chore: add DKIM error handling email to cal.ai

[DexterStorey]

What does this PR do?

Handles dkim verification failure with a specific email to the user.

Fixes # (issue)

Requirement/Documentation

• If there is a requirement document, please, share it here.
• If there is ab UI/UX design document, please, share it here.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Chore (refactoring code, technical debt, workflow improvements)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Tests (Unit/Integration/E2E or any other test)
• This change requires a documentation update

How should this be tested?

• Are there environment variables that should be set?
• What are the minimal test data to have?
• What is expected (happy path) to have (input and output)?
• Any other important info that could help to test that PR

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

Checklist

• I haven't read the contributing guide
• My code doesn't follow the style guidelines of this project
• I haven't commented my code, particularly in hard-to-understand areas
• I haven't checked if my PR needs changes to the documentation
• I haven't checked if my changes generate no new warnings
• I haven't added tests that prove my fix is effective or that my feature works
• I haven't checked if new and existing unit tests pass locally with my changes

[vercel]

@DexterStorey is attempting to deploy a commit to the cal Team on Vercel.

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[github-actions]

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[github-actions]

📦 Next.js Bundle Analysis for @calcom/web

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌

[github-actions]

This PR is being marked as stale due to inactivity.

[github-actions]

Hey there, there is a merge conflict, can you take a look?

[github-actions]

This PR is being marked as stale due to inactivity.

[keithwillcode]

@DexterStorey Is this something we should still do?

[DexterStorey]

Hi @keithwillcode I don't think this is necessary. If there are elevated issues resulting from DKIM we can re-open, but this seems to be rare!

Cheers,