Your software
My Mautic version is: 5.4.35
Your problem
My problem is:
Issue with SendGrid Webhook Integration in Mautic (/mailer/callback) for Bounce Events
I’m currently using the DSN for sending emails, which works perfectly:
(shared in ss)
Emails are sent successfully without any issues.
To handle bounce events, I set up a webhook in SendGrid pointing to:
https://my_mautic/mailer/callback
These errors are showing in the log:
[2025-01-30 12:28:28] Webhook Request:
Headers: {“host”:[“…”],“user-agent”:[“SendGrid Event API”],“content-length”:[“319”],“accept-encoding”:[“gzip”],“content-type”:[“application/json;charset=utf-8”],“x-forwarded-for”:[“…”],“x-forwarded-host”:[“3d9f-103-206-136-133.ngrok-free.app”],“x-forwarded-proto”:[“https”],“x-twilio-email-event-webhook-signature”:[“MEQCIDQhKl+9/docY4dl6hNgK8fJNviJurCK1ajuvo9UUSeOAiB/hshyHoWKVzKNuJhyzTRQppUI8MN4CMFNel09MKs1SQ==”],“x-twilio-email-event-webhook-timestamp”:[“1738240105”],“x-php-ob-level”:[“1”]}
Query Params:
Payload: [{“email":"demo1sxasxs@gmail.com”,“event”:“dropped”,“reason”:“Bounced Address”,“sg_event_id”:“ZHJvcC00ND…mZWeFAzXzlBLTA”,“sg_message_id”:“0Tn2brHyRCe62RfVxP3…7068-16.0”,“smtp-id”:“<050dcd440eb87e91.857b0d@st…ions.in>”,“timestamp”:1738240104}]
[2025-01-30 12:28:28] Response Status: 404
Response Content: No email transport that could process this callback was found
The webhook seems to be sending data correctly, but I’m not sure if Mautic is processing the events as expected.
Has anyone successfully configured SendGrid webhooks for bounce handling in Mautic? Any insights on debugging or best practices for ensuring the webhook is correctly interpreted by Mautic?
