Can I add a dedicated IP to my existing Paid plan?

August 25, 2017
The older paid plans no longer offer the ability to add dedicated IPs to your account. If you require dedicated IPs please upgrade to one of our new plans from the Accounts/Billing page. Please note that new plans from 150K upwards include a dedicated IP, allowing you to add an IP Pool and new IP.…
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Can I switch back to an old plan?

August 17, 2017
When you switch to a new plan (either upgrade or downgrade), you won't be able to later switch back to an old plan that we no longer offer.
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Error messages when using SMTP

May 8, 2017
If you send mail through SMTP rather than REST, you may encounter some SMTP error messages. Here's what to do when you receive them.
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Why Configure DKIM?

April 28, 2017
If you're sending via SMTP you may wonder why configure DKIM? Learn why configuring DKIm is the best way to protect your sending reputation.
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How Do I Test Using the Sink Server on SparkPost?

April 28, 2017
Our sink server allows you to perform sink test messages for integration testing without attempting delivery of email to actual addresses.
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Message Delivery: Understanding Delays and Bounces

April 28, 2017
Understanding delays and bounces. If the final disposition for messages sent from SparkPost is delivered or bounced, what are delays? Learn more here.
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Why do time series graphs on the summary page sometimes display inaccurate rate calculations?

April 28, 2017
Time series graphs on the summary page calculate most rate metrics against the number of targeted messages. Display the results for specific times and more.
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Suppression Timing

April 28, 2017
It can take a minute for suppression events like spam complaints, unsubscribe requests, and hard bounces to be collected and processed. Learn more here.
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Why Can’t I Store Images?

April 28, 2017
SparkPost doesn't store images for you. If you are not using a front end application where you can store your images, here are some recommendations.
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