2/ Grab attention
It may be easier said than done, but you’ve got to hook your audience with the language of the subject line. Asking a question or starting the subject line with ‘how to…’ are generally two foolproof ways to create a solid open rate. Don’t be afraid to use humour and puns; your subject line becomes catchier and more memorable in case they would like to look back and find the email again.
3/ DON’T USE ALL CAPS OR OVERUSE EXCLAMATION MARKS!!!
Capital letters give the impression that you are yelling, and nobody likes to be yelled at. Although the email is more likely to be noticed, the likelihood of someone opening it is very slight. One exclamation mark is fine if it matches an exciting and dramatic subject line, however multiple can be conveyed as amateurish. These kinds of subject line also comes across as very spammy.
4/ Personalise
Instead of trying to catch attention through capitals, try using personalisation to catch the recipients eye. This makes the reader feel more targeted and individualised , not just part of a mass email campaign. However, you may have a lot of information about each recipient, but don’t go too over the top with the personalisation as this can come across a bit creepy. Even if you don’t use specific names, using words such as ‘you’ and ‘your’ give an impression that you are addressing the recipient directly.Location personalisation can also be very effective. Grouping your recipients into area locations and adapting each subject line to be more relevant to each group is a great marketing technique.