Remove spam and malicious email traffic before it enters your network.

Spam is bad for oh so many reasons.

Users are bombarded by a constant onslaught of spam and it's a productivity killer. But that's not the worst of it. Not only does the massive volume of spam chew up email bandwidth without adding any value whatsoever, there are a lot of malicious threats hiding in much of the spam traffic trying to get in. Comodo Dome Antispam provides an array of capabilities designed to prevent unwanted email from entering your network in the first place.

Comodo Dome Antispam is available in three versions: hosted, on-premises, and multi-tenant.

Key capabilities

  • Security and usability: Users can open, execute, and use email attachments as needed without the risk of infection from malicious files.
  • Granular control: Central management of user and group-based email policies enhances security.
  • Flexible deployment: Available in single-tenant, hosted or on-premises, as well as multi-tenant hosted.

Spam accounts for upwards of 65% of all emails sent today. Keeping as much of that unwanted traffic off your network as possible is critical both for cybersecurity and for the sanity of your end users. Comodo Dome Antispam is a threat prevention system that uses a sophisticated array of spam filters, antivirus scanners, and content analysis engines to keep spam out while letting legitimate communications in.


Comodo's patented containment technology protects against malicious attachments without sacrificing user productivity. When an attachment is opened, it runs in the Comodo container while the file is analyzed to determine whether or not it's safe. The container allows it to run just as well as it would normally, but prevents the file from accessing the host's resources or user data so it can't damage or infect the system.

Intelligent filtering

Large volumes of unwanted email create unnecessary traffic loads and make it harder for users to get to the emails that matter. Comodo Dome Antispam filters out unwanted email before it enters the network. Quarantine logs on the management console make it easy to review and take action on filtered emails.

Ease of use

Advanced search options-including search on users or text in sender, receiver, subject, and other fields-make it easy to find emails in the archive. As with quarantined emails, you can take action on archived messages.


Comodo Dome Antispam is available in multi-tenant hosted, hosted, and on-premises.

Features Cloud ASG & ASG for MSP
Try it for free
Dedicated on Cloud
Try it for free
Dedicated on On-Prem
Try it for free
Email archiving and quarantine
Full antispam and antivirus filtering
Set independent policies for incoming and outgoing mail
IPv6 support
SMTP IPS/firewall
Email classification
Antivirus scanning

(Comodo AV and Valkyrie integrations)

Intelligently learns and adapts to new spam techniques
Quickly analyze and compose spam signatures
User authentication

(LDAP, Active Directory, MySQL, LocalDB)

Set email attachment size limits
Multiple administrative tiers and permissions
Syslog and SNMP support
Domain keys antispoofing technology (DKIM)
Reputation network (RN)
Auto backup for remote server
Email-, IP-, or domain-based whitelist/blacklist
Banner and plugin filter
Sent email limitation based on user name and domain
Recipient control through LDAP, Active Directory, MySQL, and local databases
Identification of various connection ports based on recipient's domains
Block invalid email recipients and senders
Prevent DoS attacks
Unlimited number of admins with different authorization levels
Generate domain- and email-based policies
Redirect archived mails to another email address
Periodic quarantine report
Instant controlling of quarantined emails through management interface
Reverse DNS control
Filter sent mails
Reporting in graphical and table formats
Support directly from Comodo support teams
Portal/forums support
Multi-tenant hosting capability
Host your own cloud-based antispam
Dome Secure Web Gateway integration


High-level overview of Comodo Dome Antispam including a list of features.

Download the data sheet

Everything you need to know about working with Comodo Dome Antispam.

Download the admin guide

Everything MSPs need to know about working with Comodo Dome Antispam.

Download the MSP admin guide

How-to tutorials for Comodo Dome Antispam MSP users.

Download the MSP user guide