Product Features

In case you're looking for something in particular...

Administration (Web Based, Command Line)

Remote server administration via WebAdmin

Web based, secure connection, proprietary language

Automated operations

Through CLI (Command Line Interface)

Domain / server / cluster email distribution

Services availability per account

SMTP / IMAP / POP / WebMail

User groups

Random password generation for new accounts

Secure password enforcement

Automatic creation of accounts from LDAP

Overquota notifications

Configure usage notification thresholds via email or webmail popups

Delay delivery of selected messages

"Move to quarantine" action


For SMTP, POP3, IMAP, ActiveSync, CalDAV & CardDAV

Automatic Trash & Spam folder cleanup

Automatically purge old messages in Spam or Trash

Let's Encrypt certificates

CLI & WebAdmin generation
and auto-renewal

WebAdmin branding

Brand your WebAdmin interface

SSL certificates management

Generate CSRs, upload certs, create and renew self-signed or Let's Encrypt certificates

Persistent WebAdmin sessions

Axigen's WebAdmin sessions are persistent cross-restart

Account Classes

Configuration groups

Different service levels for basic and premium users

Sending / receiving restrictions

Restrict email sending / receiving to specific email addresses

Dynamic configuration inheritance

Queue Management – Smart Processing

Queue Management

Queue filtering and actions on selected items

Virtual queues

Separate queues for each remote domain

Cached queue / Hashed structure

Retry policies

Built-in TNEF decoder

Decoding of TNEF messages through the
built-in Axigen TNEF Decoder

Routing Policies - Smart Processing

Virtual routing

Assign different outbound IP addresses to each domain

Built in DNS cache

Reporting and Statistics

Server statistics

Traffic statistics

Data collection and export

Graphic charts

Over 100 customizable charts for all monitored parameters

Detailed storage reports

SNMP service

Log Server

Multiple log levels

Per service log files

Remote log collection


Indexed data structure

Transactional access

Expandable storage

Single storage of emails with multiple recipients

Repair corrupted accounts

Storage overload prevention

Domain renaming

Storage auto-compacting

Container level auto-compacting in server idle time

User Options

HTML5 WebMail interface

Webmail client with desktop-like usability

Standard WebMail interface

Simple interface for legacy browsers and slower internet connections

Mobile WebMail interface

Email access from mobile phones

Personal organizer

Calendar, Tasks, Notes

Address book

Contacts, Groups, and Distribution Lists
Personal, public and domain


Remote POP Connections

Rules and filters

Multiple languages and skins

Supported by the WebMail and the Standard WebMail interfaces

Out-of-office messages

Account aliases

Individual blacklists

Personalized signatures

Access the same PIM via WebMail or Outlook

Overquota notifications

Receive messages when mailbox is close to quota

Request temporary email addresses (aliases)


For SMTP, POP3, IMAP, ActiveSync, CalDAV & CardDAV

Labels support new

WebMail labels and IMAP permanent flags support

Mobility & Sync

Push email and PIM synchronization

Microsoft® Exchange ActiveSync® Connector

Contacts sync via CardDAV

Supports Android, iOS, macOS & Windows

Calendar sync via CalDAV

Supports Android, iOS, macOS & Windows

Mobile WebMail

Email access from mobile phones

Security / AntiVirus / AntiSpam

Axigen AntiVirus & AntiSpam

Premium security add-on —
Powered by Cyren

Content filtering (score based) and Bayesian filtering (through the included SpamAssassin)

Integration through MILTER with third-party AntiVirus and AntiSpam applications

Support for combining multiple antivirus products

Server, domain and user level filters


Authenticated senders

Access Control / Whitelisting / Blacklisting / Greylisting

Email addresses whitelisting / blacklisting

Identity Confirmation

Country Filtering

Filter emails coming based on sender country, using an IP-to-country database

Restrict maximum simultaneous connections

For IP groups

Selectively restrict maximum messages size

Based on message or connection parameters*

SMTP peer reverse DNS lookup validation

Originating domain MX validation

Open relay blocking

ESMTP APOP, AUTH login, CRAM-MD5, PLAIN authentication

Sender validation

SPF (Sender Policy Framework)

Message integrity validation

DomainKeys compliant

Encryption policies (SSL / TLS)

Attempt or force connection level security


Authentication for specific sources or destination domains

SASL authentication support

Security policies

Support corporate governance rules or different service levels for users

Secure password enforcement

Attachments filtering

Block messages containing attachments with specific extensions (e.g. executable files), or just remove their attachments

Let's Encrypt certificates

CLI & WebAdmin generation
and auto-renewal

Email SMTP Server

Extended SMTP support

SMTP routing

Activity logging

Encryption support

Authentication support

Access control / Whitelisting / Blacklisting

Usage restrictions

Connection control

Message acceptance policies

Restrict the size, number of recipients, or received headers per email message

Processing and routing policies

Security policies

Message appender

Management of incorrectly folded email headers

APOP authentication

Activity logging

Management of incorrectly folded email headers

POP3 Email Access

APOP authentication

Activity logging

Encryption support

Authentication support

Access Control
IP Whitelisting / Blacklisting

Usage restrictions

Connection control

Sub-folder support

IMAP email access

IDLE support

Activity logging

Encryption support

Authentication support

Access Control
IP Whitelisting / Blacklisting

Usage restrictions

Connection control

Public folders

Internationalized search

WebMail Access

Ajax Webmail right-to-left (RTL) support

Export / import contacts

Drag-and-drop functionality

Dynamic loading / "Refreshless" updates

Keyboard navigation and shortcuts

Smart attachment management

Service levels for basic and premium users

Built-in HTTP server

Re-branding support through server-side templates

Activity logging

Encryption support

GSSAPI authentication for WebMail

Access Control
IP Whitelisting / Blacklisting

Usage restrictions

Connection control

Available in 29+ languages

Multiple themes support

Folder management

Domain specific WebMail templates

Rules and filters

Read receipts

Personalized user signature

Define and use multiple signatures

Out-of-office automatic replies

Internationalized search

Preview pane

Horizontal / vertical views available

Public folders

User-level whitelist

User-level blacklist


Remote POP3 connections

RPOP templates for Yahoo! Mail, Google Mail, and

Dark mode new

Dark mode support with optional automatic switch

HTML filter

Eliminate malware contained in HTML messsages

Overquota notifications

Using popups and/or messages

User archive

One-click archive according to the user's archiving preferences

Undo specific actions

Applies for Move, Copy, Delete, Archive, and Mark as spam

HTML composer updated

Compose emails with various formatting; add inline images, emojis, or @mentions

WebMail branding

Branding support for all WebMail interfaces — globally & per domain

Delivery receipts

Request & send delivery receipts

Conversation view new

Email grouping by conversation

Web Personal Organizer

Calendar, Tasks, Notes

Meeting requests

Assign tasks

CalDAV: access to calendar and tasks

Multiple reminders for calendar events

Address book

Domain contacts / public contacts / personal contacts

CalDAV: multiple calendars & calendar sharing

WebMail: Gregorian & Persian calendar support

WebMail: multiple calendars & multi-day events support

Shared Folders and Permissions

Shared folders

Permissions on Calendar, Contacts, Tasks, and Notes folders

Permissions on public folders

Send emails on behalf of other users

In addition, when using the WebMail, users can even choose the sender from a list of available "From" email addresses

Availability (free / busy) information from other users

Mailing List Server

Email based subscription and unsubscription

Approved / unapproved subscriptions

Posting moderation

Activity logging

Configure list subject prefix

Expandable templates for body begin, body end

Automated list interaction

Access to mailing list archive through WebMail

Clustering Support

Multi-tier setup (front-end and back-end)

LDAP authentication and routing

SMTP routing to back-end

POP3 / IMAP / WebMail Proxy

RH Cluster Suite integration

Cloud Native Kubernetes cluster deployment new

Learn more on how to deploy an Axigen cluster on K8S with AxiHelm

HAProxy Protocol support new

Propagate client IPs using an HAProxy Protocol aware load-balancer

Cluster Auto-join new

Have new nodes automatically join your cluster via an existing node

Cluster configuration using hostnames or IPs new

Delegated Administration

Multiple administrative users

Groups for simplified management

Server level permissions

Domain / Subdomain level permissions

Domain / Subdomain level restrictions

Limit maximum number of users, maximum quota per user, etc.

Delegated backup

Delegated administrators may download backups of their domains


Seamless upgrade from previous versions

Storage content is automatically upgraded from the previous version on the first run

Migration Tools (IMAP based)

Manual account migration over IMAP

Automatic & transparent email migration

From legacy IMAP servers

Calendars / Tasks / Notes / Contacts migration

Migrate PIM data from Kerio Connect or Communigate Pro

Backup and Restore

Online backup of the accounts and messages

Full or partial restore

Restore only one domain, account or even email folder

Delegated backup

Delegated administrators may download backups of their domains

Server Infrastructure Features

Innovative architecture with integrated services (SMTP / IMAP / POP / WebMail)

MPA (MultiPlatform Architecture)

Multi-threaded mail engine

IPv6 support

Concurrent user access to resources

RFC compliance

SNI (Server Name Indication) support

Multiple SSL enabled virtual hosts for the WebMail service, each on with its own certificate, on a single IP

Authentication / Authorization

OpenLDAP / Active Directory

LDAP authentication

LDAP based routing

Accounts and groups synchronization

OAuth 2.0 / OpenID Connect new

OAuth 2.0 / OpenID Connect authentication support for WebMail and the Mailbox API;
see how to set up OAuth / OpenID Connect auth for WebMail, SMTP, POP3, and IMAP


API for external filtering

Templates for WebMail interface customization

Mailbox API new

Build your own clients or integrate with an existing app via Axigen's Mailbox API

*) Message and connection parameters for security policies: Originating host's IP, ports, greeting; Originator's email address, domain or username; Recipient email address, routing information; Message size, headers, number of recipients; Connection security level (SSL / non-SSL); Authentication information; Session statistics (total mails sent, total size); SPF interrogation result; etc.