--- schema_version: "1" id: 4df938b0785a8389a1c4becbd2efbe68133a638d2def92d92c038d59e48939b9 title: Notify Users About Unverified Email Domains collection: admin version: current locale: en-us portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/262-0-0/rn_sales_notify_users_unverified_domain.md canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_sales_notify_users_unverified_domain.htm&release=262.0.0&type=5 source_site: help.salesforce.com content_type: documentation content_hash: fe3cbea27bf4e767a2f17dd1c917b061d2970f39d6b4e688343fd3aadb0731cb description: As part of the requirement for email domain verification, Salesforce sends email notifications to users whose email addresses use an unverified domain. Users receive a notification if emails that they recently sent from Salesforce weren’t delivered or if they can’t send email from Salesforce when email domain verification is enforced. To control whether Salesforce sends one of these emails when your org gets Summer ’26, update a Deliverability setting. products: - Cross Cloud release: "262" --- # Notify Users About Unverified Email Domains As part of the requirement for email domain verification, Salesforce sends email notifications to users whose email addresses use an unverified domain. Users receive a notification if emails that they recently sent from Salesforce weren’t delivered or if they can’t send email from Salesforce when email domain verification is enforced. To control whether Salesforce sends one of these emails when your org gets Summer ’26, update a Deliverability setting. **Where:** This change applies to Lightning Experience, Salesforce Classic, and all versions of the mobile app in all editions except Salesforce Free Suite and Database.com. This change has no impact on trial orgs. **When:** Salesforce deploys this change between May 1 and May 7, 2026. If your org is on Spring ’26, affected users receive the first round of notifications during that deployment window and then receive the second round of notifications when your org receives Summer ’26. If your org is on Summer ’26, Salesforce sends the notification with patch 4, which Salesforce deploys starting on May 5, 2026. To get the version and patch of your org, go to [Trust Status](https://status.salesforce.com/), search for your My Domain name or instance, and then click the Maintenance tab. **Why:** Your internal users receive one of two notifications per sending event. Both emails instruct the user to contact their Salesforce admin. Experience Cloud site users, Salesforce Site users, and organization-wide email addresses are excluded from these notifications. If “Use a substitute email address for unverified domains” is enabled on the Deliverability page in Setup, these email notifications aren’t sent. - If the user's email address or reply-to address uses an unverified domain that's on the temporary allowlist, they receive this email. ![Email with the subject line: "Contact your Salesforce admin to verify your email domain."](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-release-notes-salesforce_release_notes-262-0-0-production-enus/e945111b-3e0a-4011-accc-d5949363bfcc/salesforce_release_notes/images/sales/example_email_allowlisted_domain.png) - If the user recently sent an email from Salesforce that wasn't delivered because of an unverified domain, they receive this email. ![Email with the subject line: "Salesforce Messages Not Delivered."](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-release-notes-salesforce_release_notes-262-0-0-production-enus/e945111b-3e0a-4011-accc-d5949363bfcc/salesforce_release_notes/images/sales/example_email_delivery_failure.png) **How:** To enable users with unverified email domains to send email from Salesforce, use a substitute email domain. See [Keep Email Flowing for Users with Unverified Domains](https://help.salesforce.com/s/articleView?id=release-notes.rn_sales_productivity_email_substitute_unverified.htm&release=262.0.0&type=5 "Enable users whose email domains you can’t verify—such as users with public email addresses, consultants, and site users—to send email from Salesforce. With your substitute email address, the user’s display name remains unchanged, but the From address uses an organization-wide email address or an email address that ends with .sfcustomeremail.com. This option also applies to system-generated emails and emails sent via shared email accounts with an unverified domain."). To stop the second round of email notifications for users with an email address or reply-to address that uses an unverified domain that's on the temporary allowlist, enable a deliverability setting. After the initial change is deployed to your org, from Setup, in the Quick Find box, enter Deliverability, and then select **Deliverability**. Then enable **Turn off user emails for temporarily allowlisted email domains**. That setting is only available when “Use a substitute email for unverified domains” is disabled. ![Option to turn of the second round of user email notifications](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-release-notes-salesforce_release_notes-262-0-0-production-enus/e945111b-3e0a-4011-accc-d5949363bfcc/salesforce_release_notes/images/sales/email_domain_verfication_user_emails.png) #### See Also - [Verify Your Email Domain Ownership](https://help.salesforce.com/s/articleView?id=release-notes.rn_sales_productivity_email_domain_verify.htm&release=262.0.0&type=5 "To avoid disruption in email sent from Salesforce, verify the domains that you own with a DomainKeys Identified Mail (DKIM) key or an authorized email domain. As part of our ongoing efforts to strengthen the security of our email services, email domain verification is now mandatory. Salesforce no longer delivers emails from unverified domains, even if the email address is verified.") - [_Knowledge Article:_ Spring ’26 Email-Sending Domain Verification Requirement](https://help.salesforce.com/s/articleView?id=005316090&type=1&language=en_US)