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Spam Checker

Copy/paste an email message to detect and remove spam words.

Don't land in SPAM anymore

Spam Checker by Mailmeteor helps you validate your emails before sending them. It detects spam words that look unnatural, shady, overpromise and more. By rephrasing or using synonyms, you avoid spam filters.

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How it works

Learn how to detect spam words in your emails with this 2-min video tutorial.

Trusted by 6 million professionals

Questions & answers about spam checker

Everything you need to know about SPAM.

How does spam checker work?

Spam Checker looks for spam trigger words in your email. Spam words are keywords or expressions that email service providers see as red flags.

We divided spam keywords into 5 main categories:

Urgency 🚨 - words that pressure recipients
Shady 🔞 - ethically or legally questionable words
Overpromise 🤩 - exaggerated claims
Money 💰 - all things related to money in general
Unnatural 💬 - words that don't feel natural

The spam checker tool will highlight words that could be avoided or rephrased in your email. To do so, we compiled the most exhaustive spam words list to avoid in your emails.

Remember that if your copy contains one or a few spam words, it doesn't necessarily mean your email will be considered spam. Using words in their context is fine.

What is a spam checker?

A spam checker is a tool that detects spammy words, like an anti-spam filter would. By replacing spammy words or phrases, you make sure your emails land in inbox (and not in a SPAM folder).

Where to learn more about spam?

SPAM is a vast subject, but thankfully we made a detailed article about spam.

Is Spam Checker Free?

Spam Checker is totally free to use. Mailmeteor makes it available to anyone interested in checking their email content.

Is Spam Checker safe to use?

Spam Checker detects hundreds of words and phrases that appears to be spammy. But anti-SPAM filters take into account more factors than just your email content. Your email address reputation and the frequency of your sending are two other important factors (amongst many others). If you are interested in learning more about this topic, read our article about email deliverability

Is Spam Checker up to date?

We keep our list of spam words up to date so you can get the most relevant results. The last update was on 22 December 2024

Does spam checker use my data?

Your data stays yours - like all products made by Mailmeteor. Emails content that you verify using our spam checker are not saved by us nor shared with a third-party.

What to do once an email is cleaned?

Once you have cleaned your email from any spam words, you can send a highly personalized email campaign using Gmail with Mailmeteor. Mailmeteor lets you send mass emails in Gmail that feel personal. It’s the most popular Gmail mail merge tool, Trusted by 6 million people worldwide for its simplicity and privacy focus.