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How to Whitelist or Blacklist a Sender in SpamExperts

One of the most common tasks in a spam prevention program is whitelisting and blacklisting email addresses or domains. This helps you customize spam monitoring programs such as SpamExperts to allow or deny specific domains or email addresses.

In this KB article, we will cover how to whitelist or blacklist a sender in the SpamExperts Control Panel.

How to Whitelist a Sender in SpamExperts

Step 1: Log in to your SpamExperts Dashboard.

Step 2: Beneath Incoming – Protection Settings, click Sender Whitelist.

Step 3: Click the link + Add whitelist sender to open the Whitelist Sender modal.

Step 4: In the whitelist modal, you have a few options. Let’s examine them:

In Local-part is how SpamExperts refers to the username, or the part before the @ sign.

Sender Flag refers to the portion in the headers of the e-mail that will be used to identify the sender for this rule to take effect.

The address is the portion after the @ sign or the domain name.

For our example, we’ll use the following configuration:

This configuration will whitelist all the emails coming from any @chemicloud.com e-mail address sent to [email protected] using both the Envelope Sender and From: address, giving the best chance for the rule to catch the messages.

You can also whitelist individual senders, just replace chemicloud.com with the email [at] chemicloud.com

Click Save to save the rule.

How to Blacklist a Sender in SpamExperts

Step 1: Log in to your SpamExperts Dashboard.

Step 2: Beneath Incoming – Protection Settings, click Sender Blacklist.

Step 3: Click the link + Add blacklist sender to open the Add Sender to Blacklist modal.

Step 4: In the blacklist modal, you have a few options. Let’s examine them:

Local-part is how SpamExperts refers to the username, or the part before the @ sign.

Sender Flag refers to the portion in the headers of the e-mail that will be used to identify the sender for this rule to take effect.

Address is the portion after the @ sign or the domain name.

For our example, we’ll use the following configuration:

This configuration will blacklist all the emails sent to [email protected] from any email account created under chemicloud.com using both the Envelope Sender and From: address, giving the best chance for the rule to catch the messages.

You can also specify individual email account which you want to block, instead of entering the domain chemicloud.com, enter the email address like [email protected]

Click Save to save the rule.

Now, when an email from chemicloud.com is sent to support@ yourdomain.com using this SpamExperts configuration, it 100% will be blocked and not delivered anywhere, not even to spam. This makes us sad, don’t block us!

And that’s how you whitelist and blacklist a domain / email address in Spam Experts!

Updated on December 2, 2025
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Comments

  1. The reason this is useless is that people have an entire list of blacklisted emails and want to input them all at once, not one at a time.

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