Subject Line Etiquette: Do's and Don'ts for Successful Email Marketing

01/05/23 06:56 AM By Ankita

When it comes to email marketing, the subject line is often the first thing a recipient sees. It's the first impression, and it's crucial to make a good one. A well-written subject line can make a recipient open your email and engage with your content, while a poorly written one can send your email straight to the trash folder.

Here are some do's and don'ts for creating effective subject lines:


  • Keep it short and sweet. Aim for around 50 characters or less.

  • Be clear and concise. Avoid using jargon or complex language.

  • Personalize the subject line with the recipient's name or other relevant information

  • Use action words to create a sense of urgency or excitement.

  • Test different subject lines to see which ones perform best.


  • Don't use spammy words or phrases like "free," "earn money fast," or "click here." These can trigger spam filters and make your email less likely to be delivered.

  • Don't use all caps or excessive punctuation. This can make your subject line look unprofessional and may turn off recipients.

  • Don't make false promises or use misleading language. This can damage your reputation and make recipients less likely to trust you in the future.

  • Don't forget to proofread. Typos and grammar mistakes can make your email look unprofessional and reduce its effectiveness.

In addition to these do's and don'ts, it's also important to use a reputable email marketing platform like OptCulture that can help prevent your emails from being classified as spam. OptCulture with its advanced technology verifies the authenticity of your email and ensures that it reaches the recipient's inbox. This can help increase the deliverability of your emails and improve the overall effectiveness of your email marketing campaigns.