CONSULTING > EMAIL DELIVERABILITY AUDIT
Improve Inbox Rates with a Professional Deliverability Audit
At Postmastery, our Email Deliverability Audit helps organizations like yours ensure compliance with mailbox provider standards, minimize risks of blacklisting, and improve email engagement and ROI.
For ESPs & MTA users
What’s included in the Deliverability Audit?
We cover all the critical areas to ensure your email program is optimized for maximum deliverability:
Technical Configuration & Compliance
- DNS, rDNS, HELO/EHLO setup checks
- TLS and email server connection security
- Mail Transfer Agent (MTA) configuration aligned with ISP requirements
Authentication Analysis & Enforcement
- SPF setup and alignment
- DKIM keys configuration & rotation
- DMARC policy enforcement and monitoring
SMTP Traffic, Log & Header Review
- Analysis of delivery logs to detect throttling, rejections, delays
- Inspection of email headers to find misconfigurations or inconsistencies
- Monitoring bounce and complaint patterns
Reputation & Blacklist Risk Assessment
- IP and domain reputation checks across providers (Gmail, Yahoo, Outlook, etc.)
- Identification of blacklist exposure
- Recommendations for list hygiene, suppression, and maintenance
IP & Domain Blacklist or Deliverability Issues
Why do you need an Email Deliverability Audit?
Even reliable senders often face deliverability issues. Key common problems include:
- Missing or weak authentication
- Misconfigured DNS or mail infrastructure
- Poor list hygiene leading to spam traps
- Poor IP reputation or domain reputation
- Non-compliance with mailbox provider policies
A Deliverability Audit helps you catch these issues early, reduce bounce rates, avoid spam filters, and ensure inbox delivery — which leads to higher open & click rates and better ROI.
Increase your performance and ROI
Key benefits of a Deliverability Audit
- Stronger compliance with Mailbox Providers (Gmail, Microsoft, Yahoo, etc.) and known Best Practices (M3AAWG, SCA, Signal Spam, etc.)
- Reduced risk of blacklistings & blocks
- Optimized Authentication & Email Security
- Higher deliverability & inbox placement
- Improved engagement (opens, clicks) & ROI
- Greater confidence in your email infrastructure
For ESPs & On-Premise MTA users
Who Benefits Most?
Our service is ideal for:
- Organizations with their own MTA Infrastructure: To validate or tune configuration for peak deliverability.
- ESP Customers: To ensure your ESP or third-party platform aligns with best practices.
- Marketing & E-commerce Teams: That rely heavily on email for revenue and customer engagement.
- Transactional Email Senders: For critical notifications, purchase confirmations, password resets, etc.
- Brands Worried About Reputational Risks: To protect domain reputation and reduce blacklist exposure.
No pain just gain
How our Deliverability Audit works
- Kick-off Meeting : We define sending domains, IPs, objectives, and what success looks like.
- In-depth analysis :Using our tools — Delivery Analytics, Reputation Monitor, Email Audit and DMARC Reports — we dig into your logs, DNS, headers, sending behavior.
- Audit Report & Prioritized Recommendations :Detailed findings, prioritized action items, with roadmap for improvement.
- Follow-up Recommendations Session : We walk you through the report, clarify steps, tools, and set next-actions.
Expert Team & Powerful Tools
Why choose Postmastery?
- We take a compliance-first, evidence-based approach
- We use specialized tools to monitor reputation, logs, and header integrity
- Trusted by infrastructure owners, ESPs, and enterprise senders globally
- Fully transparent & prioritized recommendations — so you know what to fix first
- Led by well-known deliverability experts active in the email industry
- Deep expertise in On-Premise MTA 1 ESPs optimizations for peak performance
- Worldwide service with clients across all major markets
Request your Email Deliverability Audit today
Do you want to meet mailbox provider requirements, reduce blacklist risks, and improve inbox placement? Request an Email Deliverability Audit today and let Postmastery guide you with expert deliverability optimization, including SMTP traffic analysis, email header inspection, and reputation management.