Advanced Threat Protection Administrator

Advanced Threat Protection Administrator

How to Add and Block Emails, Domains, Countries and more with Advanced Threat Protection

Rather than delivering mail directly to your domain, this sends it to the Advanced Threat Protection system that checks the email first – then sends the “safe” mails to your mailbox and quarantines the others.

There are a number of ways that you can block or whitelist specific emails.

The administrator can see the Allowed List Requests.  Emails are added to this list when a user "releases" it from quarantine. This page is blank, but when there is something in the list you'll have the option to permanently release it or permanently reject it.



These are the most commonly used options

·         Allowed List Requests – This feature allows the administrator to approve and/or deny any allowed list requests from one central location.

·         Email Addresses – This feature filters mail according to e-mail addresses. The administrator may add or remove email addresses from the allowed and blocked lists.

·         Domains – This feature filters mail according to the domain. The administrator may add or remove domains from the allowed and blocked lists.

·         Filenames – This feature filters mail according to the attachment and link filename. The administrator may add or remove attachment and link filenames from the blocked lists.

·         Text – This feature filters mail according to the text. The administrator may add or remove inbound text from the allow and blocked lists. Additionally, text may be filtered for outbound mail too.   

·         Countries – This feature filters mail according to the country. The administrator may add or remove countries from the blocked list.


Blocked and Allowed

In each of these areas you have two sections Allowed (left) and Blocked (right). Enter the domain, email, or text into the proper section and save it.


Note: An incorrectly entered exception list item or allowing all addresses from large domains similar to @msn.com may open the Spam floodgates! Do not add your own domain in the exception list since several spam messages use the To: address as the From: address. Please contact the Chroma Support team if you are not sure.

Acceptable Entry Examples:

·         johndoe123@hotmail.com (but not @hotmail.com since many spammers use hotmail.com and yahoo.com From: addresses)

·         jane_doe@smith-cpas.com (or just @smith-cpas.com since you want all mail from this domain and not hotmail)

·         @newsletters.onlinenews.net (but not newsletter.12.22.02@newsletters.onlinenews.net since the From: address changes with each e-mail)


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