Advanced Email Validation for Subscription Form

[divysaxena24]

Description

This PR adds server-side email validation

Changes included:

• Adds a CHECK constraint using regex for valid email format ([email protected]).
• Optional CHECK constraint to reject disposable emails (mailinator.com, tempmail.com, etc.).
• Ensures all emails are unique and not null.
• Provides a centralized, database-level validation that complements front-end checks.

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Type of Change

• New Feature
• Bug Fix
• Documentation Update
• Refactor

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Motivation / Use Case

• Current validation relies on front-end checks only (JavaScript/HTML).
• Server-side validation ensures data integrity and prevents bypassing the frontend.
• Provides consistent validation rules for all clients submitting emails.
• Enhances security and reliability of the subscription system.

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Explanation:

• email_format_check: Ensures the email matches a proper pattern.
• no_disposable_email: Rejects known disposable email domains.
• UNIQUE: Prevents duplicate email entries.
• NOT NULL: Ensures an email is always provided.

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Screenshots / Demo

Checklist

• Code compiles correctly
• Follows repository coding conventions
• Contributing Guidelines read

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Fixes issue #540

[vercel]

@divysaxena24 is attempting to deploy a commit to the recode Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

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[sanjay-kv]

@divysaxena24 can you fix the conflicts please. may be pull and push will do here.

[Adez017]

Any Updates on this @divysaxena24

[github-actions]

Synced data from Linked Issues

Labels:

• enhancement
• gssoc25
• level 2

Assignees:

• divysaxena24

Milestones:

• recode:launch 3.0

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
recode-website	Error			Oct 3, 2025 5:25am