Employee churn rates underscore the volatile nature of e-mail contact databases.

Most marketers are well-familiar with the challenges of e-mail list maintenance. In the business-to-business world in particular, e-mail databases can become pretty stale pretty quickly, due to the horizontal and vertical movement of employees inside organizations as well as jumping to other companies.

Whether they’re moving up or out, often they’re no longer good prospects.

Based on my experience, my personal rule of thumb has been that approximately one-fifth of any given list of B-to-B names will “churn” within a 12-month period, meaning that any such contact database will rapidly lose its effectiveness unless assiduously maintained.

And now we have a new report from Salesforce Research that confirms this basic rule of thumb.

Salesforce looked to LinkedIn, exploring this social platform’s data from more than 7 million records over a 48-month period to gauge the lifecycle of the typical “persona.”

The research considered not only changes that result in the deactivation of an e-mail address, but also circumstances where individuals may keep the same e-mail address but still should be removed as a target because a horizontal or vertical change within the same organization places them in a different employee function.

What the new research found was that the average annual B-to-B churn rate for such “personas” is ~17%.

That figure turns out to be fairly close to my basic rule of thumb based on years of observing not only e-mail contact databases, but also the postal mail databases we’ve worked with in my company or with our clients.

Beyond the broad average, there are some small but meaningful differences in the B-to-B churn rate depending on the product focus and on the type of employee function.

In high-tech fields, the average annual churn rate is higher than the average. And it’s across the board, too:  23% churn in marketing … 20% in sales and in HR personnel … 19% in IT, and 18% in finance.

People employed in the retail and consumer products industries also clock in at or higher than the overall churn average, but the annual churn rate is a tad lower in the medical and transportation fields.

Another interesting finding from the Salesforce evaluation is that annual churn rates are somewhat lower than the average for personnel at director levels and higher in companies (around 15%). For managers, the churn rate matches the overall average, while “worker bees” have a higher churn rate averaging around 20%.

Considering the critical importance of e-mail marketing efforts in the B-to-B environment, Salesforce’s finding that it takes only 4.2 years for an e-mail database to churn completely means that the value of these marketing assets will decline dramatically unless cultivated and maintained on an ongoing basis.

The volatile nature of e-mail contact databases also helps explain why so many companies have adopted a multi-channel approach to marketing, including interacting on social media platforms. Yes, those platforms do have their place in the B-to-B world …

The full report of the Salesforce findings can be downloaded here.

In copywriting, it’s the KISS approach on steroids today.

… and it means “Keep It Short, Stupid” as much as it does “Keep It Simple, Stupid.”

Regardless of the era, most successful copywriters and ad specialists have always known that short copy is generally better-read than long.

And now, as smaller screens essentially take over the digital world, the days of copious copy flowing across a generous preview pane area are gone.

More fundamentally, people don’t have the screen size – let along the patience – to wade through long copy. These days, the “sweet spot” in copy runs between 50 and 150 words.

Speaking of which … when it comes to e-mail subject lines, the ideal length keeps getting shorter and shorter. Research performed by SendGrid suggests that it’s now down to an average length of about seven words for the subject line.

And the subject lines that get the best engagement levels are a mere three or four words.

So it’s KISS on steroids: keeping it short as well as simple.

Note: The article copy above comes in at under 150 words …!

E-Mail Marketing: On the Subject of Subject Lines …

emWith groaning inboxes, is it any wonder why so many e-mail messages get ignored by their recipients?

Indeed, with it costing so little to send an e-mail – especially when compared to the “bad old days” of postal mail – it’s too irresistible for marketers and others to deploy hundreds or thousands of e-mail missives at a pop, even if the resulting engagement levels are so paltry.

And therein lies the problem: The “value” of such e-mails diminish to the point where recipients have a very good idea of their (lack of) worthiness without needing to open them.

In such an environment, what’s the the likelihood of something important inadvertently slipping through the cracks? Not so great.  And so users go on their merry way, hitting the delete key with abandon.

Faced with these realities, anything senders can do to improve the odds of their e-mails being opened is worth considering.

As it turns out, some of those odds can be improved by focusing on the e-mail’s subject line.

We know this from research conducted recently by e-mail platform provider Yesware. As reported this week in Fast Company, Yesware’s data scientists took a look at ~115 million e-mails of all kinds, gathered over the course of a 12-month period, to see how open rate dynamics might be affected positively or negatively by differences in the subject line.

ywThe Yesware analysis was carried by analyzing most- and least-used words and formats to determine which ones appeared to be more effective at “juicing” open rates.

As the benchmark, the overall e-mail open rate observed across all 115 million e-mails was 51.9% and the overall reply rate was about 29.8%. But underneath those averages are some differences that can be useful for marketers as they consider how to construct different subject lines for better impact and recipient engagement.

The findings from Yesware’s subject line analysis point to several practices that should be avoided:

Subject line personalization actually works against e-mail engagement.

It may seem counterintuitive, but adding personalization to an e-mail subject turns out to suppress the open rate from 51.9% to 48.1% — and the reply rate goes down even more dramatically from 29.8% to 21.2%.

Yesware surmises that this seemingly clever but now overused technique bears telltale signs of a sales solicitation. No one likes to be fooled for long … and every time one of these “personalized” missives hits the inbox, the recipient likely recalls the very first time he or she expected to open a personal e-mail based on such a subject line – only to be duped.

“First time, shame on you; second time, shame on me.”

Turning your subject line into a question … is a questionable practice.

Using a question mark in a subject line may seem like a good way to add extra curiosity or interest to an e-mail, but it turns out to be a significant turnoff for many recipients. In fact, Yesware found that when a question mark is used in the subject line, the open rate drops a full 10 percentage points (from 51.9% to 41.6%) – and the reply rate also craters (dropping to 18.4%).

It may be that turning a subject line into a question has the effect of reducing the power of the message. Yesware data engineer Anna Holschuh notes that posing a question is “asking a lot of an already-busy, stressed-out professional.  You’re asking them to do work without providing value up front.”

On the other hand, two subject line practices have been shown to improve e-mail open rates – at least to a degree:

Include numbers in the subject line.

Subject lines that contain “hard” numbers appear to improve the e-mail open rate slightly. Yesware found that open rates in such cases were 53.2% compared to 51.9% and the reply rate improved as well (to 32%).  Using precise numbers – the more specific the better – can add an extra measure of credibility to the e-mail, which is a plus in today’s data-rich environment.

Use title case rather than sentence case.

Similarly, Yesware has found that the “authority” conveyed by using title case (initial caps on the key words) in e-mail subject lines helps them perform better than when using the more informal sentence case structure.

The difference? Open rates that have title case subject lines came in at 54.3%, whereas when using sentence case in the subject line resulted in open rates at just 47.6%.

Similarly, reply rates were 32.3% for e-mails with subject lines using title case compared to 25.7% for e-mails where the subject line was sentence case — an even more substantial difference.

Generally speaking, e-mail marketing succeeds or fails at the margins, which is why it’s so important to “calibrate” things like subject lines for maximum advantage. The Yesware analysis demonstrates how those tweaks can add up to measurable performance improvements.

Consumer E-Mail Marketing: Too Much of a Good Thing?

igAdvertisers often complain about the drawbacks of online display advertising — and it’s not hard to figure out why.

Online display ad viewability, which is defined by the Media Rating Council as at least 50% of an ad’s pixels being in-view for at least one continuous second, is running under 45% these days — meaning that fewer than half of online display ads meet the definition of being viewable.

That’s actually a lower percentage than before; viewability charted closer to 50% in 2014, according to the global media valuation platform Integral Ad Science.

Because of these middling viewability rates, many advertisers look to e-mail marketing as the panacea. Not only is e-mail marketing inexpensive, the rational goes, it’s also more likely to attract and engage recipients.

But here too, the evidence is that there is mediocre visibility, too. And in this case, it’s actual willful ignorance.

According to the results of a study conducted earlier this year by business technology research firm Technology Advice, ~40% of the ~1,300 U.S. adults surveyed reported that they completely ignore marketing-oriented e-mails.

Of the ~60% who reported that they do open marketing e-mails, only a little over 15% do so on a regular basis.

Here’s a breakdown of the underwhelming stats that were gathered by Technology Advice:

  • ~58% of recipients read from 0 to 25% of marketing-oriented e-mails sent to them
  • ~21% read 25% to 50% of the marketing e-mail sent to them
  • ~13% read 50% to 75% of them
  • Just ~8% read 75% to 100% of them

In an attempt to “juice” these figures, marketers are experimenting with robust personalization in e-mails that become evident even before anyone opens them (e.g., personalization showing in the subject line), along with offering clearly marked discounts and other promo attractions.

In this regard, consumers do expect businesses to provide “value” in exchange for their attention, which explains by ~40% of the survey’s respondents are responding to discounts and similar promotional offers above all other types of e-communiqués.

But with such modest levels of people interacting with any marketing-oriented e-mails at all, there’s a question as to how whether these ploys to improvement engagement are just nibbling around the edges.

Because the reality is, there’s a big portion of the market that’s become jaded about e-mail.

Another approach seems counter-intuitive but just might be working better: reducing the frequency of e-mail solicitations from advertisers.  That theory is supported by the Technology Advice research, which found that nearly 45% of respondents feel that businesses would improve their marketing effectiveness by actually sending them less frequent e-mails.

A case of “less is more”? Probably so.