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Equation for Great Subject Lines



Email Marketing has been a common and effective tool of marketing managers for many years now. 


Writing a great subject line is a challenge that copywriters/marketing managers face on a daily basis.   


The main “job” of the subject line is to get the email opened! 


Obviously, It also should give an indication of the content inside the email. 


A misleading subject line could lead to the reader feeling cheated. This would defeat the entire purpose of sending the email. 


Some of the other common mistakes on subject line are : 

❌ Using spammy words like Free offer / Discounts / offers : These generally lead the emails to land in promotional / spam folders rather than the inbox. This reduces the chances of these emails being opened/read. 

❌ Not evoking curiosity : If the subject line is boring / similar to 100s of other emails, the chances that the reader would open the same are very low. 

❌ Very long subject lines : The impact is lost if the subject lines are too long. Also, many people view emails on their mobiles nowadays, where the complete subject line may not be visible.  

❌ Spelling & Grammatical mistakes : These emails look unprofessional.  

❌ Ignoring common courtesy (like using all Caps, or too many emojis, exclamation etc) 


Thus in summary, here is my equation for a great subject line!


Curiosity + Relevance = Great Subject Line 


What else would you add to this equation? Do share your inputs.  



Who Am I?

Hi! I am Kumar. I work with a telecom company in UAE in Tariff & Revenue Planning. I have been using Excel for over 20 years now.  

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