When it comes to deciding how to craft that perfect subject line, there appears to be really only one area to avoid: the subject line of 60 to 70 characters. Marketers refer to this as the “dead zone” of subject length. According to research by Adestra, which tracked over 900 million emails for its report, there is no increase in either open rate or clickthroughs at this 60-to-70 character length of subject line.
Another tool built by AppSumo, List Builder is an email marketing tool that helps you build up your mailing lists. It captures (engaged) visitors right before they are about to leave with pops that are triggered by clicks and timers. It is a very easy tool to use as it has a drag-and-drop functionality and features that can be customised to your brand.
Email Octopus’ free plan (‘Shrimp’) allows users to send unlimited emails to up to 2500 subscribers. Users can send emails from multiple email addresses and there are still plenty of templates to experiment with, although it does not include any automation functionality (which is reserved for paying subscribers). If you don’t fancy signing up for an account just yet, 11 completely free templates are available to download directly from their website.
When it comes to deciding how to craft that perfect subject line, there appears to be really only one area to avoid: the subject line of 60 to 70 characters. Marketers refer to this as the “dead zone” of subject length. According to research by Adestra, which tracked over 900 million emails for its report, there is no increase in either open rate or clickthroughs at this 60-to-70 character length of subject line.
Take advantage of the email template designer or upload your own. There are also tools to segments lists and personalize emails with all your contact data. The A/X testing feature allows you to test up to ten different versions of your email before you decide which one stands out as the best. A campaign comparison tool pits your previous campaigns against the current one to give a complete picture.

ConvertKit is a very easy-to-use email marketing tool, “built by creators, for creators”. This somewhat newer tool helps marketers, bloggers, writers take their email lists and grow their business through forms, trackable data and automations. It also has very digestible reporting for subscriber acquisition, an extensive knowledge base and email support.
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).
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