Then, once a person has completed a particular event in the application (like creating their first campaign), we use the API to change the ‘Created Campaign’ custom field to ‘Yes’ on their subscriber profile. Finally, we set up a custom segment to get a list of people who meet the criteria ‘Created Campaign=Yes’ and ‘Uploaded List=No’ and then sent them an automated email encouraging them to upload their list and complete the send.
Keep the subject line and pre-header short: The subject line is crucial. Keep it short so the reader knows exactly what the email topic is about. And the pre-header text (also known as snippet text), don’t let it go to waste by using “To view this email in your browser…”. Instead, summarize the email or include a call to action (i.e., Use “FREESHIP” to get free shipping).
Don’t talk down to people. I think this should be obvious. But looking at the email offers I get, clearly it isn’t. Don’t tell people, “Not buying this product would be idiotic!” or “Only a fool doesn’t understand the value in this service.” This whole email marketing strategy relies on you making people understand the value they can get from you. And sometimes that means making people see the downsides of not buying. But you can do that in a friendly, respectful way.
You can assess the interests of individual list members by monitoring which pages they land on, and where they go from there. The process is explained by this example from Airbnb. They use click behaviour to ascertain the destination preferences and travel styles of customers and base their follow-up emails on those preference profiles. It's intensely specific, but it gets results!

Retention/Loyalty and Growth: At this stage, the customer purchased a product, used it, and keeps coming back. As the customer gets to know the product, your email marketing campaigns should focus on ways to maximize the value of the product, find new ways to use it, and potentially add on other related products or services. Customer loyalty is a key part of company success, but growth goes hand-in-hand; your email marketing should support a strong cross-selling and upselling strategy. When you identify complementary products for customers, you continue to provide increased value. These full-funnel campaign emails can have a slightly stronger sales lead than in first-time engagement, but keep it gentle if you’re trying to sell a product that’s new to the customer. Also, keep in mind that customer loyalty isn’t as strong in B2B as it is in B2C, so continue to remind customers of how your products or services save them time, money, and resources.
That isn’t to say that sales-y promotions couldn’t ever create results—as marketing “gurus” have proved. The results just aren’t as good as they could be. Take the biggest gurus’ results—the ones they boast about—and calculate their conversion rates. Often their marketing is comparatively ineffective. They just have massive volume, so the sales numbers are impressive. 

A significant element of email marketing is relationship. Does a recipient trust you? Does a recipient even know who you are? When an email jumps the gun by forcing familiarity too soon, the personalization comes across as skeevy. Intimacy is earned in real life, and it would appear to be the same way with email. Take this example from my inbox; no one has called me lowercase kevan l lee in years.
Use your real email signature: Just like using a real reply-to email address, you want to use real contact information within the email and the best way to do that is to include your contact details in the email signature. Giving your readers the opportunity to contact you or connect with you online is a great way to be personal and build a relationship with them.
Give people a way to avoid more emails about the same offer. If you do a concentrated promotion for something, you might send lots of emails about it in a short time. Give people the option to avoid future emails about the offer. Just add a link to the end of the emails (e.g., “If you’re sure you’re not interested in [ offer ], click here, and I won’t send you any more emails about it this year.”). That way you won’t annoy people who aren’t interested in the offer now. You could argue that some of them might buy if they saw all the emails. Well, if you’re only interested in this month’s sales, send as many emails as you can. I just assume you want to have someone left on your list for next month.

Customers demonstrate the potential to become more valuable customers. These are profitable when assessed in terms of lifetime value, but the number of product holdings or current value is relatively low compared with the group above. Recommendations about relevant products based on their purchasing and browser behaviour can be an effective approach with this segment.
That isn’t to say that sales-y promotions couldn’t ever create results—as marketing “gurus” have proved. The results just aren’t as good as they could be. Take the biggest gurus’ results—the ones they boast about—and calculate their conversion rates. Often their marketing is comparatively ineffective. They just have massive volume, so the sales numbers are impressive.
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