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Mon, Apr 20, 2020 10:45 pm

Removing an email address from a SparkPost suppression list

I use SparkPost to distribute a newsletter by email for an organization I support. A member of the organization reported to me that she has not been receiving email copies of the organization's newsletter, so I logged into the SparkPost account after this month's newsletter was sent and clicked on Events on the Dashboard, selected "Last 7 Days" in the Events Search date range selection field and then put the member's email address in the "Filter by recipient email address" field and hit Enter. I saw an "Injection" and a "Bounce" event whereas I would see an "Injection" and a "Delivery" event for email successfully sent to a recipient. When I clicked on the View Details button, I found that the email sent to the member bounced with SparkPost listing the reason as "554 5.7.1 [internal] recipient address was suppressed due to customer policy." At the SparkPost page on the problem, 554 5.7.1 — Recipient address was suppressed due to customer policy, I saw the possible reasons for that bounce message appear listed as those below:

  1. The address was invalid (address does not exist)
  2. The user clicked the list-unsubscribe header
  3. The user clicked one of your emails and flagged it as SPAM. This FBL (FeedBack Loop) event should add that email address to your Suppression List.

[ More Info ]

[/network/email/sparkpost] permanent link

Mon, Sep 05, 2016 10:37 pm

Checking SparkPost Message Events via the API with Wget

If you are using SparkPost for email delivery and wish to check message events, you can view message events information using the Wget utility, which is available for Linux, OS X, and Microsoft Windows systems. The man page for the command on a CentOS Linux system is here and the home page for the utility is at GNU Wget. Alternatively, for information on how to use curl, instead, see SparkPost - Addresses Associated With Bounced Email.

To download message events information for the last hour using the SparkPost application programming interface (API) with Wget, you can use a command similar to wget,out_of_band --header="Authorization: my_API_key" --header="Accept: application/json" where my_API_key is an API key provided to you by SparkPost. However, if you haven't granted access to message events for that key, you will receive a "ERROR 403: Forbidden" error as shown below. The API key, which in this case is a dummy key, is provided by sending a custom header that includes Authorization: my_API_key:

$ wget,out_of_band
 --header="Authorization: d12cc66a1a29755ef10fc1a1450d96dc23495970" --header="Ac
cept: application/json"                                --2016-09-04 21:44:34--,out_of_band
Resolving (,,
Connecting to (||:443... conne
HTTP request sent, awaiting response... 403 Forbidden
2016-09-04 21:44:39 ERROR 403: Forbidden.


To grant a key permission to access message event data, log into your SparkPost account at the SparkPost website, then click on Account, select API Keys and for an existing or new API key check the check box next to "Message Events: Read-only".

[ More Info ]

[/network/email/sparkpost] permanent link

Sun, Sep 04, 2016 9:06 pm

SparkPost - Addresses Associated With Bounced Email

If you are using SparkPost for email delivery, you might expect that you can determine which email addresses in a mailing list resulted in bounced messages by logging into the SparkPost website, clicking on Reports and then Bounces. But, though that will give you a total number for bounced email messages and the percentage of messages that bounced, and even the reasons email bounced, the report doesn't identify the individual email addresses that caused email to bounce. To see particular addresses that caused email to bounce, if you click on Lists, rather than Reports, and then click on Suppressions and check the check box next to Bounce Rule and click on Search, you will see recipients email addresses listed that triggered a bounced email.

[ More Info ]

[/network/email/sparkpost] permanent link

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