My DKIM Won't Verify

Mar 23, 2017 11:29AM EDT
Q: Why won't my DKIM record verify? A: While configuring your Sending Domains, you need to "verify" that the ...
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Why do we need to configure DKIM to send anything?

Mar 23, 2017 11:21AM EDT
Q: I tried sending after configuring my sending domain but it didn't go through. I'm getting the error that it...
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Suppression timing

Mar 06, 2017 10:12AM EST
It can take a minute for suppression events like spam complaints, unsubscribe requests, and hard bounces (perm...
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554 5.7.1 - Recipient address was suppressed due to system policy

Jan 25, 2017 04:25PM EST
The "system policy' that this error is referring to is actually our suppression list. SparkPost has its own su...
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How Are Messages Retried?

Jan 25, 2017 04:30PM EST
Both SparkPost and SparkPost Enterprise employ the same settings for message retries, including message expira...
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After Receiving a 250 OK, Why Are Messages Being Rejected?

Nov 22, 2016 06:39PM EST
Q: I receive a 250 OK when injecting into the system through SMTP, but the message shows up as rejected in the...
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SMTP Connection Problems

Jan 25, 2017 04:36PM EST
If you are having problems connecting to SparkPost over SMTP, here's a checklist of things to verify: The S...
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Daily and Monthly Quota Limits

Mar 21, 2017 03:40PM EDT
Each SparkPost account has a daily and monthly quota based on the current plan level. These represent the num...
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Relaying Denied error

Nov 13, 2015 04:53PM EST
If you are getting a 'Relaying denied' error while trying to connect to smtp.sparkpostmail.com, it is likely b...
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How Do I Access the REST APIs?

Nov 22, 2016 06:43PM EST
Q: What URL do I use to access the REST APIs? A: The REST APIs can be accessed at https://api.sparkpost.com/a...
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