Hadoop is a robust framework for processing and analyzing large datasets. To ensure that the email you’re sending about the course doesn’t end up in spam folders, consider the following tips:

1. Use a Recognizable Sender Name: Ensure the sender’s name is recognizable and associated with the course or training institute. People are more likely to open emails from senders they recognize.
2. Craft a Clear and Relevant Subject Line: The subject line should indicate the email’s purpose and the course’s value. Avoid using generic or spammy-sounding subject lines.
3. Avoid Excessive Capitalization and Symbols: Using excessive capitalization, symbols, or special characters can trigger spam filters. Keep the email content professional and clean.
4. Provide Valuable Content: Ensure that the email content is informative and provides value to the recipients. Please include details about the course, its benefits, who it’s suitable for, and any special features.
5. Personalize the Email: Personalize the email with the recipient’s name or other relevant information. Personalized emails are more likely to be opened and engaged with.
6. Include a Clear Call to Action: Clearly state what action you want the recipients to take. This could be registering for the course, visiting a website, or contacting for more information.
7. Use Relevant Links: If you include links in the email, ensure they are relevant and lead to trustworthy sources. Avoid using shortened URLs, as they can sometimes trigger spam filters.
8. Avoid Overuse of Images and Attachments: While images can make your email visually appealing, too many ideas or large attachments can be flagged as spam. Use images sparingly and ensure they are relevant.
9. Check Spam Score: Before sending the email, consider using tools to check your email content’s spam score. This can give you insights into how likely your email will be flagged as spam.
10. Provide Unsubscribe Options: Include an option for recipients to unsubscribe from future emails. This helps build trust and ensures compliance with email regulations.