Points to check before sending an email campaign

Before sending an email campaign, it's crucial to check a few essential points to maximize your deliverability and avoid being flagged as spam. Here's a final checklist to ensure your message is compliant, clean, and optimized for performance.

Checklist Before Sending

• You have excluded from your list contacts who unsubscribed from previous campaigns.
• You have removed duplicate addresses.
• You have deleted contacts who generated complaints.
• The sender name clearly identifies your company or brand.
• The sender’s email address is real, monitored, and linked to your domain.
• Your subject line encourages opens and avoids trigger words like “free”, “win”, “gift” or excessive punctuation.
• Your subject line is under 40 characters for better display, especially on mobile.
• Your message uses either plain text or HTML that follows email design best practices (including inline CSS).
• Your layout does not exceed 600 pixels in width, ensuring readability on all devices.
• Your color scheme is accessible and not overly flashy.
• Your images are hosted online (linked externally, not embedded).
• All images include descriptive ALT attributes in case they fail to load.
• A functional unsubscribe link is clearly visible and easy to use.

Why These Checks Matter

As inboxes are flooded with commercial emails, user fatigue and spam filtering are on the rise. What used to be “anti-spam” filters are now evolving into “anti-advertising” filters. That’s why it's more important than ever to ensure your targeting and content are relevant, timely, and compliant.

By following these steps, you're not only protecting your sender reputation — you're also improving the chances that your message will reach the inbox and drive results.

Ready to send? Start by verifying your contact list now with UnlimitedMailsCheck to reduce bounce rates and improve your inbox placement.