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Sender address requirements and best practices

To use a sender address in Sendigram, it must meet the following criteria:

  • Valid domain: The email must belong to a domain you own or control.
  • Verified domain: The sending domain must be added and verified in Account Settings → Domain settings.
  • Active mailbox: The address should be a working inbox that can receive replies (avoid no-reply if possible).
  • Consistent use: The address should remain the same across campaigns to build recognition and trust.
  • No free mail services: Avoid using free domains (like Gmail, Yahoo, Hotmail) — some providers may block or downgrade deliverability.

2. Recommended Formats

  • Use recognizable names and keep it professional:
    • newsletter@yourcompany.com
    • updates@brand.com
    • support@service.com
  • Avoid generic or suspicious formats:
    • ❌ no-reply@yourcompany.com (less personal, discourages engagement).
    • ❌ marketing123@randomdomain.net (looks untrustworthy).

3. Best Practices for Deliverability

  • Match your domain: The sender address should use the same domain as your website (e.g., yourcompany.com).
  • Enable authentication: Ensure SPF, DKIM, and DMARC records are configured for your domain.
  • Use subdomains: For bulk marketing, consider a subdomain like news.yourcompany.com to protect your main domain reputation.
  • Encourage replies: A real, monitored inbox increases trust and helps reduce spam complaints.
  • Stay consistent: Avoid changing sender addresses frequently — consistency builds recognition.

4. Monitoring Sender Reputation

  • Track open and click rates — drops may indicate sender trust issues.
  • Watch spam complaints and bounce rates in Sendigram analytics.
  • If reputation declines, review your sender address practices and authentication setup.
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