---
schema_version: "1"
id: ab922d7724eb7874d895d6774c03870e5184ac03389a39904e286d72012bae57
title: Email Requirements and Security
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/sales/264-0-0/emailadmin_requirements_security.md
canonical_url: https://help.salesforce.com/s/articleView?id=sales.emailadmin_requirements_security.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 29f0712cc172ebc05c0d2e9b0484f8d7ec4eec0c9d786b2ad8ab0810bfcce175
description: Email domain verification is required before anyone can send email from Salesforce, and each user must verify their email address and return email address. Salesforce supports several email security mechanisms to protect outgoing email.
products:
  - Sales Cloud
  - Cross Cloud
  - Service Cloud Voice
release: "264"
---
# Email Requirements and Security

Email domain verification is required before anyone can send email from Salesforce, and each user must verify their email address and return email address. Salesforce supports several email security mechanisms to protect outgoing email.

Before Salesforce can send email on behalf of your users, domain-level and user-level verification is required. Salesforce admins verify the domains that you own, and users verify their email and return email addresses. To help users, Salesforce admins can identify users with unverified email addresses and help them complete this required step.

Salesforce supports several email security mechanisms: Transaction Layer Security (TLS), Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, Reporting, and Conformance (DMARC). Each mechanism protects different aspects of an email message.

For details about verifying your email-sending domains, helping users verify their email address, and email security mechanisms, see [Email Security](https://help.salesforce.com/s/articleView?id=xcloud.security_email.htm&type=5&language=en_US).

#### See Also

- [Secure Your Salesforce Org](https://help.salesforce.com/s/articleView?id=xcloud.security_secure_your_org.htm&type=5&language=en_US)