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Cisco Secure Email Threat Defense

Cisco Secure Email Threat Defense


What is Cisco Secure Email Threat Defense?

Cisco Secure Email Threat Defense provides protection against email threats that compromise an organization’s brand and operations. Its advanced threat detection capabilities uncover known, emerging and targeted threats. And it expands the scope of organizations' defenses to detect dangerous threats…

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Popular Features

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  • Threat Detection (19)
  • Management Tools (19)
  • Customizability (17)
  • Anti-malware (17)

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What is Cisco Secure Email Threat Defense?

Cisco Secure Email Threat Defense provides protection against email threats that compromise an organization’s brand and operations. Its advanced threat detection capabilities uncover known, emerging and targeted threats. And it expands the scope of organizations' defenses to detect…

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Product Demos

Cisco Secure Email Threat Defense
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Secure Email Gateway

Secure email gateway software prevents the transmission of emails that contravene company policy or contain malware, phishing attacks, spam or other unwanted emails

Avg 8.4
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Product Details

What is Cisco Secure Email Threat Defense?

Cisco Secure Email Threat Defense provides protection against email threats that compromise an organization’s brand and operations. Its advanced threat detection capabilities uncover known, emerging and targeted threats. And it expands the scope of organizations' defenses to detect dangerous threats and rapidly search for and remediate threats across security controls.

Secure Email Threat Defense's Artificial Intelligence and machine learning models include Natural Language Processing to identify malicious techniques used in attacks targeting organizations, derive context for specific business risks, provide searchable threat telemetry, and categorize threats to understand which parts of the organization are most vulnerable to attack. Threat intelligence from Talos™ provides broader and deeper threat data that informs better and faster decision making.

Search capabilities provide access to message details that empower more informed responses. Remediating threats directly in Threat Response streamlines processes and saves time.

As part of a larger Extended Detection and Response (XDR) strategy, Cisco Secure Email Threat Defense defends against critical threats with threat intelligence, advanced threat detection capabilities and vital telemetry that informs strategic threat protection. In combination with numerous third-party integration partners and the larger Cisco Secure portfolio of products, this provides visibility, efficiency, simplicity, and telemetry to security operations.

The ability to orchestrate workflows in Cisco’s XDR solution simplifies processes reduces the burden on organizations' team so they can focus on more strategic initiatives.

Cisco Secure Email Threat Defense Features

Secure Email Gateway Features

  • Supported: Threat Detection
  • Supported: Management Tools

Cisco Secure Email Threat Defense Screenshots

Screenshot of Impact Report showing efficacy metrics and ROI indicatorsScreenshot of Detailed view of phishing messagesScreenshot of Dashboard

Cisco Secure Email Threat Defense Video

Cisco Secure Email Threat Defense Technical Details

Deployment TypesSoftware as a Service (SaaS), Cloud, or Web-Based
Operating SystemsUnspecified
Mobile ApplicationNo
Supported CountriesGlobal

Frequently Asked Questions

Microsoft Defender for Office 365, Proofpoint Email Protection, and Mimecast Advanced Email Security are common alternatives for Cisco Secure Email Threat Defense.

Reviewers rate Threat Detection and Management Tools highest, with a score of 8.7.

The most common users of Cisco Secure Email Threat Defense are from Enterprises (1,001+ employees).
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Reviews and Ratings


Attribute Ratings


(1-18 of 18)
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Score 8 out of 10
Vetted Review
Verified User
Cisco Email Security is being utilized across our whole organization. It's actually a second defense hop into our environment that provides another layer of defense to combat malware, spyware, etc. We also utilize it for outbound content filtering, routing rules, as well as email hygiene. It has proven to be very effective for our enterprise as the granularity was not possible on our email servers and cloud provider gateway.
  • Inbound and outbound content rules and filters.
  • Email routing rules.
  • Clustering capabilities.
  • Backup and restore functionality.
  • Training and certification.
  • Ability to see attachment names in reporting when exported to a file.
It is well suited for medium and large enterprises as a first and second line of defense. A small company may be better off going with a cloud version verses the on-prem version, whether it is physical or virtual. If a proof of concept (POC) can be implemented as a test, I would recommend doing that first before making any decisions.
December 11, 2023

Catch me if you can

Score 8 out of 10
Vetted Review
Verified User
Looking at establishing POC of Cisco ETD
  • Automatic mailbox remediation
  • Easy integration
  • Indexing of emails
  • Incorporate Teams chat
  • Self release quarantine
Better analysis of emails
The ease and automation of mailbox remediation
the simple integration with exchange online removes the need for additional servers and dependencies or configuration
Enhanced url detection and triage
smooth user interface and indexing of emails make it simple to search and purge emails, thus improving response time
November 18, 2023

Cisco a Great Defense

Score 9 out of 10
Vetted Review
Verified User
Cisco Secure Email Threat Defense is used as our primary email gateway. Although, we use O365 Exchange too, all of our corporate email goes through Cisco ETD. It is our primary security gateway for all email traffic. Also, it addresses our junk and malicious email problems/threats. We can manage the amount of unwanted email traffic being delivered to our staff.
  • Manages Junk Mail Well-We configured and tested our configuration to filter out the majority of junk mail hitting our inboxes.
  • Manages Graymail-We configured and tested our Cisco ETD for graymail filtering and reduced the amount of unwanted advertising and other legitimate emails.
  • Creating unique policies that were tailored to block or allow emails from certain senders.
  • Stopped malicious email traffic (e.g., malicious attachments and links) with rules for identifying and stripping potentially malicious attachments or links.
  • Allows easy configuration for other email security measures such as SPF, DMARC and DKIM.
  • Cisco engineers provide an annual free security health check. We took advantage of several security health checks where Cisco certified engineers go over the security setting of our Cisco ETD. We were provided a written report that highlighted strengths and weaknesses of our Cisco ETD setup.
  • Monitoring email traffic flow is almost overwhelming with the amount of information you can obtain from the portal. This gives valuable information to IT staff in terms of volume and type of emails the company is receiving.
  • The creation of policies and order in which they are applied to incoming/outgoing email can sometimes be a little confusing.
  • Testing of rules and/or configuration settings are done live. Would be nice to have a way of testing a rule and/or configuration before going live if possible.
  • Searching and extracting emails with ease/simplicity for eDiscovery or security purposes would be an extra bonus.
  • Having an easier method for setting up and sending secure emails.
For a standard corporate environment Cisco Secure ETD is well suited, both on-premise and cloud deployments. Having come from the federal government sector, it may be less suitable for classified environments.
Score 7 out of 10
Vetted Review
Verified User
We were totally fed up with junk and phishing email and needed something to solve our problem it helped us in detection and elimination of those emails. <br>If you want to get freedom from these phishing emails this is a must have.
  • Protects you from phishing attacks
  • Provide detailed reports regarding any mishap
  • Protects you from spam
  • Sometimes it blocks normal email
  • Cost is a bit high
If someone sends and receives email everyday then it is a non brainer for anyone. It does what it's supposed to do protect you from spam and phishing attacks. We work with a lot of clients and we don't want their data getting leaked and Cisco Secure Email provides just that service.
Score 9 out of 10
Vetted Review
Verified User
Cisco Secure Email is an excellent solution for detecting and eliminating cyber attacks that are targeted toward our emails. My company has been using it for a few years and it has been paramount in securing our emails and actively preventing targeted threats. It has integration with Microsoft 365 which is an excellent feature for us. Filtering is extremely effective in detecting both spam and other kinds of malicious emails.
  • Active Threat detection and elimination.
  • Simple and easy to use.
  • Integration with Microsoft 365.
  • Protection against Spam, Phishing, etc.
  • Availability on cloud, on-premise, and hybrid.
  • Easy and highly customizable spam rules.
  • No free trail / freemium version
If you need to protect your employee's emails against spam, phishing, and other kinds of email attacks, go for Cisco Secure Email. It is the best out there in the market especially when it comes to securing Microsoft 365 email service. It also supports various forms of deployments based on your needs. Cloud mailbox is an amazing feature for remote detection and remediation. The spam detection filters are very useful and effective and allow a finer level of control.
Ahmed Allam | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
We have been using Cisco Secure Email for the past three years to secure our incoming and outgoing emails. Our setup consists of three Microsoft Exchange 2016 servers with approximately 3000 users. The main use of this appliance is to secure our emails from SPAM, Viruses, Phishing emails, and scams.
  • Anti Spam.
  • Phishing Protection.
  • Virus Scanning for Emails.
  • Reports
  • Outbreak filters.
  • Forged Email detection.
  • Data Leakage Protection.
  • Integration with Cloud providers.
I will certainly recommend Cisco Secure Email to my friends/colleagues, one look at the dashboard/statistics will actually convince any IT professional to use this product. We noticed an outstanding improvement in Email quality, most of the SPAM emails are caught, and our users have never been happier!
Finn James | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
I implement Cisco Secure Email to prevent phishing, business email attacks, ransomware and spam, it also gives me better security for Office 365 email. With this software I prevent attackers via email to create some kind of sales scheme to scam our customers also these attackers can create business goals and false marketing via spam in order to get some kind of information from customers but thanks to Cisco Secure Email we can prevent these problems.
  • Smart URL technology is a bestseller because it combats malicious links.
  • Cisco Email Security also improves security for Office 365 email.
  • Protect emails that are sent.
  • It has data loss prevention and content encryption tools to protect confidential information.
  • Adding multiple users to the team is very expensive.
  • Its interface is a bit boring, in addition, it does not have a wide variety of options.
  • It does not have many integrations with other software.
I consider Cisco Secure Email a highly recommended software because it has not let me down in any of its features. If I need to send confidential emails or product links to formalize a sale, I turn to Cisco to ensure delivery from start to finish, it is an ideal software to send files with important information. I have been using Cisco for a long time and it has never given me any problems, security is guaranteed. A very important point to know is that when you want to add several users to the team, this has a very high price.
Score 8 out of 10
Vetted Review
Verified User
I use Cisco Secure Email at my organization for sending secure emails to outside recipients. I usually use Cisco Secure Email to send emails with attachments that may contain sensitive information, such as HIPAA. Cisco Secure Email is, as implied by its name, a secure email, which is exactly why we use it.
  • Antivirus
  • Protects from phishing.
  • Send encrypted information.
  • Costly is many users are needed.
  • Interface could be improved.
  • Integration with other software.
From my experience, Cisco Secure Email is well suited when I need to send a secure email to an outside recipient. Cisco Secure Email is great for sending email attachments that contain important information that you want to be encrypted. I have used it for years, and I have not had issues with it. The Cisco Secure Email is less appropriate when you need to provide it for many users, which can become costly.
Score 8 out of 10
Vetted Review
Verified User
We have been using Cisco Secure Email for the whole organization for almost 10 years, it is the main email gateway for both Students and Staff members. approximately 15000 mailboxes are protected, both incoming and outgoing emails are checked for SPAM, viruses, malware, phishing attempts, and fraud emails. A special blacklist is also being used to stop certain unwanted emails especially password stealing scams.
  • Antispam
  • Phishing protection
  • Email Antivirus
  • DLP
  • Graymail prevention
  • Email blocking using header-from address.
  • Spam reporting to Cisco needs to be improved.
  • Clustering: active-active mode would be nice.
  • Creating filters from GIU.
  • Filters samples or database built-in the box would be super nice.
Cisco Secure email perfectly fits a basic email environment; we use Microsoft Exchange Server and Cisco ESA as our smarthost and the default MX record for email receiving. With this setup everything seems to be just fine. However, we encountered some technical issues when we used an external SMTP gateway "" forcing email sending limits per user is not an easy task to do when you use an external gateway. If one user gets infected he/she can simply cause a temp ban from the 3rd party gateway for sending a huge number of bounced emails.
Score 9 out of 10
Vetted Review
Verified User
We deployed Cisco Secure Email a few years back, and it has been amazing when it comes to managing our emails. We are able to send and receive emails securely, and the software makes encryption and decryption of emails easy. With Cisco Secure Email, we no longer have to worry about malware, spamming, and viruses, among other email threats. It's an all-around Email protection software.
  • Makes detecting/blocking email threats easy .
  • It's an affordable solution .
  • Encryption and decryption is easy.
  • It's great when it comes to phishing protection.
  • Everything has worked well so far.
With Cisco Secure Email, we can easily protect our business email system again all manner of attacks. In addition, we are able to send emails securely thanks to encryption and decryption features. It's, therefore, ideal for businesses that value email privacy, such as those in the accounting industry, hospitals, and law firms, among other users.
Basant Gupta | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Cisco Secure Email is a very intelligent and powerful way to protect your emails from phishing attacks, ransomware attacks, [and] spoofing attacks. This is one of the [fastest] and most reliable solutions. Cisco Secure Email provides you with lots of advanced security features, which will protect on-premises and cloud-based emails against cyber attacks. We [have been] using Cisco Secure Email in our [organization] for [the] last 3 years. Email attacks are increasing day by day, so Cisco Secure Email is a necessary tool for every [organization].
  • Spam protection
  • High performance
  • Ransomware protection
  • Threat intelligence
  • Anti-virus
  • Easy to integrate with [Microsoft] Office 365
  • Encrypted emails
  • [The] cost is [a] little bit high as compared [to] other vendors.
  • [The] GUI is [a] little bit [complicated].
Cisco Secure Email is necessary and well suited for every size organization. It offers a bundle of advanced security features, which are fully capable of preventing ransomware, phishing, and [other] cyber attacks on your organization. We can easily integrate them with others' email servers. [It provides] easy management [that is] centralized.
Score 10 out of 10
Vetted Review
Verified User
We value our business email system and that's why we deployed Cisco Secure Email. The software protects our emails from online threats such as viruses, spamming, malware, and phishing. It is very accurate in detecting and blocking threats. The software also comes in handy when it comes to email [end] to end encryption. This feature makes it easy to send and receive emails securely. Cisco Secure Email is deployed company-wide.
  • Very fast in detecting and blocking threats.
  • Very affordable.
  • Makes email encryption easy.
  • Using the software is easy.
  • Sometimes it lags.
All businesses will benefit from Cisco Secure Email this is because all modern businesses face email threats, for instance spamming and malware. With this software, you no longer have to worry about such threats. In addition, you also enjoy end-to-end email encryption.
Score 10 out of 10
Vetted Review
Verified User
We are using Cisco Secure Email across the company, and it has been a great addition to our business, more so when it comes to protecting our business email system. The software offers features such as anti-malware, anti-phishing, among other threat detection capabilities. In addition, Cisco Secure Email comes in handy in encrypting our emails to ensure data privacy. The end to end encryption features are easy to use and require no coding.
  • Great encryption features.
  • Anti-malware.
  • Anti-phishing.
  • Very affordable.
  • Easy to use.
  • Data loss protection.
  • Great threat protection capabilities.
  • Everything works as expected.
For email protection and email encryption, I recommend Cisco Secure Email. It offers some of the best features and is affordable too.
Score 10 out of 10
Vetted Review
Verified User
We have Cisco Secure Email deployment in all departments. The software comes in handy when it comes to email protection from online threats such as malware, viruses, spamming, phishing, among other forms of attacks. In addition, the software also comes equipped with email encryption features for the secure sharing of emails and files. It has been a great addition to our business.
  • Encryption features are easy to use.
  • Best protection against online email attacks.
  • Great User Interface.
  • The software is affordable.
  • No bad experiences with this software.
Cisco Secure Email is great for securing your business email system from all manner of online attacks. The software also works perfectly for businesses looking for email encryption software.
Chandan Singh Rathore | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
We are using Cisco Secure Email for all users in our organization and it's a very fast and reliable solution with lower false positives. It not only checks and blocks suspicious incoming threats, but we also have the option for outbound message control. The best part is that it has dedicated appliances for the on-premise organizations, apart from virtual and the cloud.
  • Spam blocking
  • Low cost
  • Performance
  • Deployment flexibility
  • TAC Support for email security solutions
  • Virtual support for other cloud platforms
  • API integration support
Cisco Email Security is the best of the breed when it comes to securing the user's email. It provides complete advanced malware protection of users' mailboxes against malicious messages and spam. It also has built-in DLP to protect data loss via emails. Additionally, it has integration with Cisco Threat Intelligence to update Signatures (IOCs).
Ankit Singh | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Email security is necessary for every company and needs to use it to block attacks. We have been using Cisco Secure Email (formerly Cisco Email Security) for the last 2 years in our company. Prior to that, someone sent malware via email to my organization and we faced many issues. We decided to implement Cisco Secure Email which has provided us lot of security from phishing attacks.
  • Malware protection
  • Phishing attacks protection
  • Spam protection
  • Email encryption
  • Support office 365
  • Virus protection
  • Too expensive
  • UI is not user friendly
  • Configuration process is complicated
There is a basic need of every organization to protect from any cyber-attacks. Cisco Secure Email (formerly Cisco Email Security) provides us with many advanced features like malware email protection, phishing attacks, virus protection & spam filtering.
Score 8 out of 10
Vetted Review
Verified User
Utilized across the entire organization. Many of our workers are remote and the only method of contact is via email. Having a solution that protects against email attacks is key to maintain a functional remote work force. As we do see much value in having an email security solution.
  • Protection
  • Security
  • Trusted brand
  • Marketing
  • Integration with third party solutions
  • Costs
In our organization and with our partners, email is the vast majority of our communications for doing business from ordering, quoting, and updates. Having an email security solution from a trusted brand is key. Great solution if you use a lot of email communications. Not as important if your company uses other forms of communications.
Robert Marinaro | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
I currently use Cisco Secure Email (formerly Cisco Email Security) to have clients send over/upload documents to me, securely and safely. It is currently being used by my branch and a few others throughout the company but not company-wide and not through our corporate office. We haven't had any issues with the program/secure email yet.
  • Securely sends emails and attachments
  • Gives peace of mind to customers who are providing personal and financial information
  • Easy to use
  • Low speed, lagging, and logging in constantly can be time consuming
  • Spam emails aren't easy to access--takes several steps
This secure email program is very beneficial/helpful for someone working in the mortgage/financial industry. We are constantly obtaining personal and confidential information from clients and this helps put their mind at ease when sending over bank statements and documentation with their name, social security number, and other confidential information.

It would be less appropriate/not needed when sending communication without attachments as we (at my company) do not type/write anyone's confidential information in the body of any emails.
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