pg. 2

Table of Contents

Introduction........................................ pg. 3

Purchase Behavior Metrics............. pg. 4 - 5

Mobile Metrics.................................... pg. 6 - 7

Subscriber Activity Metrics............. pg. 7 - 8

Subscriber Tenure Metrics.............. pg. 8 - 10

Standard Metrics................................ pg. 11

Recommendations............................ pg. 12

Resources............................................. pg. 13

Glossary................................................ pg. 14

pg. 3

Introduction

EXECUTIVE SUMMARY:With the holiday season upon us, marketers are more focused than ever on the value their marketing efforts bring to the table and how they are able to meet and exceed projections. To cater to marketers’ ever-growing demand for conversion metrics, this edition of Yesmail’s Email Marketing Compass report zooms in on purchase behavior data, which lends further insight into consumers’ interactions with email and their propensity to make a purchase.

KEY FINDINGS:Purchase Behavior:Marketers know their success relies on strong KPIs. However, when it comes to conversion metrics and purchase behavior, finding the right benchmarks often poses a challenge. Yesmail used After-the-Click tracking* to measure online conversion and cross referenced it with mobile data for additional insight into the way mobile affects purchase behavior. Across all industries, over 16% of sales driven by email happen on a mobile device, with 56% of those mobile sales being completed on a tablet and 44% on a smartphone. Average order value on a mobile device is almost $10 lower than that on a desktop across all industries and only a little over $2 lower for retail.

*After-the-Click tracking is Yesmail’s proprietary technology providing tracking of purchases by device-type.

Mobile:Smartphones and tablets continue to gain dominance for the consumption of marketing messages. More subscribers are responding to marketing communications on-the-go. In only the last three months, the number of email subscribers who view emails exclusively on their mobile device has grown by almost 50%, while the number of hybrid users viewing email on a combination of desktop and mobile, has decreased at the same rate.

Subscriber Activity:In Q3, the number of active subscribers across all industries increased by almost 5% quarter-over-quarter, while the average number of emails per subscriber remained essentially unchanged. This rise in active subscribers could be a result of several potential drivers, including strong summer promotions, better targeting, and an improved mobile experience. As marketers round the corner into the final stretch of the year, these three factors will remain essential for a successful holiday season.

Subscriber Tenure:In many industries, the maturity and activity level of a marketer’s database are key factors in measuring email program performance. Higher subscriber activity tends to translate into a better ROI. Since newer subscribers are generally most active, ensuring a consistent flow of new opt-ins largely contributes to high activity. On average, a little over 5% of subscribers across all industries have opted into a marketer’s program within 90 days, with 20% of those subscribers being active (opened/clicked in the last 90 days). Interestingly, over 30% of consumers who have subscribed 3 to 12 months ago have been active within the last year, pointing to a potentially longer window of opportunity for marketers to engage them.

Standard:Standard metrics like delivery, open, click, and unsubscribe rates remain key components in assessing email program performance. Moreover, they greatly contribute to identifying and putting in perspective enhanced email performance metrics, such as subscriber tenure and consumer purchase behavior. Both total and unique click rates decreased by 5% quarter-over-quarter while deliverability rates remained consistent at 97%. For insight into the divergence between the growth in subscriber activity rate and decrease in unique click rate, refer to the Standard Metrics section of the report.

This report is based on 5.4 billion emails sent out in Q3.

pg. 4

Purchase Behavior

PURCHASE BEHAVIOR METRICS:Email can be leveraged to achieve many objectives such as strengthening consumer engagement, fostering brand loyalty, establishing thought leadership, and, of course, generating revenue. Marketers who rely on email as a primary driver of revenue must consider the growing influence of mobile on their bottom lines.

• On average, across all industries, mobile revenue accounts for 15% of the total revenue generated through email, while for the retail industry, it accounts for 18%.

• Generally, 16% of all orders driven by email are completed on a mobile device. This number is 19% for the retail industry.

• Across all industries, the average order value was almost $10 less on a mobile device than on a desktop. However, this gap is considerably smaller for retail, at a little over $2.

• Tablets come out slightly ahead of smartphones as the preferred mobile purchase device with 56% of all mobile orders.

• Over 99% of all tablet purchases are completed on an iPad.

• Android continues to close the gap. In Q3, 41% of smartphone purchases came from an Android device while 59% came from an iPhone.

• Across all industries, conversion rate (number of orders divided by unique clicks) is 3.7% for desktop and 1.3% for mobile.

Mobile 16% | Desktop 84%

Number of Orders

All Industries

DevicesAll Industries

44% Orders

Smartphone

26% iPhone

56%iPad

18% AndroidPhone

0%*Android

Tablet

* Android Tablet 0.3%

56% Orders Tablet

Mobile 15% | Desktop 85%$0 $10 $20 $30 $40 $50 $60 $70 $80 $90 $100

$88.32

$78.96RevenueAll Industries

Avg. Order Value

Desktop

Mobile

pg. 5

Purchase Behavior Findings:Even though desktop revenue still outweighs mobile at a rate of almost 6-to-1, the conversion rate, defined here as number of orders over unique clicks, reflects a much closer race. The desktop-to-mobile conversion rate is less than 3-to-1 and the desktop-to-mobile average order value is almost 1-to-1, pointing to a continually closing gap between the two.

The Mobile Path-to-PurchaseFor the retail industry, average order value for desktop vs. mobile is very close ($61 vs. $59), suggesting that consumers are growing increasingly comfortable with purchasing on their mobile device.

Because a mobile device stays with the shopper throughout the day, and can be accessed on demand, a marketing email is more likely to reach mobile subscribers at the right place and time. Consequently, a mobile click can have a better chance for conversion. While desktop conversion rate is still more than double that of mobile, the narrowing gap in average order value demonstrates consumers’ increased confidence in the mobile path-to-purchase.

Additionally, an established path-to-purchase is always easier to follow; once consumers complete their first purchase on a mobile device, they are more likely to revisit that path. As per the graphic to the left, subscribers who have purchased on a mobile device are just as likely as desktop purchasers to buy again. In fact, the likelihood of next conversion may be higher for mobile shoppers because the device is generally with them at all times, so the marketer’s opportunity to present the right offer at the right time is much greater via the mobile channel.

Capitalizing on the On-the-Go ShopperLet’s put mobile shoppers in perspective – they are growing in numbers, they are equally likely to be repeat purchasers, and when they click on an email, they seem to be closer to purchasing than are desktop shoppers. Revenue per mobile click is almost double that of a desktop click, suggesting that even though emails opened on a mobile device have considerably lower click-to-open rates, mobile clicks lead to purchases more frequently than desktop clicks.

1 1 1 1 1 1 11 1 1

$7.14All Industries

Value of Mobile Click(Mobile Rev/Mobile Clicks)

Value of Desktop Click(Desktop Rev/Desktop Clicks)

$3.26All Industries

$ $59$61

Avg. order value

(retail only)

DesktopConversion Rate

(retail only)

MobileConversion Rate

(retail only)

MobileDesktop

2.8% 1.1%

Repeat Purchaser Rate

Desktop: 5.1%

Mobile: 5.0%

Purchase Behavior

pg. 6

MOBILE METRICS:Mobile is the Millennial Swiss Army Knife, so it comes as no surprise that the use of mobile devices continues to trend upwards at an impressive pace. Assuming these trends continue into Q4, busy shoppers will seek convenience when tackling their holiday shopping lists, thus giving mobile an ever-growing role in purchase decisions.

Metric Q3 Q2 % Change (all Industries) 2013 2013 Q3 vs. Q2

% Mobile Events 50% 46% 8.34%

% Mobile Open 52% 49% 7.85%

% Mobile Click 35% 32% 10.93%

% CTO Desktop 22% 23% -1.56%

% CTO Mobile 11% 11% -1.25%

% Desktop Only Users 40% 39% 2.76%

% Mobile Only Users 45% 30% 49.27%

% Hybrid Users 14% 30% -53.27%

Mobile CTO CTO Industry Open* Desktop Mobile

B2B 45.9% 17.6% 7.0% Consumer Services 56.8% 31.0% 18.7% CPG 49.3% 26.6% 10.6% Entertainment 49.8% 23.9% 10.5% Financial Services 54.8% 11.5% 2.0% Healthcare 38.8% 39.2% 17.4% Hospitality/Travel 56.9% 22.6% 9.4% Insurance 57.9% 48.3% 30.7% Marketing/Advertising 36.3% 16.2% 5.1% Publishing 40.5% 30.8% 16.3% Retail/Wholesale 55.8% 20.4% 10.7% Technology 49.7% 10.8% 3.4%

*of all email opens

• Mobile opens now account for over 52% of all email opens, an 8% growth over Q2 of 2013.

• Mobile email clicks grew by 11% in Q3 and now account for 35% of all email clicks.

• Overall, desktop and mobile click-to-open rates remained fairly consistent; desktop click-to-open rates continue to be more than double those of mobile.

• The number of subscribers who view emails on desktop and mobile devices interchangeably, without consistent preference for one over the other, dropped by more than 50% in Q3. Within the same timeframe, mobile-only email viewership grew by almost the same percentage.

*Some of Apple’s large share of mobile opens and clicks may be attributed to reporting variations between Apple and Android in images-off mode.

Mobile Findings:The Ongoing Mobile RevolutionConsumers continue to rely more and more on mobile for their daily digital activities. Over 52% of all email opens and clicks now happen on a mobile device, an impressive 8% increase quarter-over-quarter. This implies that a plateau in mobile adoption is still to come, as the rate of mobile growth has not slowed. Mobile clicks have jumped by 11% in one quarter, implying that perhaps more marketers are beginning to incorporate mobile-friendly design in their mailings.

iPhone iPad

82%of all email opens and clicks continue to happen on Apple devices*

25% of all

mobile opens and clicks

99% of opens

and clicks on a tablet

Mobile

Email Click-to-Open By Industry

pg. 7

A Shift Away from Desktop?In Q2, across all industries, 45% of active subscribers were hybrid viewers. In Q3, however, this number fell to 14%, indicating that consumers are increasingly relying on a single device. This significant shift substantiates our earlier claim: consumers are becoming increasingly comfortable with shopping on their tablets and smartphones and, as a result, don’t switch as often from mobile to desktop while on their path-to-purchase.

An additional potential factor in this shift to mobile-only email viewership is the growing adoption of tablets and their increased use as the preferred type of device at home, a role traditionally occupied by the desktop computer.

SUBSCRIBER ACTIVITY METRICS:Subscriber activity remains an important determinant of email program success. It’s an even larger factor as the holiday season goes into full swing. At this critical time, it is imperative for marketers to carefully examine their mailing volume, subscriber activity, and number of average opens and clicks in order to capitalize on this seasonal revenue opportunity.

Desktop Mobile Hybrid Industry Only Only

B2B 47.6% 50.3% 2.1% Consumer Services 36.0% 45.1% 18.9% CPG 45.6% 43.2% 11.2% Entertainment 39.8% 44.6% 15.6% Financial Services 42.7% 54.5% 2.8% Healthcare 54.6% 37.2% 8.2% Hospitality/Travel 35.1% 47.6% 17.3% Insurance 43.4% 50.7% 5.9% Marketing/Advertising 50.6% 34.1% 15.3% Publishing 45.8% 37.7% 16.5% Retail/Wholesale 36.6% 49.5% 13.9% Technology 45.4% 40.5% 14.1%

• On average, across all industries, active subscriber rate (has opened/clicked in the last 90 days) increased by 5% from Q2 to Q3 of 2013.

• Average number of opens per opener was 7, the same as Q2.

• Clicks per clicker also remained consistent at 3 over the course of the quarter.

• Marketers who sent between 3 and 7 emails per week continued to maintain the highest active subscriber rates .

0% 5% 10% 15% 20% 25%

Less than one

Between one and two

Up to three

Between three and seven

Seven or more

Active Subscriber Rate (opened/clicked in the last 90 days)

Subscriber Activity

Email Viewership Preference By Industry

Active Subscriber Rate by Number of Emails They Receive Weekly

Mobile

pg. 8

Subscriber Activity Findings:There, we said it! Higher frequency is not your enemy.In Yesmail’s Email Marketing Compass from last quarter, we identified a correlation between the number of emails marketers send per week and the percentage of active subscribers they have in their database. This correlation is further substantiated by this quarter’s data. The percentage of active subscribers for marketers who mail between 3 and 7 times a week continues to grow.

The retail industry’s Q3 data further supports this observation. The number of retail emails per active subscriber sent in Q3 increased by 6%, and the average number of active subscribers in retailers’ databases grew by 4%. Three factors that could potentially contribute to this concurrent growth are better mobile experience, better offers, and better targeting.

Interestingly, the overall number of email opens and clicks has not increased to reflect the growth in active subscribers. This could mean that active consumers, though opening and/or clicking, may be doing so less frequently in the span of a quarter, pointing to the need for more consistently engaging campaigns.

Industry Database Metrics

Subscriber Tenure

Active Avg. # Emails Avg. Opens Avg. Clicks Industry Subscribers per Opener per Opener per Clicker

B2B 1.4% 15 1 1 Consumer Services 7.2% 113 14 6 CPG 5.9% 24 4 2 Entertainment 7.4% 30 4 2 Financial Services 6.7% 13 3 2 Healthcare 16.0% 16 3 2 Hospitality/Travel 21.3% 32 6 2 Insurance 3.0% 7 2 2 Marketing/Advertising 3.4% 80 6 2 Publishing 15.2% 53 8 4 Retail/Wholesale 11.1% 59 8 3 Technology 7.3% 18 4 1

There are many contributing factors to the number of active subscribers in a marketer’s database. It’s important to assess this metric after considering segmentation strategies, database maturity, and mailing frequency. When marketers employ segmentation and targeting strategies, such as mailing only to subscribers with specific activity levels, purchase behavior, or tenure, they are consistently mailing to only a subset of their database, thus failing to harness its full potential.

SUBSCRIBER TENURE METRICS:Enhanced database metrics like subscriber activity based on subscriber tenure (time since they opted into the database) can provide additional insight into the rate at which marketers acquire new contacts. These metrics also show how engaged marketers manage to keep those subscribers once they have been in the database for a month, three months, a year, or longer.

Subscriber Activity

pg. 9

• Consumers who have subscribed most recently (within 90 days) have the highest active subscriber rate at almost 20%. Note: Active Subscriber Rate is defined as opens/clicks in the last 90 days.

• On average, 30% of consumers who have been subscribed for 3 - 12 months have opened or clicked on an email in the last 12 months.

• About 79% of subscribers have been subscribed for over a year which implies that the majority of marketers have been cultivating their email databases for years.

• In Q3, the average annual database growth was 27%.

78.6%

Across all industries, over 78% of all subscribers who have opened/clicked in the last 12 months have been subscribed for over a year. Don’t let those subscribers fall through the cracks – implement campaigns to keep them engaged!

Subscriber Tenure Findings:Putting Database in PerspectiveAs important as database metrics can be in determining email program strategy, it is imperative not to assess them in a vacuum. A large portion of mature databases contains subscribers who had joined many years ago but have either never been active or have not been active in years. Though it is sometimes beneficial to keep those records and attempt to re-engage them through late activation campaigns, many of them could have become dead or turned into spam traps. Mailing to these records can result in serious deliverability issues like excessive bulking, high bounce rates, and blacklisting which, in turn, can translate into hundreds of thousands of dollars in lost revenue.

To take full advantage of industry and individual database metrics, it is imperative that marketers maintain a clean database by detecting and removing spam traps, long-inactive or never-active records, and dead accounts. The most effective way to achieve this is by performing frequent data hygiene, incorporating real-time subscriber verification into the opt-in process, and proactively monitoring deliverability prior to each email deployment.

12 Is the New BlackSince 20% of new subscribers are active, consistent flow of recent opt-ins is undoubtedly an important factor when it comes to database activity. This is why ensuring new subscribers are properly engaged from the moment they opt into a marketer’s email program could greatly contribute to a higher long-term active subscriber rate and program ROI.

In addition, 30% of opt-ins who have been subscribed for 3 to 12 months have been active in the last year. Since these subscribers make up about 16% of the average database, it is important for marketers to develop programs that continually engage this database segment. These metrics suggest that marketers have a year to engage their subscribers and positively affect their database activity rate through timely, well-planned messaging.

27%

Avg. Database Growth

Q3

Subscriber Tenure

pg. 10

In the CPG, B2B, Insurance, and Financial Services industries, subscribers tend to opt into email programs at the time of requesting a quote, entering a sweepstakes, registering for a free trial/demo, etc. Since the purchase cycle in those industries tends to be longer, subscribers may become active much longer after they opt in.

Not surprisingly, the Hospitality/Travel industry garners the highest percentage of active subscribers and the lowest rate of inactive ones. This is most likely a result of the industry’s business model, which relies on the sense of urgency communicated through limited-time offers. The travel industry, in particular, is well known for delivering highly relevant email content based on subscribers’ search criteria and search history. Relevance is king when it comes to keeping an audience engaged.

Email Me Maybe?On average, across all industries, databases grew by more than 25% year-over-year. Email remains among the most preferred channels for brand interaction: consumers continue to opt in at consistently high rates despite the rise of social and mobile. Email shows no signs of slowing down as a relevant marketing channel that speaks directly to consumers and provides value that drives opt-ins.

Subscriber Activity by Industry

Never Last opened/clicked Last opened/clicked Last opened/clicked Industry opened/clicked within last 90 days 3-12 months ago over a year

B2B 86.3% 1.4% 3.5% 8.8% Consumer Services 78.1% 7.0% 5.2% 9.7% CPG 72.6% 5.0% 8.2% 14.2% Entertainment 61.2% 11.4% 10.4% 17.0% Financial Services 77.5% 4.4% 9.1% 9.0% Healthcare 47.5% 13.8% 15.8% 22.9% Hospitality/Travel 39.4% 33.8% 15.0% 11.8% Insurance 71.4% 3.0% 7.5% 18.1% Marketing/Advertising 78.6% 3.3% 3.2% 14.9% Publishing 58.6% 14.9% 10.6% 15.9% Retail/Wholesale 66.5% 9.6% 11.3% 12.6% Technology 75.3% 7.3% 5.9% 11.5%

Subscribed within Subscribed 3-12 Subscribed over Industry last 90 days months ago a year ago

B2B 14.8% 20.0% 65.2% Consumer Services 3.8% 11.6% 84.6% CPG 2.8% 8.7% 88.5% Entertainment 3.4% 13.8% 82.8% Financial Services 15.5% 42.6% 41.9% Healthcare 6.2% 19.5% 74.3% Hospitality/Travel 7.0% 19.6% 73.4% Insurance 8.3% 24.6% 67.1% Marketing/Advertising 5.0% 11.1% 83.9% Publishing 6.3% 23.9% 69.8% Retail/Wholesale 6.7% 22.0% 71.3% Technology 2.9% 12.5% 84.6%

Subscriber Tenure by Industry

Subscriber Tenure

pg. 11

STANDARD METRICS:Standard metrics such as delivery, open, click, and unsubscribe rates are key to assessing overall performance of a marketer’s email program and identifying areas of improvement that may require additional program components.

Standard Findings:Addressing the Shortening Consumer Attention SpanA few factors can be at play for the interesting contrast between the lower click rates and fairly consistent open rates registered in Q3 of 2013.

One potential reason for this disparity could be a lack of relevant, personalized content to compel the consumer to respond to a call-to-action. Another reason could be that some marketers’ emails are not optimized for mobile, which leads to subscribers opening, but not clicking through. When email creative is not optimized for the small screen, the calls-to-action are often not easily identifiable and clickable when an email is viewed on a mobile device.

In a similar fashion, the disparity between growing active subscriber rates and unchanging open rates could be a result of the same factors. While more subscribers are opening, thus raising the overall active rate, each subscriber is opening fewer messages (perhaps due to lack of personalized content and mobile-optimization), which accounts for a consistent, not increasing open rate, quarter-over-quarter.

*Yesmail does not count multiple opens and/or clicks as part of an email’s open rate. Open rate is calculated solely based on unique opens.

• Overall delivery rate remained consistent at over 97%.

• Overall open rate* remained consistent at 15% quarter-over-quarter.

• Total and Unique click rates decreased by about 5%. *Yesmail does not count multiple opens and/or clicks as part of an email’s open rate. Open rate is calculated solely based on unique opens.

Delivery Bounce Open Unique Total Click to Unsubscribe Industry Rate Rate Rate* Click Rate Click Rate Open Rate Rate

B2B 72.2% 27.8% 13.7% 1.2% 1.7% 8.4% 0.5%

Consumer Services 97.4% 2.6% 12.9% 2.2% 3.1% 17.4% 0.0%

CPG 97.7% 2.3% 18.0% 2.2% 3.4% 12.2% 0.1%

Entertainment 95.6% 4.4% 15.7% 1.7% 2.7% 10.6% 0.1%

Financial Services 93.0% 7.0% 21.8% 0.8% 1.4% 3.8% 0.1%

Healthcare 90.3% 9.7% 17.9% 3.8% 5.5% 21.0% 0.1%

Hospitality/Travel 98.0% 2.0% 17.7% 2.0% 2.7% 11.1% 0.0%

Insurance 97.5% 2.5% 27.0% 7.3% 10.3% 27.1% 0.3%

Marketing/Advertising 88.2% 11.8% 8.7% 0.7% 1.1% 8.4% 0.1%

Publishing 96.7% 3.3% 16.1% 3.0% 4.3% 18.3% 0.0%

Retail/Wholesale 97.8% 2.2% 13.5% 1.5% 2.0% 11.2% 0.1%

Technology 98.8% 1.2% 23.0% 1.2% 1.7% 5.0% 0.1%

Standard

pg. 12

RECOMMENDATIONS:Purchase Behavior: • Deploy timely communications adapted for mobile viewership in order to capitalize on the on-the-go shopper who values convenience first and foremost.

• Develop strategies to increase mobile clicks since completing a call-to-action on a mobile could bring shoppers closer to opting for the mobile path-to-purchase.

Subscriber Activity and Subscriber Tenure: • Since almost 1/3 of subscribers who have opted into a database 3-12 months ago remain active within a year, marketers should develop early and mid-activation campaigns to engage those subscribers consistently throughout their first year in the database.

• Determine the optimal email frequency through testing. Depending on the industry, sending 3 to 7 emails a week may be a good start in establishing what works best.

• Perform pre-flight testing before each email deployment to determine inbox placement for emails intended for different subscriber segments.

Mobile: • Update email templates to feature scalable and responsive design, especially as users seem to shift from desktop to tablet as their primary devices not only on-the-go, but also at home.

• Carry out creative rendering tests prior to campaign deployment to ensure the email renders correctly in all web clients and environments.

• Optimize websites for mobile, especially around the holidays when ecommerce is booming and it is the right time to promote the mobile path-to-purchase for convenience-driven shoppers.

Standard: • Use quarter-over-quarter and year-over-year standard metrics to assess overall program performance and identify trends, areas of opportunity, and performance gaps (e.g. subscribers opening but not clicking).

Recommendations

pg. 13

WHY STOP HERE?Yesmail Interactive is dedicated to helping brands remain on top of the changing digital marketing landscape by providing proprietary research on industry-defining trends and actionable recommendations on how marketers can improve their programs and achieve higher ROI. But don’t believe what we have to say, check out these resources to learn how to get the most out of your marketing efforts.

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Resources

pg. 14

GLOSSARY:Purchase Behavior: % Desktop Revenue = $ Desktop Revenue/$ Total Revenue

% Mobile Revenue = $ Mobile Revenue/$ Total Revenue

% Desktop Orders = Number of Desktop Orders/Total Number of Orders

% Mobile Orders = Number of Mobile Orders/Total Number of Orders

Desktop Conversion Rate = Number of Desktop Orders/Number of Clicks on Desktop

Mobile Conversion Rate = Number of Mobile Orders/Number of Clicks on Mobile

Repeat Purchaser Rate Desktop = (Number of Desktop Orders-Number of Desktop Purchasers)/Number of Desktop Purchasers

Repeat Purchaser Rate Mobile = (Number of Mobile Orders-Number of Mobile Purchasers)/Number of Mobile Purchasers

Desktop Avg Order Value = $ Desktop Revenue/Number of Desktop Orders

Mobile Avg Order Value = $ Mobile Revenue/Number of Mobile Orders

% Orders Smartphone = Number of Smartphone Orders/Number of Mobile Orders

% Orders Tablet = Number of Tablet Orders/Number of Mobile Orders

Mobile: % Mobile Opens = Mobile Opens/Total Opens

% CTO Desktop = Unique Clicked Desktop/Opened Desktop

% CTO Mobile = Unique Clicked Mobile/Opened Mobile

% Desktop Only = Proportion of email viewers who only used desktop to interact with email

% Mobile Only = Proportion of email viewers who only used mobile to interact with email

% Hybrid = Proportion of email viewers who switched between mobile and desktop to interact with email

Subscriber Activity: % Mailable Database = Total Mailable Users/Total Users

% Active Subscribers = Proportion of database subscribers with opens clicks in the last 90 days

Avg # Emails per Opener = Number of emails an active subscriber received in the last 90 days

Opens per Opener = Number of opens per active subscriber in the last 90 days

Clicks per Clicker = Number of clicks per active subscriber in the last 90 days

Standard: Open Rate = Opened/Delivered

Total Click Rate = Total Clicks/Delivered

Click-to-Open Rate = Unique Clicks/Opened

Unsubscribe Rate = Unsubscribe/Delivered

Glossary

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