Email Infrastructure & Deliverability Optimization

Secure, compliant, and high-deliverability mail systems for business communication

Client Overview

A growing organization faced persistent mail delivery failures, spam flagging, and unreliable mail performance across multiple domains. The client required a stable, secure, and compliant mail infrastructure to support transactional and business-critical communication.

Challenges

• Messages landing in spam or being rejected
• Misconfigured SPF, DKIM, and DMARC records
• Unstable mail server performance and storage issues
• Lack of monitoring and visibility into mail flow
• Poor sender reputation and inconsistent authentication

Solution Delivered

• Audited complete mail infrastructure and DNS configuration
• Implemented SPF, DKIM, DMARC, and BIMI correctly
• Optimized SMTP routing and mail server performance
• Secured mail services with TLS, rate limiting, and anti-abuse controls
• Configured monitoring and alerting for mail delivery issues
• Provided best-practice guidance for ongoing sender reputation management

Technologies Used

SMTP, DNS, SPF, DKIM, DMARC, BIMI, Postfix, Exim, Zimbra, cPanel Mail, Mail Security & Monitoring

Outcome

• Significant improvement in inbox placement
• Stable and reliable mail delivery across providers
• Improved sender reputation and trust
• Reduced mail failures and user complaints
• Secure and compliant mail infrastructure