generated: '2026-08-13'
method: searched
source: https://developer.sendoso.com/iframe/abouttheiframe
provider: Sendoso
providerId: sendoso
description: >-
  Sendoso's only client-side embeddable surface is a hosted iFrame that renders the whole
  Sendoso sending flow inside a partner application. There is no component library, no web
  components, no element/SDK loader — it is one URL in an iframe, and access to it is granted
  by hand.
component_count: 1
families:
  - id: sending-iframe
    name: Sendoso iFrame
    kind: hosted-prebuilt-surface
    description: >-
      "With the Sendoso iFrame we handle the sending & user experience; you display it."
      Embeds the full Sendoso send flow into a partner app so a user can send without
      leaving it — internal CRMs, channel partner apps, sales engagement tools.
    url: https://app.sendoso.com/v2/plugin/sends
    setup_url_pattern: 'https://app.sendoso.com/{{Custom}}/setup'
    dimensions:
      width_px: 435
      height_px: 500
    prepopulation: >-
      The iFrame endpoint accepts optional URL parameters (recipient name, address fields and
      others) to prepopulate the send flow. All special characters must be HTML encoded.
    inputs_required:
      - Sender information
      - Recipient information
      - 'Delivery location: recipient email for electronic gifts'
      - 'Delivery location: name, street, city, state, country, postal code for physical gifts'
    access:
      self_serve: false
      process: >-
        Email developers@sendoso.com with a summary of the use case and the URL of your
        application; Sendoso authorizes the origin and hosts the iFrame within it.
    documented_deployments:
      - name: Outreach.io
        url: https://sendoso.zendesk.com/hc/en-us/articles/115000814091-Outreach-io-Integration
      - name: SalesLoft
        url: https://sendoso.zendesk.com/hc/en-us/articles/115000872071-SalesLoft-Integration
    assets:
      icon: https://drive.google.com/file/d/1vGQ8fQy7A0w5ZEYjfvclaWrrItRs_yzU/view
      icon_note: >-
        Sendoso distributes the embed icon as a Google Drive link, not from a CDN it controls.
loader_libraries: []
embedding_allowlist:
  observed: true
  note: >-
    app.sendoso.com's Content-Security-Policy `frame-ancestors` names the exact partner
    surfaces permitted to embed it — an explicit, observable allowlist rather than a
    documented one. Probed 2026-08-13.
  hosts:
    - '*.salesforce.com, *.lightning.force.com, *.visual.force.com, *.visualforce.com, *.vf.force.com'
    - app.salesloft.com
    - '*.outreach.io'
    - '*.amazon.com, *.amazon.ca, *.amazon.co.uk'
    - '*.eloqua.com'
    - '*.groove.co, *.grooveapp.com'
    - '*.hubspot.com'
    - '*.insidesales-playbooks.com, *.xant.ai'
    - mail.google.com, calendar.google.com
    - '*.activehosted.com'
    - '*.crm.dynamics.com'
    - '*.gainsightcloud.com'
    - '*.catalyst.io'
    - '*.vitally.io'
    - '*.monday.com'
    - '*.pipedrive.com'
    - '*.zendesk.com'
    - '*.zoho.com'
    - '*.app.gong.io'
    - outlook.office.com
    - '*.clari.com'
    - 'chrome-extension://*'
not_published:
  - Web components / custom elements
  - A JS SDK or element loader
  - Embedded dashboards or reporting widgets
  - Any npm-distributed embed package