# SparkPost API Change
**URL:** https://forum.mautic.org/t/sparkpost-api-change/10221
**Category:** Product Support
**Created:** [February 12, 2018, 4:13am UTC](https://forum.mautic.org/t/sparkpost-api-change/10221 "2018-02-12T04:13:37Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@petertl](https://forum.mautic.org/u/petertl)
#### Post date: [February 12, 2018, 4:13am UTC](https://forum.mautic.org/t/sparkpost-api-change/10221/1 "2018-02-12T04:13:37Z")
Hi,
Per today SparkPost changed its email API. I found this information regarding the change:
> Summary of the current and future behavior The following is a summary of the current and future behavior for when a recipient is suppressed
>
> **SMTP**
>
> - Current: return a ‘250 Ok’ and ‘policy rejection’ event (no injection event)
> - Future: return a ‘250 Ok’ with ‘injection’ event followed by a ‘bounce’ event REST API
>
> **Single recipient transmission**
>
> - Current: return a 400 with special error message, followed by a ‘generation rejection’ event
> - Future: return a 200 with an ‘injection’ event followed by a ‘bounce’ event Multiple recipient transmission
>
> - Current: return a 200 followed by a ‘generation rejection’ event (no injection event)
> - Future: return a 200 with an ‘injection’ event followed by a ‘bounce’ event
>
> When a bounce is generated due to suppression the webhook will have bounce\_class of “25” and an error\_code of “554” and reason of “Recipient address was suppressed due to customer policy” or “Recipient address was suppressed due to system policy”
Source: [MessageBird | An omnichannel communications platform](https://www.sparkpost.com/blog/upcoming-api-transmission-endpoint-changes/)
I want to encourage anyone with the appropriate technical skill to take a look and evaluate if the changes affect the way Mautic works with SparkPost or even breaks it.
All the best,
Peter
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### Author:  [@silavapi](https://forum.mautic.org/u/silavapi)
#### Post date: [October 17, 2019, 4:34pm UTC](https://forum.mautic.org/t/sparkpost-api-change/10221/2 "2019-10-17T16:34:34Z")