chore/SRE-583 Deprecate usage of Auth-Email Header

[bitwarden-charlie]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/SRE-583

📔 Objective

Deprecate usage of Auth-Email Header

📸 Screenshots

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Checkmarx One – Scan Summary & Details – 72825bf7-aeea-4936-964d-853bb5ab860a

New Issues (1)

Checkmarx found the following issues in this Pull Request

Severity	Issue	Source File / Package	Checkmarx Insight
	SSL_Verification_Bypass	/src/Core/Services/Implementations/MailKitSmtpMailDeliveryService.cs: 73	details /src/Core/Services/Implementations/MailKitSmtpMailDeliveryService.cs relies HTTPS requests, in SendEmailAsync. The ServerCertificateValidationCallb... ID: %2BW1e%2BIF8kfVWMXgFu59dGPq6MAI%3D Attack Vector

Fixed Issues (14)

Great job! The following issues were fixed in this Pull Request

Severity	Issue	Source File / Package
	CSRF	/src/Api/AdminConsole/Controllers/OrganizationIntegrationConfigurationController.cs: 19
	CSRF	/src/Api/AdminConsole/Controllers/OrganizationIntegrationConfigurationController.cs: 78
	CSRF	/src/Api/AdminConsole/Controllers/OrganizationIntegrationController.cs: 20
	CSRF	/src/Api/AdminConsole/Controllers/SlackIntegrationController.cs: 44
	CSRF	/src/Api/AdminConsole/Controllers/OrganizationIntegrationController.cs: 51
	CSRF	/src/Admin/Billing/Controllers/BusinessUnitConversionController.cs: 70
	CSRF	/src/Api/Billing/Controllers/AccountsController.cs: 142
	CSRF	/src/Api/KeyManagement/Controllers/AccountsKeyManagementController.cs: 97
	CSRF	/src/Api/KeyManagement/Controllers/AccountsKeyManagementController.cs: 97
	CSRF	/src/Api/AdminConsole/Controllers/GroupsController.cs: 164
	CSRF	/src/Api/AdminConsole/Public/Controllers/GroupsController.cs: 133
	CSRF	/bitwarden_license/src/Scim/Controllers/v2/GroupsController.cs: 96
	CSRF	/bitwarden_license/src/Scim/Controllers/v2/GroupsController.cs: 86
	SSL_Verification_Bypass	/src/Core/Services/Implementations/MailKitSmtpMailDeliveryService.cs: 87