What Secure Ciphers does SparkPost Support?

September 14, 2017
To ensure the highest degree of security and stability for our customers, SparkPost will be disabling a number of insecure TLS and stream cipher protocols on or after October 15. These include TLSv1, ECDHE-RSA-RC4-SHA, RC4-MD5, and RC4-SHA. This change will affect both REST and SMTP injection endpoints. # How will I know if I'm affected?…
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I have paid for overages or have a dedicated IP on my Free plan, how does this affect my support moving forward?

August 28, 2017
Free plans even with Add-ons such as a dedicated IP or previous overages are still subject to the same Free plan support changes, which means that case support will end on October 16th 2017. You are still able to contact our Billing team via [email protected] should you have any queries on payments etc. All accounts…
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If I stay on my plan, can I increase my daily limits?

August 26, 2017
Your plan settings will remain as they are now. If you need a larger daily limit, please upgrade to one of our new plans. Please note that daily limits are always based on your account’s sending performance and history with SparkPost and are reviewed on a case by case basis.
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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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