How to prevent your email marketing from falling into spam (with a list of “prohibited” words) » Portal Insights

If you're looking for your marketing emails to reach your recipients' inboxes, instead of being sent to the spam folder, we've put together some tips to help you.

Permission to Send

Make sure you have your contacts' permission to send emails. This is typically done via a checkbox during registration or subscription (opt-in).

Email Frequency

Don't send emails too frequently. Too many emails can lead users to mark your messages as spam.

Keep a Clean List

Regularly clean your email list, removing inactive contacts or those who are not opening your emails.

IP Address and Domain Verification

Check your IP address and domain to confirm they are not on the list of known spammers.

Content formatting

Avoid exaggerated formatting and text colors. Try to keep email content professional and clear.

Sender Identification

Make sure the sender identification is clear and recognizable.

Unsubscribe Option

Always include an easy and visible unsubscribe link at the end of each email.

Email Authentication

Use email authentication protocols like SPF, DKIM, and DMARC to verify your email.

IP Reputation

Maintain a good sender IP reputation. Generally, good email marketing tools are already prepared to deal with this.

Avoid using words with low reputation (especially in the email marketing subject line)

Most email services today have filters to recognize words that suggest an email is unwanted. Therefore, avoid using the following words:

List of “forbidden” words that can make your email marketing go to spam

• Free
• Earn money
• Promotion
• Offer
• Discount
• Credit
• Guarantee
• Without risk
• Special offer
• Best price
• Be rich
• Compare
• Satisfaction Guaranteed
• Weight loss
• You have been selected
• Make money

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