---
title: "Smart Quarantine | DuoCircle"
description: "We are happy to announce that the Smart Quarantine services a feature that was previously only available on accounts with more than 150 email addresses is now."
image: "https://www.duocircle.com/images/og-default.png"
canonical: "https://www.duocircle.com/blog/spam-filtering/smart-quarantine/"
---

Quick Answer

Smart Quarantine is now available to all DuoCircle Email Gateway and Email Forwarding customers (previously limited to accounts with 150+ addresses). Instead of asking recipients to check a quarantine folder daily, Smart Quarantine notifies the original sender that their message was held and gives them a link to release it themselves. Spammers ignore the notification; legitimate senders release within minutes, which collapses false-positive resolution time and clears the burden from end users. Pricing is $30 per year as an add-on for Email Gateway and Email Forwarding.

Share 

[ ](https://www.linkedin.com/sharing/share-offsite/?url=undefined%2Fblog%2Fspam-filtering%2Fsmart-quarantine%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=Smart%20Quarantine&url=undefined%2Fblog%2Fspam-filtering%2Fsmart-quarantine%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=undefined%2Fblog%2Fspam-filtering%2Fsmart-quarantine%2F "Share on Facebook") [ ](https://reddit.com/submit?url=undefined%2Fblog%2Fspam-filtering%2Fsmart-quarantine%2F&title=Smart%20Quarantine "Share on Reddit") [ ](mailto:?subject=Smart%20Quarantine&body=Check out this article: undefined%2Fblog%2Fspam-filtering%2Fsmart-quarantine%2F "Share via Email") 

![Spam](https://media.mailhop.org/duocircle/images/2016/05/spf-flattening-2357.jpg) 

We are happy to announce that the [Smart Quarantine](/email/smart-quarantine/) services a feature that was previously only available on accounts with more than 150 email addresses is now available for **all of our Email Gateway and Email Forwarding clients**.

Smart quarantine all but eliminates false positives for messages misclassified as spam.

The Smart Quarantine is a progressive approach to keeping your inbox clean. Rather than a traditional quarantine folder that needs to be checked each day by your end users, we are now notifying the sender that their message was quarantined and giving them the opportunity to release the message themselves.

The sender will receive and email notification with instructions on how to release the message and the recipient will have the ability to confirm and release the false positive.

![fp-release-email-enduser](https://media.mailhop.org/duocircle/images/2016/04/fp-release-email-enduser.png) 

What we have found is that Spammer do not release these messages but false positives are quickly remedied. It’s a win win situation for the sender and you the recipient.

The Smart Quarantine is available as an add on service for $30 per year, but for the next 14 days we are offering 30% off coupon code “smartq”.

You can use this if you are an existing customer, or if you are ordering new service. Note, smart quarantine is only available for Email Gateway and Email Forwarding services.

![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) 

Brad Slavin 

General Manager

General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio.

## Secure your email infrastructure

Protect, authenticate, and deliver. Contact our team to find the right solution.

[Contact Sales](/contact/) [Explore Products](/products/) 

## Related Articles

[  Spam Filtering 5m  A Guide On Email Gateway: What It Is And The Importance Of A Secure Email Gateway  Mar 4, 2021 ](/blog/spam-filtering/a-guide-on-email-gateway-what-it-is-and-the-importance-of-a-secure-email-gateway/)[  Spam Filtering 5m  Anti-Spam Filters and How They Work  Jun 19, 2020 ](/blog/spam-filtering/anti-spam-filters-and-how-they-work/)[  Spam Filtering 1m  CERT Advisory Symantec and Norton Critical Vulnerability  Jul 6, 2016 ](/blog/spam-filtering/cert-advisory-symantec-norton-critical-vulnerability/)[  Spam Filtering 3m  Cloud-Based Spam Filtering Protects Your Company  Sep 10, 2018 ](/blog/spam-filtering/cloud-based-spam-filtering-protects-your-company/)

```json
{"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}],"sameAs":["https://www.linkedin.com/company/duocircle","https://x.com/duocirclellc","https://www.facebook.com/duocirclellc","https://www.g2.com/products/phish-protection-by-duocircle/reviews","https://github.com/duocircle","https://www.crunchbase.com/organization/duocircle-llc"],"contactPoint":{"@type":"ContactPoint","contactType":"customer support","url":"https://support.duocircle.com"},"knowsAbout":["Email Security","Email Authentication","SPF","DKIM","DMARC","Phishing Protection","Spam Filtering","SMTP Relay","Email Deliverability","Email Forwarding"]}
```

```json
{"@context":"https://schema.org","@type":"WebSite","name":"DuoCircle LLC","url":"https://www.duocircle.com","description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","publisher":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]}}
```

```json
[{"@context":"https://schema.org","@type":"BlogPosting","headline":"Smart Quarantine","description":"We are happy to announce that the Smart Quarantine services a feature that was previously only available on accounts with more than 150 email addresses is now.","url":"https://www.duocircle.com/blog/spam-filtering/smart-quarantine/","datePublished":"2016-05-20T05:24:44.000Z","dateModified":"2025-05-22T13:39:50.000Z","dateCreated":"2016-05-20T05:24:44.000Z","author":{"@type":"Person","@id":"https://www.duocircle.com/authors/brad-slavin/#person","name":"Brad Slavin","url":"https://www.duocircle.com/authors/brad-slavin/","jobTitle":"General Manager","description":"Brad Slavin runs DuoCircle, the company behind DMARC Report, AutoSPF, Phish Protection, and Mailhop. His focus is product strategy, customer relationships, and the commercial and compliance side of email authentication (DPAs, SLAs, enterprise procurement).","image":"https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg","knowsAbout":["Email Security Strategy","SaaS Product Management","Enterprise Compliance","Customer Success","Email Deliverability Business"],"worksFor":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com"},"sameAs":["https://www.linkedin.com/in/bradslavin"]},"publisher":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]},"mainEntityOfPage":{"@type":"WebPage","@id":"https://www.duocircle.com/blog/spam-filtering/smart-quarantine/"},"articleSection":"spam-filtering","keywords":"","wordCount":217,"image":{"@type":"ImageObject","url":"https://media.mailhop.org/duocircle/images/2016/05/spf-flattening-2357.jpg","caption":"Spam","width":900,"height":600},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".answer-block","h1"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Blog","item":"https://www.duocircle.com/blog/"},{"@type":"ListItem","position":2,"name":"Spam Filtering"},{"@type":"ListItem","position":3,"name":"Smart Quarantine","item":"https://www.duocircle.com/blog/spam-filtering/smart-quarantine/"}]}]
```

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.duocircle.com/"},{"@type":"ListItem","position":2,"name":"Blog","item":"https://www.duocircle.com/blog/"},{"@type":"ListItem","position":3,"name":"Spam Filtering","item":"https://www.duocircle.comundefined"},{"@type":"ListItem","position":4,"name":"Smart Quarantine","item":"https://www.duocircle.com/blog/spam-filtering/smart-quarantine/"}]}
```

```json
{"@context":"https://schema.org","@type":"BlogPosting","headline":"Smart Quarantine","description":"We are happy to announce that the Smart Quarantine services a feature that was previously only available on accounts with more than 150 email addresses is now.","url":"https://www.duocircle.com/blog/spam-filtering/smart-quarantine/","datePublished":"2016-05-20T05:24:44.000Z","dateModified":"2025-05-22T13:39:50.000Z","dateCreated":"2016-05-20T05:24:44.000Z","author":{"@type":"Person","@id":"https://www.duocircle.com/authors/brad-slavin/#person","name":"Brad Slavin","url":"https://www.duocircle.com/authors/brad-slavin/","jobTitle":"General Manager","description":"Brad Slavin runs DuoCircle, the company behind DMARC Report, AutoSPF, Phish Protection, and Mailhop. His focus is product strategy, customer relationships, and the commercial and compliance side of email authentication (DPAs, SLAs, enterprise procurement).","image":"https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg","knowsAbout":["Email Security Strategy","SaaS Product Management","Enterprise Compliance","Customer Success","Email Deliverability Business"],"worksFor":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com"},"sameAs":["https://www.linkedin.com/in/bradslavin"]},"publisher":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]},"mainEntityOfPage":{"@type":"WebPage","@id":"https://www.duocircle.com/blog/spam-filtering/smart-quarantine/"},"articleSection":"spam-filtering","keywords":"","wordCount":217,"image":{"@type":"ImageObject","url":"https://media.mailhop.org/duocircle/images/2016/05/spf-flattening-2357.jpg","caption":"Spam","width":900,"height":600},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".answer-block","h1"]}}
```