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Building a Bulk Asynchronous SparkPost Recipient Validation Tool

May. 26, 2022 / By Zachary Samuels

One of the questions we occasionally receive is, how can I bulk validate email lists with recipient validation? There are two options here, one is to upload a file through the SparkPost UI for validation, and the other is to make individual calls per email to the API (as the API is single email validation).

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Envelopes represent deliverability for email marketing

Part 3: Nine Deliverability Tips for Email Marketers

Mar. 10, 2022 / By Co Authors

Welcome to the third and final post in our series of nine email marketing tips for better deliverability – make sure your messages land in the inbox. If you missed either of our first posts, make sure to check them out before diving into today’s tips: Part 1 | Part 2 7) Utilize a preference

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Deliverability Tips for Email

Part 2: Nine Deliverability Tips for Email Marketers

Mar. 3, 2022 / By Co Authors

In our last post, we broke down the first of nine deliverability tips email marketers need to make sure messages land in the inbox. We started with a clear signup/opt-in process, a welcome message/series, and an important look at the difference between delivery and deliverability. Today we’ll break down the next three email deliverability tips

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Deliverability Tips for Email

Part 1: Nine Deliverability Tips for Email Marketers

Mar. 1, 2022 / By Co Authors

To maximize your email investment, you need high deliverability. But getting there can feel like a major challenge. The truth is, you can get there and our team of deliverability strategists are here to help. We’ve compiled this series of deliverability tips for email marketers and today we’ll break down the first three of our nine

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SparkPost’s Deliverability Analytics Blocklist Impact Feature

A Deeper Look at SparkPost’s Deliverability Analytics Blocklist Impact Feature

Nov. 17, 2021 / By Tim Roy

One of the most innovative components of Sparkpost’s Deliverability Analytics is the Blocklist Impact feature. Even the healthiest sender occasionally ends up on a blocklist. This can create a lot of confusion since it’s often not clear which mailbox providers are using which blocklist and what is the resulting impact on deliverability and inbox placement.

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SparkPost Launches Automatic Seeding in Inbox Tracker for Salesforce Marketing Cloud

SparkPost Launches Automatic Seeding in Inbox Tracker for Salesforce Marketing Cloud

Nov. 1, 2021 / By Steve McElroy

Automatic seeding is now available in Salesforce’s Email Studio & Automation Studio to drive improved deliverability.  The next phase of our partnership with Salesforce Marketing Cloud is here – and if you’re an email marketer with too much to do and not enough time, it’s going to be a game-changer.  Automatic seeding enables marketers and

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German Deliverability Practices Providers

How to Get Better Delivery to German Mailbox Providers

Jun. 22, 2021 / By Tracey Crawford

Are you having difficulties getting mail delivered to German mailbox providers such as,, and  If so, you are not the only one.  After pouring through postmaster pages and having many email conversations with support teams, here is what I have found to be the key items that you should pay attention to

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2020 Early Holiday Email Activity

Nov. 17, 2020 / By John Landsman

Using our platform, Manager of Research Analytics, John Landsman, analyzes trends in 2020 early holiday email activity in light of COVID-19.

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Google Postmaster Tools

Google Postmaster Tools Now Available in Inbox Tracker!

May. 13, 2020 / By Steve McElroy

On a daily basis, we work with clients to track down and remediate issues that affect their email deliverability.  When it comes to getting to the bottom of a Gmail deliverability issue, reviewing Google Postmaster Tools data is near the top of the list. Our deliverability team knows that the postmaster dashboard data is a

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Gmail Smart Unsubscribe

What is Gmail Smart Unsubscribe?

Mar. 11, 2020 / By Tony Patti

Director of Deliverability Consulting, Tony Patti, explains how Gmail Smart Unsubscribe works and how it can impact your deliverability.

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