---
schema_version: "1"
id: 3ff1d9ff6633064f63a29ae1a01158cf8d813890274efaad2580d53ceab4f271
title: Provision and Secure Proxied Custom Domains for Your Sender Authentication Package
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_mce_provision_secure_proxied_custom_domains_sender.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_mce_provision_secure_proxied_custom_domains_sender.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: a06053958172e6bb93c0af535d7d623bf41e419e709afb7154e2862ba634701d
description: Set up and protect custom domains for your Sender Authentication Package (SAP) that go through a proxy rather than routing directly to Marketing Cloud Engagement. When you configure a proxy for domains hosted by Marketing Cloud Engagement, end-to-end connectivity and security are verified automatically so you can manage domains without manual checks.
products:
  - Cross Cloud
release: "264"
---
# Provision and Secure Proxied Custom Domains for Your Sender Authentication Package

Set up and protect custom domains for your Sender Authentication Package (SAP) that go through a proxy rather than routing directly to Marketing Cloud Engagement. When you configure a proxy for domains hosted by Marketing Cloud Engagement, end-to-end connectivity and security are verified automatically so you can manage domains without manual checks.

**Where:** This change applies to Marketing Cloud Engagement Pro+, Corporate+, and Enterprise+ editions.

#### See Also

- [_Salesforce Help:_ Configure Self-Hosted DNS for Custom Domains Routed Through a Proxy](https://help.salesforce.com/s/articleView?id=mktg.mc_es_self_hosted_dns_for_domains_with_proxy.htm&type=5&language=en_US)