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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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email weigh

How Much Does an Email Weigh?

Jul. 6, 2020 / By Sam Holding

Head of International, Sam Holding, shares just how much an email weighs and what senders can do to reduce their carbon footprint.

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spam traps

Spam Traps: Break it Down

Aug. 16, 2019 / By Avi Goldman

Find and fix issues faster with our breakdown of spam traps now available as part of our Spam Trap Monitoring feature inside of SparkPost Signals.

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Recipient Lists in SparkPost

How to Create, Delete, Retrieve and Update an Email Recipient List in SparkPost

Jul. 8, 2015 / By Aydrian Howard

Whenever you’re sending bulk email, or even email to more than a handful of recipients, it’s best to put them in an email recipient list. This is particularly true if you plan to send multiple emails to the same recipients. Otherwise, you’ll have to reference every recipient every time you send an email, and the packet will be large. You can avoid these issues by referencing a recipient list. You can create, retrieve, update and delete recipient lists using the SparkPost API.

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email vendor

Sender Reputation Part II: Splitting Email lists across VirtualMTAs

Oct. 2, 2013 / By Sparky

In part I we looked at how email filtering using sender reputation has brought about a change in sending behavior necessitating admins to rethink email delivery best practices and configurations.  In Part II, we'll take a look at some different ways to optimize PowerMTA to work with the challenges introduced by reputation-based delivery.

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