Calculating the monetary value of email deliverability involves various approaches that combine financial metrics, email performance indicators, and cost considerations. Some experts argue that deliverability's value equates to the entire email marketing budget because undelivered emails render the budget useless. Other methods focus on calculating lost revenue due to undelivered emails by measuring the impact on key performance indicators (KPIs) like open rates, click-through rates, and conversion rates. Tools and metrics from platforms like Google Postmaster Tools, Microsoft Sender Support, SparkPost, Spamhaus, and SMTP status codes can help identify deliverability issues and their impact on revenue. Additional factors include extrapolating customer value from previously inboxed domains, considering ESP support and consulting costs, and determining the value of a dedicated deliverability role. A common formula for estimating lost revenue is (volume * average order value) / recipients. Ultimately, calculating the value of deliverability involves identifying the source of deliverability problems, tracking KPIs, and understanding the long-term value of maintaining a strong domain reputation.
12 marketer opinions
Calculating the monetary value of email deliverability involves quantifying the impact of deliverability on email marketing ROI. This can be achieved by assessing lost revenue due to undelivered emails, examining the effect of deliverability on key metrics like open rates, click-through rates, and conversion rates, and comparing the cost of deliverability solutions with the revenue generated. Several approaches exist, including extrapolating customer value from previously inboxed domains, calculating revenue per email in the inbox, and deriving deliverability KPIs from standard metrics. Identifying the source of deliverability issues and understanding factors like sending reputation, authentication, and engagement are also crucial for determining value.
Marketer view
Email marketer from Mailjet Blog explains that to calculate ROI of deliverability efforts, one must calculate lost revenue due to undelivered emails (emails not reaching inbox) and compare that to the cost of deliverability solutions.
4 Feb 2025 - Mailjet Blog
Marketer view
Marketer from Email Geeks suggests calculating revenue per email in the inbox and considering factors like ESP support, consulting costs, and the impact of business practices on deliverability. They also highlight the hidden costs of employing someone versus using a consultant.
17 Apr 2025 - Email Geeks
3 expert opinions
Calculating the monetary value of email deliverability can be approached in different ways. One perspective equates the value of deliverability to the entire email marketing budget, as the budget is wasted if emails aren't delivered. Another method uses a formula involving email volume, average order value, and recipients to determine the revenue lost due to deliverability problems. A third approach emphasizes the worth of a domain's reputation, stating that a damaged reputation requires additional time and money to repair.
Expert view
Expert from Email Geeks argues that the value of deliverability is equal to the cost of the entire email marketing budget, as the entire email program is wasted if the user doesn't see the email.
23 Jun 2022 - Email Geeks
Expert view
Expert from Spamresource explains that you can value deliverability by determining the worth of your domain. "Once a domain loses its good reputation, the sender has to spend additional time and money to repair any damage."
31 Jul 2022 - Spamresource
5 technical articles
Various documentation sources emphasize the use of data and tools to calculate the monetary value of email deliverability. Google Postmaster Tools allows senders to monitor domain/IP reputation and estimate revenue loss from spam/blocked emails. Microsoft's sender support provides data to assess the impact of deliverability issues and calculate the revenue impact of deliverability tools. SparkPost highlights the use of detailed deliverability metrics (delivery rate, bounce rate, engagement) to measure campaign performance and the effect of deliverability efforts. RFC Editor provides details of SMTP status codes to understand deliverability problems. Spamhaus offers methods to measure IP/domain reputation to see the effects of deliverability issues.
Technical article
Documentation from RFC Editor details all SMTP enhanced status codes, which can provide key data points for deliverability specialist when dealing with deliverability issues. These help you to see the types of deliverability problems you have.
28 Feb 2025 - RFC-Editor
Technical article
Documentation from Microsoft responds that by using sender support, it will give you data that helps you see the impact of deliverability problems on your ability to reach your audience and lets you calculate the revenue impact from deliverability tooling.
20 Dec 2022 - Microsoft
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