Lobcom Webhooks

generated: '2026-07-20'
method: searched
source: https://docs.lob.com/#tag/Events + openapi/lobcom-openapi-original.yml (event type enums)
spec_type: Webhooks
note: Lob delivers events via webhooks (no published AsyncAPI). Webhook payloads are HMAC-signed; verify
  the signature header before trusting an event. Event type catalog derived from the OpenAPI event-type
  enums.
delivery:
  mechanism: HTTP POST to a configured webhook URL
  signature: HMAC signature header (verify before processing)
  configuration: Dashboard > Webhooks
event_families:
- resource: postcard
  events:
  - postcard.created
  - postcard.rejected
  - postcard.rendered_pdf
  - postcard.rendered_thumbnails
  - postcard.deleted
  - postcard.delivered
  - postcard.failed
  - postcard.mailed
  - postcard.in_transit
  - postcard.in_local_area
  - postcard.international_exit
  - postcard.processed_for_delivery
  - postcard.re-routed
  - postcard.returned_to_sender
  - postcard.viewed
- resource: letter
  events:
  - letter.created
  - letter.rejected
  - letter.rendered_pdf
  - letter.rendered_thumbnails
  - letter.deleted
  - letter.delivered
  - letter.failed
  - letter.mailed
  - letter.in_transit
  - letter.in_local_area
  - letter.international_exit
  - letter.processed_for_delivery
  - letter.re-routed
  - letter.returned_to_sender
  - letter.certified.mailed
  - letter.certified.in_transit
  - letter.certified.in_local_area
  - letter.certified.processed_for_delivery
  - letter.certified.re-routed
  - letter.certified.returned_to_sender
  - letter.certified.delivered
  - letter.certified.pickup_available
  - letter.certified.issue
  - letter.return_envelope.created
  - letter.return_envelope.delivered
  - letter.return_envelope.in_transit
  - letter.return_envelope.in_local_area
  - letter.return_envelope.international_exit
  - letter.return_envelope.processed_for_delivery
  - letter.return_envelope.re_routed
  - letter.return_envelope.returned_to_sender
  - letter.viewed
- resource: self_mailer
  events:
  - self_mailer.created
  - self_mailer.rejected
  - self_mailer.rendered_pdf
  - self_mailer.rendered_thumbnails
  - self_mailer.deleted
  - self_mailer.delivered
  - self_mailer.failed
  - self_mailer.mailed
  - self_mailer.in_transit
  - self_mailer.in_local_area
  - self_mailer.international_exit
  - self_mailer.processed_for_delivery
  - self_mailer.re-routed
  - self_mailer.returned_to_sender
  - self_mailer.viewed
- resource: check
  events:
  - check.created
  - check.rejected
  - check.rendered_pdf
  - check.rendered_thumbnails
  - check.deleted
  - check.delivered
  - check.failed
  - check.mailed
  - check.in_transit
  - check.in_local_area
  - check.international_exit
  - check.processed_for_delivery
  - check.re-routed
  - check.returned_to_sender
- resource: address
  events:
  - address.created
  - address.deleted
- resource: bank_account
  events:
  - bank_account.created
  - bank_account.deleted
  - bank_account.verified
- resource: letter_add_on
  events:
  - buckslips
  - cards
  - custom_envelope