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Email metrics
- 1. { Email Marketing
Metrics Explained {
Copyright © 2011 iContact Corp. | www.iContact.com/Greenpapers
- 2. { Email Marketing Metrics Explained }
How do you determine the strength of your email marketing program?
Are you focusing on the most important email marketing metrics?
What are you comparing your current key performance indicators (KPIs) against in order to measure success?
Email Marketing Metrics Explained tackles these questions and leaves you with the following takeaways:
• You will learn how each metric is calculated and the importance of each to your program.
• You will learn how to use KPIs to assess your program’s strengths and weaknesses, overall
health, and impact on your business.
• You will learn how to set reasonable expectations and goals for your email marketing program on
the basis of where your program stands today.
What are the most important email marketing metrics? According to MarketingSherpa, “The most commonly
tracked email metrics continue to be clickthrough, open and delivery rates.”1
Email Marketing Metrics Tracked by Percentage of Organizations
Clickthrough rate 92%
Open rate 90%
Delivery rate 81%
Clicks per link in email 51%
Clicks per email 51%
Post-click conversion rate 44%
Response by list segment 36%
Revenue per email 33%
Social sharing rate 18%
Source: MarketingSherpa Email Marketing Benchmark Survey
Methodology: Fielded Sep 2010, N = 1,115
1
Jeff Rice, “New Chart: Top Tracked Email Metrics,” Marketing Sherpa, last modified December 14, 2010,
http://www.marketingsherpa.com/article.php?ident=31781.
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- 3. { Email Marketing Metrics Explained }
Focus on Five Key Email Metrics
Why Your Clickthrough Rate Matters More
Your campaign’s clickthrough rate (CTR) is one of the most
Clickthrough Rate (CTR)
important email metrics to measure. Your CTR shows your The number of times a link is clicked in a
overall engagement level with your subscribers and how message divided by the number of delivered
relevant they deem your content. A strong CTR equals a strong messages. For example, if a message is sent to
four subscribers and one subscriber clicks on
engagement ratio, which is a key metric monitored by multiple
the message twice, the resulting CTR for that
Internet service providers like Hotmail and Gmail. message is 25% (1 unique click / 4 delivered
emails = 25%).
Your CTR carries more weight than your open rate because
Unique Clicks / Delivered Emails = CTR
multiple email clients detect and define an “open” differently.
MarketingSherpa notes that “the open rate, once the
predominant metric of email marketing, has been surpassed
by the slightly more definitive clickthrough rate.”2
Why Your Open Rate Matters Less
Your open rate alone should not determine the success of a
Open Rate
message. Although it is important to monitor your open rate The number of times a message is opened
over time for spikes, it is not the ultimate metric due to the divided by the number of delivered messages.
“fudge factor” around capturing and detecting an open. Mark
Unique Opens / Delivered Emails = Open Rate
Brownlow of Email Marketing Reports tackles this very issue in
his blog entry “What Do Email Open Rates Mean?”
When your email service sends out your email, they include a piece of code in each one requesting the
display of a tiny, transparent (i.e. invisible to the viewer) tracking image.
When the recipient’s browser or email reading software (an email client like Outlook Express) tries to
display the email on a screen, it reads that piece of code and sends out a request to the email service
for the tracking image.
2
Ibid.
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- 4. { Email Marketing Metrics Explained }
When the service receives the request, it records it and uses it as an indication that the recipient has
“opened” the email.3
Unfortunately this process for tracking an open creates the following three issues, which Brownlow captures perfectly:
1. An open “actually just means the recipient’s software or browser displayed the email such that the
tracking image was requested. It says nothing about whether the recipient actually read or engaged
with your email in any way.”
2. “The tracking image can be activated without the recipient ever actually seeing the email at all. Many
email clients have a preview function, where part of the email is displayed below or to the side of
the list of emails in your inbox. . . . So some of those recorded opens are from recipients who never
even looked at your email.”
3. “If your recipient gets text-only emails or has an email client that only displays text versions of emails
(like many mobile devices), then the image code is ignored and never requested. No image request
means no record of an open. So your recorded email open rate misses out on those people.”
Why Your Delivery Rate Is Not a Given
Your delivery rate can vary depending on your email list’s overall
Delivery Rate
health. If your list has a large percentage of hard bounces The total number of messages sent minus hard
because of data entry errors, or if you’re sending to a stale list or soft bounces divided by the total number of
(i.e., a list that is older than six months and that has not been messages sent.
emailed before), then your delivery rate may suffer. Over time,
Bounces can either be a hard bounce, a
by growing your list organically and sending to the list on a permanent delivery failure (i.e., the email address
frequent basis, you will clean out the majority of hard bounces is misspelled or doesn’t exist), or a soft bounce,
and garner a much higher delivery rate. a temporary delivery failure (i.e., the subscriber’s
mailbox is full).
(Sent Emails - Bounced Emails) / Sent
Emails = Delivery Rate
3
Mark Brownlow, “What Do Email Open Rates Mean?” Email Marketing Reports (blog), August 2006,
http://www.email-marketing-reports.com/email-open-rates/meaning.htm.
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- 5. { Email Marketing Metrics Explained }
How to Capture and Track Your Conversion Rate
You can use analytics programs, such as Google Analytics, to Conversion Rate
measure your email conversions. These products enable you The total number of conversions divided by the
to capture B2B webform or survey conversions and B2C retail total number of messages sent.
conversions. Taking the time to set up conversion tracking
Conversions / Sent Emails = Conversion Rate
strings and email tracking codes is well worth the effort. Karen
Bannan notes as much in her BtoB article featuring input from
Mark Feldman, VP of marketing at NetProspex, a sales and
marketing database company:
The majority of email marketers look to traditional metrics such as open and click-
through rates to help shape campaigns and strategies. While this is smart, Feldman
said, marketers must also follow conversion rates from leads into sales. “This metric
shows you how effectively leads are being processed by the sales team,” he said. “Sales
pipeline metrics help you get a picture of your overall ROI, as well as the effectiveness
of your targeting.”4
One thing to remember, though, is that not all conversions are trackable. If your email sends a customer to
your retail storefront, for example, you won’t be able to track that the lead came from email unless you offer
an incentive such as a coupon to redeem.
Although measuring conversion from email marketing is simpler than for many other forms of marketing, it
is still not a perfect measure of return on investment (ROI). MarketingSherpa noted this when it posed the
following question in its 2011 Email Marketing Benchmark Survey: Does your organization have a method
for quantifying ROI from email marketing? Of the respondents, 59% said they did not have a method of
quantifying ROI, and 41% reported that they did have a method in place.5
Unfortunately, 59% of marketers are unable to capture their email marketing program’s ROI. If you fall in this
59%, begin by tracking your program’s return on ad spend (ROAS).
4
Karen J. Bannan, “Tracking the Right Email Metrics,” BtoB, May 12, 2011,
http://www.btobonline.com/apps/pbcs.dll/article?AID=/20110512/EMAIL14/305129995/0/FREE&template=printart.
5
Adam T. Sutton, “Email Marketing: Show Me the ROI,” MarketingSherpa Blog, February 3, 2011,
http://sherpablog.marketingsherpa.com/email-marketing/email-marketing-show-me-roi/.
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- 6. { Email Marketing Metrics Explained }
Why You Should Calculate Return on Ad Spend
By tracking your ROAS, you will learn the impact and profitability
Return on Ad Spend (ROAS)
of your email efforts. The formula for calculating ROAS is very Your total email sales divided by the total
simple as long as you know your total sales and your total email email cost.
costs for each campaign. You can capture your total sales by
Total Email Sales / Total Email Cost =
using a free analytics tool like Google Analytics. You only need to
Return on Ad Spend
invest a little time and effort in order to determine how impactful
your email marketing program is on the bottom line.
Email Metric Benchmarks for Measuring Performance
According to a survey released by the Direct Marketing Association, “marketing e-mails using a house list are
seeing an average open rate of nearly 20%, a click-through rate of 6.64% and a conversation rate of 1.73%.”6
These metrics represent the average across thousands of uniquely different email marketing programs.
To help you determine the overall health of your email marketing program, iContact has created key email
metric benchmarks for programs at several levels of maturity. Keep in mind that more mature programs will
have stronger KPIs than programs in their infancies.
For example, metrics for a program that has only emailed a list once will differ from those of a more seasoned
program that has been sending emails to a list every two weeks for the past two years.
6
Frank Washkuch, “Marketing E-mails See Open Rate of Nearly 20%, Says DMA Survey,” Direct Marketing News, June 15, 2010,
http://www.dmnews.com/marketing-e-mails-see-open-rate-of-nearly-20-says-dma-survey/article/172573/?utm_
source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+DMNewsHome+%28DMNews+Home%29.
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- 7. { Email Marketing Metrics Explained }
Email Marketing Performance Benchmarks
Key Metric Onboarding Infrequent Sending Frequent Sending
Clickthrough Rate 3.4% & Lower 3.5% to 6.2% 6.3% & Higher
Open Rate 12.5% & Lower 12.6% to 20.5% 20.6% & Higher
Delivery Rate 84% & Lower 85% to 95% 96% & Higher
Conversion Rate 1.09% & Lower 1.10% to 1.64% 1.65% & Higher
ROAS 1,250% & Lower 1,251% to 3,999% 4,000% & Higher
You can determine which benchmarks apply to your program depending on its maturity.
Onboarding Benchmarks
Onboarding benchmarks apply to you if you are new to your email marketing provider or new to email
marketing altogether (i.e., have never sent an email out of your email marketing provider before or have just
started sending in the last month).
Any program going through an onboarding process will have a much higher bounce rate as well as a higher
overall unsubscribe rate. Therefore, these metrics will deflate your delivery rate for the first handful of sends
to your list.
If you are sending to subscribers who joined longer than six months ago and who have yet to receive a
message, they may not recognize your name in your message’s “from” field. Consequently, your open rate,
CTR, conversion rate, and ROAS will be lower until subscribers become familiar with your brand in their inboxes.
Infrequent Sending Benchmarks
Infrequent sending benchmarks apply to you if you send once every two or three months or do not send an
email during certain seasons.
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- 8. { Email Marketing Metrics Explained }
By sending infrequently, your list churn (i.e., the loss of subscribers because of hard bounces, unsubscribes,
and complaints) will always be higher than the churn for programs that send frequently. Therefore, your
delivery rate will be weaker.
Brand recognition within your subscribers’ inboxes will also suffer because contacts may forget about your
program and the value you provide. By setting a steady monthly sending cadence, you capture stronger
engagement levels and increase your open rate, CTR, conversion rate, and ROAS.
Frequent Sending Benchmarks
Frequent sending benchmarks apply to you if you have a more mature email marketing program (i.e., you
consistently send emails every two weeks to your list).
To achieve strong KPIs, you will need to maintain your overall cadence strategy. If you touch your email list
at least once every two weeks, your list will become pristine, and your emails will not bounce. Your delivery
rate will also be strong and stable.
What You Can Do
In order to push your open rates, CTRs, conversion rates, and ROAS higher, you need to optimize your email
marketing program on a routine basis to ensure that you are sending relevant content within robust email
templates. Monitor your metrics and set aggressive (but realistic) goals for improving your program.
About iContact
iContact is a purpose-driven company based in Raleigh, NC, working to make email marketing and social
marketing easy so that small and midsized companies and causes can grow and succeed. Founded in 2003,
iContact has more than 300 employees and more than 700,000 users of its leading email marketing software.
iContact also provides the event marketing platform Ettend. As a B Corporation, iContact utilizes the 4-1’s
Corporate Social Responsibility Model, donating 1% of payroll, 1% of employee time to community volunteering,
1% of equity, and 1% of product to its local and global community as part of its social mission. iContact works
hard to maintain a fun, creative, energetic, challenging, and community-oriented company culture.
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