...
How to check your IP reputation
Your IP represents the sending environment, typically a shared IP owned by your email service provider (ESP). Knowing...
How to check your domain reputation
While IP reputation is still important, most people are sending mail over an IP shared with other senders....
Reacting to Gmail reputation-based bounces
We’ve all been there—that message you’ve been waiting for is finally found in the depths a Gmail spam...
How to warm up a domain
Perhaps you’ve started a new business, you’re going through a branding shift, or maybe you’re just adding a...
Reacting to Gmail reputation-based bounces
We’ve all been there—that message you’ve been waiting for is finally found in the depths a Gmail spam...
A new face in Philly
Hello, world! My name is Anna, and I’m the new Head of Deliverability for Postmark. You might be...
The Role Of ESPs In Email Deliverability
Our Deliverability Team gets questions like this all the time: “Why is my bounce total higher in ESP...
A MailChimp Record: 1.2 Billion Emails on Black Friday
As you may have heard, it’s been a crazy holiday season for our deliverability team. We predicted we’d send a...
Black Friday and Cyber Monday Email Marketing Tips
Here at MailChimp, all we want for the holidays is for you to send beautiful, powerful, and effective...