Why do my emails go to spam? 7 tips

spam email
Summarize this article with:

Emails are an essential marketing tool. But it can be frustrating to find that your messages end up in the spam folder, despite your best efforts to stay compliant.  

By mastering the following strategies, you can increase your chances of staying in the inbox rather than slipping unnoticed into the spam folder. 

Stay proactive, adapt to your audience's needs, and maintain a clean sender reputation to ensure the continued success of your email marketing campaigns.

What is the “Spam” ?

The “Spam” (or “Junk” or “Junk”) folder is a folder in your email inbox specifically designed to store unwanted or unsolicited messages. Spam filters from email service providers, such as Gmail, Yahoo, Outlook, etc., scan emails and attempt to identify those that appear to be spam.

E-mails considered to be spam can include unlined advertising messages, scams, emails or messages containing unwanted content . Anti-spam filters use various techniques to detect these messages, including the analysis of keywords, verification of the sender IP addresses, the inspection of links and attachments, etc.

It is recommended that you regularly check your Spam folder to ensure that legitimate emails have not been accidentally classified as spam. You can also configure your spam filters to improve their accuracy by flagging false positives (legitimate emails incorrectly classified as spam) or false negatives (unwanted emails that slip through the filter).

1 – Understand the Graymail phenomenon

Graymail, that in-between legitimate and unwanted emails, can be a formidable trap. Make sure your emails generate a high level of engagement by monitoring signals like opens, replies, and shares . Inbox providers evaluate the quality of your content through these interactions.

2 – Respect commitment signals 

Reception box suppliers, such as Gmail and Yahoo, are based on engagement signals to determine the legitimacy of emails. Maximize positive signals by creating attractive content . Thus, avoid negative signals, such as spam complaints or low opening rates , to maintain a good reputation as a sender.

Spam 1

3 – Avoid email traps (Honeypots)

Honeypots, these inactive email addresses intended to trap spammers, may be the cause of your deliverability problem. Be careful in how you collect and manage your email lists to avoid sending emails to these addresses. Follow the CAN-SPAM Act to ensure compliance.

In this videos, Steve Toitt shares 7 there good practices to prevent your marketing emails from falling into spam.

4 – Update your list regularly

Regular surveillance of email delivery and cleaning your subscriber list is essential. Remove non -reactive subscribers to maintain a engagement rate and prevent your IP address from being blocked.

Read also: 27 Emailing trends in 2025: Key statistics to know

5 – Practice permission-based marketing

Validate the email addresses and make sure you get an explicit permission before sending emails . marketing goes against the Can-Spam Act and can harm your delivery rate .

6 – Adapt to audience preferences

Understand your audience's preferences and personalize your content accordingly. Relevant and interesting emails increase engagement and the likelihood of staying in the inbox.

7 – Stay informed of developments on spam

Email best practices are constantly evolving. Stay up to date with the latest trends and guidelines to adjust your strategy accordingly. Follow our blog so as not to miss the latest news and advice on the subject.

Every Thursday at 6 p.m., we offer to answer all your questions about modern prospecting and show you how Magileads can radically transform your Marketing and Sales results.

You want to know more, contact us >>

Summarize this article with:

To go further

Email marketing: an effective customer acquisition tool

Email marketing: an effective customer acquisition tool

Email marketing optimizes customer acquisition through personalization, precise targeting, and an excellent return on investment.
How to build and enrich an effective B2B list in 2026

How to build and enrich an effective B2B list in 2026

Key steps for B2B list buying, enrichment, GDPR compliance and prospecting optimization in 2026.
A complete guide to integrating PRM into a customer acquisition strategy

A complete guide to integrating a PRM into a customer acquisition strategy

A complete guide to integrating PRM into a customer acquisition strategy to centralize, qualify and automate your leads, and maximize your conversion rates.
Succeed with your customer acquisition campaign in 13 steps

Succeed with your customer acquisition campaign in 13 steps

Discover 13 key steps to succeed in your customer acquisition campaign: objectives, qualification, channels, messages and loyalty to boost your results.
How to improve your LinkedIn Social Selling Index

How to improve your LinkedIn Social Selling Index

Improve your LinkedIn Social Selling Index with an optimized profile, a targeted network, and relevant content to boost your professional opportunities.
Magileads white-label marketing solution for agencies

Magileads white-label marketing solution for agencies

Magileads white-label marketing solution for agencies: personalization, centralized management, and automation for agencies looking to enhance their offerings
Nicolas, co-founder of Magileads

Got it, we'll send it to you
right away!


our free 2025 playbook on
multi-channel prospecting