# Mautic 5.0.3 AWS SNS endpoint is not working. GIve a solution to handle bounce and Complaint emails

**URL:** https://forum.mautic.org/t/mautic-5-0-3-aws-sns-endpoint-is-not-working-give-a-solution-to-handle-bounce-and-complaint-emails/31334
**Category:** Product Support
**Created:** [March 19, 2024, 7:00am UTC](https://forum.mautic.org/t/mautic-5-0-3-aws-sns-endpoint-is-not-working-give-a-solution-to-handle-bounce-and-complaint-emails/31334 "2024-03-19T07:00:32Z")
**Posts on this page:** 1
**Showing post:** 51

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### Author: ![benbon](https://avatars.discourse-cdn.com/v4/letter/b/c37758/32.png) [@benbon](https://forum.mautic.org/u/benbon)
#### Post date: [June 24, 2024, 3:52pm UTC](https://forum.mautic.org/t/mautic-5-0-3-aws-sns-endpoint-is-not-working-give-a-solution-to-handle-bounce-and-complaint-emails/31334/51 "2024-06-24T15:52:53Z")

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Hi there,

For this error:

Unable to send an email: There are 1 partial failures, check logs for exception reasons.

Edit dsn in your local.php manually to make it work.

It’s because your generated secret key from AWS has a least one special character (=,, …). Mautic does some weird thing with encoding those characters in local.php and even if you change back to a secret key with no special character, it will still not work.

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