The subject line is the first impression and will ultimately determine whether your emails are opened or not. Brainstorm several subject lines for every email you send and test two to three subject lines for every email. Over time, you’ll see what works and what doesn’t, and you can apply those learnings to increase the effectiveness of your email automation campaigns. Here are some best practices:
The key here is just not to purposely deceive your recipients. If you are sending a campaign on behalf of ABC widgets, it’s a breach of the laws to put ‘Brad Pitt’ in the From name field to get people to open the campaign. However, arousing curiosity or getting creative with your subject line is perfectly ok, so long as you don’t purposely try to deceive recipients.
To better understand their subscribers and what they’re interested in, Finish Line decided to tag the site to track subscriber behavior in order to develop a broader understanding of who their customers are. They also integrated their tracking into their e-mail service provider so they could automatically send certain types of e-mails to certain groups.
Build your audience and manage your contact groups. Install our opt-in widget on your website to capture email addresses and automatically sync to contact lists in your account. Upload your own contact lists as either a CSV, TXT or XLS files. Our system will seamlessly integrate into your CRM acting as your second pair of eyes, filtering out unsubscribes and possible errors.
That said, your confirmation emails don’t have to be boring templates. Use them, as Hipmunk does in the example above, to engage subscribers and get them ready to interact with your brand. Here, Hipmunk shares all the different benefits users have access to; yours could include links to FAQs, helpful articles, “Start here” guides, or other resources that create a more positive experience for your subscribers.
What they should improve: It's probably more of a feature than a bug but definitely one of the things I don't find ideal – you're completely dependent on Amazon SES. Because of that, the setup process takes a lot longer than for other newsletter tools. You have to register for two different services and Amazon requests a lot of information from you.
A list is an easy way to offer something of value, sell a product or service, and not seem too obvious about it. A list gives a customer a subconscious message that your email is organized in a way that makes it an easy read. They'll be more compelled to open your email if they know ahead of time that they'll not be facing a wall of text. Add products or services to this list and you'll not only get them interested in opening your email, but you can showcase various products at the same time. Here are some good examples:

Ensure Your Contacts Are Opted In – The last thing you want is for someone to flag your email as spam. If someone isn’t sure why they’re getting an email from you, that’s a bad sign as it can quickly lead to high spam rates and eventual blacklisting. Only send to people who have requested information from you, and use a double opt-in and email confirmation process to avoid this issue.

If you offered subscribers a coupon in exchange for their email address, make sure you set up your email automation to actually send the coupon code in the email. Create an obvious CTA that takes users directly to your website to redeem the coupon. If you offered a PDF or something else in exchange for an email, make sure it’s included in the first one.
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