Feature Request: Customizable DNS Records (DKIM Selector, MAIL FROM, Tracking Domains)

[amanjuman]

Problem

Currently, when adding a domain in Usesend, DNS records are automatically generated with fixed naming conventions:

• DKIM selector: usesend._domainkey
• MAIL FROM: mail.<domain>

This creates limitations for users managing multiple domains, especially when integrating with providers like Amazon SES.

Why This Matters

For users operating multiple domains (10+), the current setup leads to:

1. DNS Clutter

• Each domain requires unique DKIM selectors and MAIL FROM entries
• Harder to standardize and manage across domains

2. Lack of Reusability

• Cannot reuse DKIM selectors across providers or domains
• Cannot align with existing SES configurations

3. Deliverability Concerns

• Default/shared tracking domains may negatively impact reputation
• Custom tracking domains are often required for better inbox placement

Proposed Features

1. Custom DKIM Selector & Key

Allow users to define:

• DKIM selector (e.g., default, s1, mailer)
• Option to import existing DKIM private key

Example:

selector: default
record: default._domainkey.example.com

Benefits:

• Reuse across multiple domains
• Align with SES or existing infrastructure
• Cleaner DNS structure

2. Custom MAIL FROM Domain

Allow overriding default mail.<domain>

Example:

MAIL FROM: bounce.example.com

Benefits:

• Use a consistent MAIL FROM pattern across all domains
• Easier SES verification and scaling

3. Custom Tracking Domains (Click & Open)

Allow custom domains such as:

click.example.com
open.example.com

Instead of default/shared tracking domains.

Benefits:

• Improves deliverability (avoids shared-domain reputation issues)
• Better branding and trust

4. Template-Based DNS Configuration (Optional)

Allow defining reusable templates:

DKIM selector: default
MAIL FROM: bounce.{domain}
Tracking: track.{domain}

Benefits:

• Apply consistent configuration across all domains
• Saves time for bulk onboarding

Expected Outcome

• Cleaner DNS management
• Better compatibility with SES and other providers
• Improved deliverability
• Scalable multi-domain setup

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This feature would significantly improve Usesend for advanced users running multi-domain or production email systems.
Happy to help test or contribute if needed.