Email campaigns are an important marketing tool for any business, but reaching the target audience can be difficult when spam filters and blacklists are blocking messages. Blacklisting occurs when email service providers block emails from specific senders or include flagged words in emails that trigger spam filters. This can be detrimental to businesses because email campaigns may not reach the intended audience leading to a significant hit in the marketing strategy. Therefore, it is important to know the list of blacklisted spam words used in email campaigns to avoid blocks.

Understanding the Blacklisted Spam Words
Email service providers use algorithms to filter out spam emails and decide whether a specific email is spam and should, therefore, be blocked or delivered to a user's inbox. Spam words are identified when their algorithms recognize certain text patterns that imply content spam. These patterns are often indicative of spam messages or emails that recipients don't want to see.

Here are a few of the most popular spam words that should be avoided when creating an email campaign:

1. Act Now
2. Apply now
3. Billion
4. Clearance
5. Congratulations
6. Debt
7. Discount
8. Earn
9. Free
10. Guarantee
11. Income
12. Limited time
13. Money-back
14. Opportunity
15. Promise
16. Risk-free
17. Solutions
18. Trial
19. Urgent
20. Win
...to name a few.

Here are some of the top spam words that should be avoided in email campaigns:

- Free: While it can be tempting to include the word ‘Free’ in email subject lines, it is often flagged as spam. Using this word too frequently can severely affect your email deliverability rate.
- Discount: The word ‘Discount’ can be seen as too marketing-focused and can trigger spam filters. Instead, focus on highlighting the value of your offer.
- Winner: Words like ‘Winner’ or ‘Winning’ can be seen as spammy because they are often associated with spam emails about lottery or contest prizes.
- Urgent: Using the word ‘Urgent’ can create a sense of anxiety and pressure. While urgency can be an effective marketing tactic, it should be used sparingly.
- Limited time: Similar to the word ‘Urgent,’ the phrase ‘Limited time’ can create a sense of time pressure that can be seen as spammy.

These spam words are just a few examples of words that should be avoided in email campaigns. However, it is important to note that spam filters constantly change and evolve, so staying updated on industry best practices is essential.

To improve the chances of successful email campaigns, here are some tips to keep in mind:

- Use personalized subject lines
- Optimize email designs for mobile
- Segment your target audience
- Focus on providing value to your subscribers
- Monitor email engagement metrics

In conclusion, blacklisted spam words can significantly impact email campaigns' performance. Therefore, it is essential to avoid these words and stay informed about the latest spam filter trends. By following industry best practices and focusing on providing value to subscribers, email campaigns can achieve better results and drive higher engagement rates.