Email Features

The Axigen Solution: Overview & Architecture

Queue management

  • Queue management

You can inspect the content of the queue, applying filters based on originator, recipient(s), message size, failure reason and so on. Specific actions such as delete, retry or send NDR can be performed on selected items.

  • Virtual queues

Axigen maintains an availability status for each destination domain, avoiding repeated delivery retries to unresponsive domains.

  • Cached queue / Hashed structure

The disk structure of the queue is optimised for fast message access, even if a large number of messages exist in the queue. Axigen also retains memory-cached queue items that are to be delivered soon.

Routing policies

  • Built in DNS Cache
  • Virtual Routing

Thanks to Axigen's virtual routing capabilities, you can assign different outbound IP addresses to each domain.

Log server

  • Multiple log levels
  • Per service log files
  • Remote log collection

All Axigen services are capable of logging either locally or through the network. The logging module will collect log entries received from the network, allowing you to have a dedicated logging server.

Storage

  • Indexed data structure

Axigen ensures an optimal balance between the space used for storing indexes and the time to access information by introducing multiple levels of indexes depending on how often information is accessed.

  • Transactional access

It provides structural integrity for the stored information by performing transactional data access.

  • Expandable storage

You can add subsequent storage units to one domain, thus increasing the available space.

  • Single storage of emails with multiple recipients

Only one copy of a message received by multiple recipients is stored, making Axigen particularly useful for distribution lists and groups.

  • Repairing corrupted accounts

If an account’s data becomes corrupted (due to, for instance, disk failure), Axigen allows you to attempt account data recovery.

  • Storage overload prevention

Overload prevention is ensured by limiting allowed message sizes according to specific policies based on multiple message or connection parameters.

  • Domain Renaming

If the domain name changes and users remain the same, you can simply rename the domain and users can start using the same accounts, but with new email addresses according to the new domain name.

User options

  • Ajax WebMail Interface

The Ajax-powered WebMail interface provides users with a desktop-like experience. Keyboard navigation and shortcuts, drag-and-drop, "Live" email list view, frequent folders, all these intuitive features render email related tasks effective and pain-free.

  • Standard WebMail Interface
  • Mobile WebMail

Users can access their Axigen email account from mobile phones with Internet connectivity to check their emails, compose messages, give others permissions on their folders or download attachments.

  • Personal Organizer

Users can organize their business with effective time-management tools such as personal and public calendars, journal, tasks and notes.

  • Address Book (contacts, groups and distribution lists)

The address book features personal contacts, public contacts (domain-admin defined) and email addresses of all accounts in the same domain. Distribution lists (user-defined groups of contacts and other email addresses) can also be accessed from the address book.

  • RPOP (Remote POP Connections)

Users may retrieve messages from other email services (such as Gmail, Yahoo or any POP3 enabled service) in their Axigen inbox, in specific folders.

  • Rules & filters

Outlook-like rules and filters such as "Move to folder", "Delete", "Forward" and others are available for administrators at server, domain or account level and for users via the Webmail interface or an Axigen Outlook Connector profile.

  • Multiple languages and skins

The Webmail Ajax and Standard interfaces are brandable and localized in over 30 languages. The standard WebMail interface comes with several skins to be used at the end-user's choice.

  • WebMail message printing

WebMail users can take advantage of the built-in print function that will automatically reshape the message in a printer-friendly form before sending it to the printer. Moreover, multiple messages can be selected for printing in a single operation.

  • Out-of-office messages

Personalized auto-reply messages can be defined by the user from Axigen's WebMail, selectively for internal (local domain) or external senders.

  • Account aliases
  • Individual blacklists

Each user may define his/her own list of email addresses from which messages will be automatically deleted (moved to Trash).

  • Personalized user signature
  • Access the same PIM via WebMail or Outlook

The same Contacts and Calendar (Events, Tasks, Notes and Journal) entries are viewable from both an Axigen Outlook Connector and WebMail interface.

  • Overquota notifications

Users are notified when the mailbox usage is close to quota or when the quota is exceeded via messages and WebMail pop-ups.

  • Request temporary email addresses (aliases)

Users can request a one or more random temporary aliases for use when subscribing to public sites, in order to avoid spam. Temporary email addresses expire after the time period defined by you.

Security / AntiVirus / AntiSpam

  • Kaspersky AntiVirus (add-on)
  • Kaspersky AntiSpam (add-on)
  • AVG Antivirus and AntiSpam for Linux/FreeBSD (add-on)
  • Commtouch Real Time AntiSpam Protection (add-on)
  • Content filtering (score based) & Bayesian filtering (through the included SpamAssasin)
  • Direct integration with AntiVirus & AntiSpam applications

Native connectors for AV / AS filtering for selected applications are available, providing faster and more controllable filtering (you can define specific actions on suspicious messages or on messages that cannot be cleaned).

  • Integration through MILTER with AntiVirus & AntiSpam applications

Axigen provides a Milter interface, thus allowing virtually any Milter-capable anti-virus or anti-spam application to be used.

  • Interface for anti-virus, anti-spam, third party, custom made filters

Axigen's Filtering Interface allows interoperability with an external, third party application, such as anti-virus, anti-spam, content filtering or billing.

  • Server, domain and user level filters

Specific sets of filters can be configured for each domain or even for selected accounts in order to differentiate security policies.

  • Anti-Impersonation

You can enforce user authentication on message submission and verify that the sender header matches the authentication credentials preventing impersonation attempts from local accounts.

  • Access Control / Whitelisting / Blacklisting / Greylisting
  • Email addresses whitelisting / blacklisting
  • Country Filtering

This filtering helps you determine geographic locations based on IPs and create rules accordingly, such as banning or allowing emails sent from the selected countries.

  • Restrict maximum simultaneous connections

You can restrict the total number of simultaneous connections that a service may accept and/or the maximum number of simultaneous connection accepted from the same IP address, in order to avoid attacks from a single IP. Additionally, privileged IP address groups (trusted servers) may have different connection limits policies.

  • Restrict maximum incoming connections rate

Similarly, you can restrict the total number of connection per time unit that a service may accept and/or the maximum number of connection per time unit accepted from the same IP address in order to avoid attacks from a single IP. Additionally, privileged IP address groups (trusted servers) may have different connection rate limits policies.

  • Selectively restrict maximum messages size

The server can be configured to accept different maximum messages sizes based on sender/sender domain, recipient/recipient domain, remote IP address, connection security, authentication level and other message or connection related parameters, ensuring a flexible protection for the queue and the storage. Privileged users may have extended rights.

  • SMTP peer reverse DNS lookup validation
  • Originating domain MX validation
  • Sender validation - SPF (Sender Policy Framework)

Axigen implements a standard-based SPF verification module for sender validation (if the remote domain is properly configured with SPF information).

  • Open Relay Blocking (ESMTP APOP, AUTH login, CRAM-MD5, PLAIN authentication)
  • Message integrity validation - DomainKeys compliant

The messages’ integrity may be checked if the originating server used DomainKeys to sign them. Locally-originated messages may be signed by Axigen to allow validation by DomainKeys-compliant remote servers (Yahoo associates a higher spam score to unsigned messages).

  • Encryption policies (SSL / TLS)

Axigen’s encryption methods guarantee secure data transmission over networks (attempt or force connection level security).

  • Authentication (Normal login, PLAIN, LOGIN, CRAM-MD5, DIGEST-MD5, GSSAPI)

The Axigen mail server can be instructed to accept only connections/messages from authenticated entities (specific sources or destination domains).

  • SASL authentication support
  • Security policies

Axigen can support corporate governance rules or different service levels for users.

  • Secure passwords enforcement

You can define password strength policies (minimum password length, required sets of characters and so on), restricting the users from setting simple passwords.

  • Identity Confirmation

Email SMTP server

  • Extended SMTP support
  • SMTP routing
  • Activity logging
  • Encryption support
  • Authentication support
  • Access Control / Whitelisting / Blacklisting

You can define IP access control rules (allow/deny) on POP3 service level. If more granular access control is required, rules can also be defined on each listener of the POP3 service. Rules may refer to unique IPs, IP ranges or IP/Netmasks.

  • Usage restrictions

You may selectively allow specific users to submit messages via SMTP, alternatively or in conjunction with WebMail-only usage.

  • Connection control

The SMTP service supports specific simultaneous connections and connection rates limits, allowing you to adapt to the specific SMTP usage scenarios.

  • Message acceptance policies

Axigen can be configured to reject messages sent by impersonated users (unauthenticated users or messages where the sender header differs from the authentication credentials), messages coming from blacklisted IPs, messages that fail SPF or DomainKeys verification etc. and similarly, to accept messages coming from trusted sources or through secure connections. You can selectively restrict maximum message size, maximum number of relay servers an incoming message passed through etc.

  • Message delivery retries

The maximum number of delivery retries and the delivery retry intervals can be easily controlled. You can define the subject and body of the temporary or final non-delivery reports per server or selectively per sender or recipient domain.

  • Routing policies

You can define outbound routes (relay servers), globally or per destination domain as well as outbound connection security parameters (SSL / TLS connections, SMTP authentication etc.).

  • Message appender
  • Management of incorrectly folded email headers

Axigen can be configured to accept and fix incorrectly formatted inbound messages (having malformed headers).

POP email acces

  • APOP authentication
  • Activity logging
  • Encryption support
  • Authentication support
  • Access Control; IP Whitelisting / Blacklisting

IP access control rules (allow/deny) can be defined on POP3 service level. If more granular access control is required, rules can also be defined on each listener of the POP3 service. Rules may refer to unique IPs, IP ranges or IP/Netmasks.

  • Usage restrictions

You can selectively allow specific users to retrieve messages via POP3, alternatively or in conjunction with WebMail-only usage.

  • Connection control

The POP3 service supports specific simultaneous connections and connection rates limits, allowing you to adapt to the specific POP3 usage scenarios.

  • Sub-folder support

By extending the standard POP3 protocol, Axigen’s POP3 service allows users to access subfolders by logging in with "user+subfolder" instead of plain "user".

IMAP email access

  • IDLE Support

Axigen will notify IMAP clients when new messages arrive in specified folders, avoiding repeated polling that overloads the network.

  • Activity logging
  • Encryption support
  • Authentication support
  • Access control; IP Whitelisting / Blacklisting

IP access control rules (allow / deny) can be defined on IMAP service level. If more granular access control is required, rules can also be defined on each listener of the IMAP service. Rules may refer to unique IPs, IP ranges or IP / Netmasks.

  • Usage restrictions

You can selectively allow specific users to retrieve messages via IMAP, alternatively or in conjunction with WebMail-only usage.

  • Connection control

The IMAP service supports specific simultaneous connections and connection rates limits, allowing you to adapt to the specific IMAP usage scenarios.

  • Public Folders
  • Internationalized search

IMAP clients can use special local characters when searching messages.

WebMail access

  • Drag-and-drop functionality
  • Dynamic loading / "Refreshless" updates
  • Keyboard navigation and shortcuts
  • Smart attachment management
  • Export/Import contacts
  • Service levels for basic and premium users

You can offer different services for specific accounts (access to WebMail and mobility, exposure to advertising etc.) or set restrictions (maximum number of attachments, maximum attachment size, maximum number of recipients, etc), thus differentiating between basic and premium users.

  • Built-in HTTP server

The WebMail interface is provided through Axigen’s proprietary HTTP server, increasing the overall security and reliability of the system. Moreover, data is accessed directly from the storage and messages are injected directly in the queue, resulting in smaller response times for the WebMail service.

  • Re-branding support through server-side templates

The graphic design and general layout of the WebMail interface can be modified to accommodate the specific customer’s brand and usage requirements.

  • Activity logging
  • Encryption support
  • Access control; IP Whitelisting / Blacklisting

IP access control rules (allow / deny) can be defined on WebMail service level. If more granular access control is required, rules can also be defined on each listener of the WebMail service. Rules may refer to unique IPs, IP ranges or IP/Netmasks.

  • Usage restrictions

You can selectively allow specific users to access the mailbox through the WebMail interface, alternatively or in conjunction with IMAP/POP3 usage.

  • Connection control

The WebMail service supports specific simultaneous connections and connection rates limits, allowing you to adapt to the specific WebMail usage scenarios.

  • Available in over 30 languages
  • Multiple skins

The user may choose any of the predefined skins, changing the look and feel of the WebMail interface.

  • Multi-level folder management
  • Virtual domains support
  • Domain specific WebMail templates
  • Read receipts
  • Rules & filters (Outlook-like)
  • Out-of-office automatic replies

Personalized auto-reply messages can be defined by the user from Axigen's WebMail, selectively for internal (local domain) or external senders.

  • Internationalized search

Users can type special local characters when searching messages.

  • Preview pane
  • Public folders
  • Personalized user signature
  • User-level blacklist

Each user may define his/her own list of email addresses from which messages will be automatically deleted.

  • RPOP

Users may retrieve messages from other email services (such as Gmail, Yahoo or any POP3 enabled service) in their Axigen inbox, in specific folders.

  • RPOP templates for Yahoo! and Gmail

There are simplified RPOP settings for retrieving messages from the users’ Yahoo! or Gmail accounts in their Axigen inbox.

  • Image attachments viewer

Image attachments can be browsed directly in the preview pane of the WebMail interface.

  • HTML filtering

Axigen eliminates malware contained in HTML messages by filtering hidden scripts.

  • Overquota notifications

Users are notified when mailbox usage is close to quota or when the quota is exceeded via messages and WebMail pop-ups.

  • HTML composer

Users have available rich-text styles such as bold, italic, underline, strikeout, different font faces and font sizes, colors and so on when composing or replying to email messages.

  • Address Book

Personal contacts, public contacts (domain-admin defined) and email addresses of the accounts in the same domain are available in the address book.

Shared folders & permissions

  • Shared folders

Users can share their personal folders by granting permissions (read, write, delete etc.) or predefined sets of permissions (viewer, contributor, editor, master) to other users/groups in the same domain.

  • Permissions on calendar, contacts, tasks, notes and journal folders

Special folders can also be shared to other users by setting appropriate permissions.

  • Permissions on public folders

The postmaster can control access to public folders, restricting groups or specific users from performing actions on defined public folders (read, insert or delete messages). Public folder permissions also facilitate allocation of shared resources such as meeting rooms or projectors by creating a dedicated public calendar folder

  • Permission inheritance over the folder tree

A set of permissions applied to one folder may be inherited to all subfolders (all subsequent changes will automatically apply to the entire structure). Additionally, exceptions to this set of permissions may be defined to a specific subfolder or even an entire branch. For instance, one user can grant full permissions on his mailbox to a co-worker except for one "secret" folder

  • Permissions on group hierarchy

A user group may be granted permissions on specific folders. Every new added member inherits the complete permissions set. Any change in the permission set for the group is automatically applied to all members. Additionally, exceptions may be defined for specific users or groups. For instance, you can apply a set of permissions to the "Sales" group - each new member will have the same permissions, and additional permissions can be added to the team leader.

  • Send emails on behalf of other users

A user can delegate the right to send messages in his name to a co-worker in the same domain. If anti-impersonation is enabled, Axigen will forbid sending emails as another user (altering the "From" header). Granting the "Send mail as" permission will allow the co-worker to send emails on behalf of the user via the Webmail interface or an Axigen Outlook Connector profile, still maintaining the anti-impersonation enforcement to the whole server.

  • Availability information from other users

When requesting a meeting, users can consult the calendar of other attendees in order to check their availability (free/busy status).

  • Domain Address Book restrictions

The postmaster of a domain is able to restrict the access to the Domain Address Book for a specific set of users, if needed.

Outlook Connector

Offline mode
While performing their daily tasks, users no longer depend on being connected to the network in order to access their messages, contacts, calendars or tasks from the Microsoft Outlook email client. All changes performed in offline mode are automatically synchronized with the Axigen mail server once the access to Internet is restored, while also enabling the sending of messages from the Outbox folder.

  • Improved search and mail access speed
  • Read receipts
  • Per-folder synchronization levels
  • Public folders
  • Calendar
  • Meeting requests
  • Tasks, assign tasks
  • Notes
  • Journal
  • Address Book

Personal contacts, public contacts (domain-admin defined) and email addresses of the accounts in the same domain are available in the address book.

  • UNICODE support
  • Search folders

Users can create virtual folders containing messages that match a specific search criterion ("large messages", "unread messages", "messages sent only to me" etc.).

  • Notification messages

The Axigen Outlook Connector can show informational balloons regarding its activity.

  • Branding support

On demand, companies and SPs can get the Axigen Outlook Connector branded with their details.

Mailing list server

  • Email based subscribing and unsubscribing
  • Search folders

Users can create private or public mailing lists by requiring subscription approval or allowing unapproved members.

  • Posting moderation
  • Activity logging
  • Configure list subject prefix
  • Expandable templates for body begin, body end
  • Access to mailing list archive through WebMail

The mailing list owner can login using the WebMail interface in order to perform tasks like message list moderation, review mailing list archive and others.

Clustering support

  • Multi-tier setup (front-end & back-end)

You can separate services (such as SMTP / IMAP / POP3 etc.) on different tiers to enhance the overall security of the system and to provide service high availability.

  • LDAP authentication and routing

Account passwords and routing information can be stored in a central point to support the multi-tier setup.

  • SMTP routing to back-end

Messages received by the front-end tier are delivered to the appropriate back-end server (depending on LDAP recipient information).

  • POP3 / IMAP WebMail proxy

You can distribute mailboxes on multiple Axigen back-end servers and use separate front-end proxies to route POP3 / IMAP / WebMail connections to the appropriate back-end server.

  • RH Cluster Suite integration

Upgrade

  • Seamless upgrade from previous versions

The storage content is automatically upgraded from the previous version on the first run.

Migration tools (IMAP based)

  • Manual account migration over IMAP
  • Automatic, transparent accounts & messages migration

Axigen provides a dedicated engine that ensures an automatic and transparent migration process. Thus, all domains, accounts and mailboxes from any legacy mail server can be easily migrated to Axigen via IMAP, without service interruptions.


Backup & restore

  • Online backup of accounts and messages

You can download domain configuration, accounts and messages using Axigen’s built-in backup and restore service. Thus, domain-level, account level or even folder-level data backups can be performed.

  • Full or partial restore

Using Axigen’s built-in backup and restore module, you can restore full domains’ information, a specific account or even a specific folder of an account.

  • Delegated backup

Delegated administrators may download backups of their domains.

Server infrastructure features

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

You can avail of centralized management of the configuration for all the services through the WebAdmin or CLI. Services inter-operate natively, ensuring faster access and proper resource-access locking. Thus, simultaneous access via different services may be performed without risking data corruption.

  • MPA (MultiPlatform Architecture)
  • Multi-threaded mail engine
  • Allow concurrent user access to resources
  • RFC compliance

The Axigen services are implemented in conformance with industry standards (RFC, Internet drafts) providing a higher degree of interoperability with clients and other email servers.

Integration

  • API for external filtering

Full documentation is provided for Axigen’s external filtering interface, allowing customers to integrate their own external filtering modules with the Axigen server. Thus, interoperability with third party applications such as content filtering or billing systems can be obtained.

  • Templates for WebMail interface customization

Axigen’s WebMail interface is dynamically generated using HSP server-side templates. Customers may extend the provided templates design with a completely new template set obtaining the desired WebMail interface look and feel.

  • External LDAP authentication
  • External Active Directory authentication

All Axigen services can use Kerberos tickets generated by Active Directory to perform user authorization, provided the mail client supports it (e.g. Mozilla Thunderbird, Novell Evolution).

OpenLDAP / Active Directory integration

  • Accounts & groups synchronization
  • LDAP authentication
  • LDAP based routing