Start by looking around
These files are prepared. You do not need to create a project, buy a service or write code before exploring. Open this course folder in VS Code when you want optional app practice. The files are also readable in an ordinary browser or text editor.
This folder belongs under courses/business-email-and-domain-trust in the Academy download. Keep it beside the other course folders and the shared guidance.
Your prepared files
- mail-service-map.md
- ownership-and-access.md
- sender-inventory.md
- provider-notes.md
- policy-review.md
- sample-report-summary.md
- transition-plan.md
- verification-summary.md
- owner-summary.md
Markdown files are readable planning notes. The HTML examples include their full CSS and JavaScript inside the page.
Try one decision here
What is a useful starting point before changing mail authentication?
Choose either response to read its explanation. This activity changes only the feedback on this page.
Official help when you need it
- Google Workspace: where incoming mail is delivered
- Microsoft: how email authentication fits together
- Google Workspace: individual accounts and delegated access
- Cloudflare: separate email DNS records
- Google Workspace: SPF and approved senders
- Microsoft: SPF identifies authorized sending sources
- Google Workspace: DKIM message signatures
- Microsoft: DKIM and provider-specific public records
Official VS Code download · The installer is not included. Use the current publisher download appropriate for your computer.