Score with subject line

Be specific!

The subject summarizes the content of an email in a highly compressed form. The reader must immediately recognize what it is about and decide just as quickly to read or delete (or ignore) it. The subject line should therefore be reduced to a core message - even if several messages are packed into the email newsletter.

Length

There are different statements regarding the ideal length of the subject line. However, the tendency is clearly towards short subject lines, as very few characters are displayed, depending on the email client: These are (smart watches excepted) around 30 to 70 characters.If you summarize the content of your newsletter in 35 to 45 characters, you are spot on. However, this is often not possible, so always put the most important information first!Most email delivery systems allow A/B tests. In most cases, a fixed number or percentage of addresses to be tested is defined for a test. The system then automatically sends the remaining emails with the subject that worked better.

Relevance is king!

The best subject line is useless if the subject and content of the email newsletter are not relevant to the recipient. This speaks against generic emails that are sent to all subscribers to a newsletter, and it is worth dividing your customers and prospects into meaningful segments. The result: higher opening and conversion rates. This is how it works.

Where preheaders are displayed (and where they are not)

Desktop PreheaderApple Mail YesThunderbird NoLotus Notes 8.5 NoOutlook 2003 NoOutlook 2007 NoOutlook 2010 NoOutlook 2013 YesOutlook 2016 YesOutlook for Mac 2015 Yes Mobile preheaderAndroid Native App YesAndroid Gmail App YesAndroid Yahoo! App YesBlackBerry NoiOS Native App JaiOS Gmail App JaiOS Yahoo! App YesWindows Phone Yes Webmail PreheaderAOL Mail YesGmail YesYahoo! YesOutlook.com YesGMX NoWeb.de NoFreenet.de NoMail.ru YesSource of the list