Feature Comparison

MailEnable™ provides a flexible, extensible and powerful messaging platform that is simple and easy to administer.

New Features

To view recent feature additions please click here

Feature Overview

The following table provides a high level overview of MailEnable™ features to facilitate comparison between product editions and other messaging platforms:

Mail Services





List Server        
Web Administration        
POP Retrieval        
Mobile/Device Sync via CalDav/iCalendar hosting        
Mobile/Device Sync via CardDav hosting        
Server Storage/My Files        
Mobile/Device Sync via SyncML (with WBXML)        
Microsoft Outlook Synchronization (2 Way)        
SMS Connector        
LDAP Service        
MAPI Connectivity (limit of 20 mailboxes)        
MAPI Connectivity (unlimited mailboxes)        

POP Service

APOP authentication        
IP address access control        
Listen on alternate port        
Customize welcome message (for security)        
Allow concurrent user access to single mailbox        

List Server

Add header text to e-mails        
Add footer text to e-mails        
Reply to List        
Force poster to be a member        
Disable a list        
Password protect lists        
List 'Help' commands for users        
Prefix e-mail subjects        
Import users from a text file        
Configure List Reply To Address        
Configurable HTML Headers and Footers        
Configurable subscribe/unsubscribe messages        
Email addresses retrieved via database query        


Drag & drop messages into folders        
Virtual message lists that don't require page selection        
Auto-complete for addressing        
Keyboard shortcuts        
Right click items for actions (e.g. rename, mark as unread)        
Save message as draft        
Read receipts        
New message notification        
Quota usage display        
Compose/view messages in separate windows        
Select the page that is displayed on log-in        
Support for various e-mail character sets        
Multi-lingual (English, French, German, Italian, Spanish)        
Print messages        
View message headers        
Change passwords        
View HTML e-mails        
Compose HTML e-mail messages        
Auto Signature        
Sub folders        
Search by subject, content and sender        
Bottom and right side preview mode        
View images attached to a message in a slideshow        
Download source of message        
Personal Contacts        
Summary page outlining mailbox status        
Appointment messages have their own icon        
Add appointment requests direct to calendar        
Contact Groups        
Import contacts from Outlook & Outlook Express        
Personal Calendar        
Personal Tasks        
Mailbox redirection        
POP Retrieval        
Spell-checker (multi-lingual)        
Mailbox level spam rules        
Password recovery        
Mailbox, Calendar and Contact sharing        
Edit own directory details from within Webmail        
Configure Webmail layout per domain        
Configure Webmail skin per domain        
Global Contacts        
Public Folders        
Mailbox level content filtering        

Web Administration

Manage Mailboxes        
Manage Domains        
Manage Lists        
Manage Groups        
Multiple Language Support (English, French, German, Italian and Spanish)        
Manage multiple post offices via Web Administration        
Search for matching Domains, Mailboxes, etc        
Manage Directory        


IDLE support        
Listen on alternate port        
Public Folders        

Spam, Antivirus and Message Filtering Services

IP address access control        
IP address Whitelisting        
Reverse DNS Blacklisting        
Require PTR DNS record for unauthenticated inbound connections        
Antivirus scanner included (ClamAV)        
Antivirus scanning (via 3rd party scanner)        
Configure global message filters        
Bayesian anti-spam filtering        
Sender Policy Framework (SPF)        
Scripted filtering        
URL Blacklisting        
Reverse DNS Blacklisting per postoffice        
Message filtering (per mailbox)        
Message filtering (per postoffice)        
Antivirus scanning per post office        


Store configuration in MySQL or Microsoft SQL Server        
Migrate configuration data to/from database and MailEnable native storage        

Security & Authentication

Active Directory/Windows Authentication        
POP before SMTP authentication        
SSL for POP, SMTP and IMAP        
CRAM-MD5 authentication for POP, SMTP and IMAP        
NTLM authentication for POP, SMTP and IMAP        


Admin via Microsoft Management Console (MMC)        
Domain renaming        
SMTP forwarding        
Sender domain validation        
Domain level smart hosting        
Message size restriction        
Domain literals        
Disable catch-alls for entire system        
Restrict the number of recipients per inbound message        
Automatically ban IP addresses after too many failures        
Mask IP addresses in e-mail headers        
Validate domain MX records on inbound connection        
Restrict the maximum number of inbound connections        
Restrict the maximum number of outbound connections        
Mark inbound catch-all messages with a custom header        
Limit maximum outbound message size        
Limit maximum inbound message size        
Configure allowed SMTP verbs        
Configure outbound failed message retry schedule        
Enable/disable non-delivery receipts        
Enable/disable delivery delay notifications        
Smart host SMTP connector to downstream SMTP server        
Smart host individual domains to a downstream SMTP server        
SMTP connector smart host authentication        
Block local addresses        
Configure service availability per mailbox        
Configure service availability per post office        
Restrict message throughput per mailbox        
Restrict message throughput per post office        
Remotely administer servers        
Prevent users from entering simple passwords        
Lockout accounts after too many failed login attempts in a short time        
Scheduled message purging        
Quota warning notifications        

Postoffice Level Features

Reverse DNS blacklisting per post office        
Restrict message throughput per post office        
Configure service availability per post office        

Mailbox Level Features

Multiple mailbox addresses        
Auto-responder for mailboxes        
Execute application on e-mail delivery to mailbox        
Mailbox redirection (configure via Webmail)        
Configure service availability per mailbox        
Mailbox spam rules/filtering        
Restrict message throughput per mailbox        

Developer/System Tools and Utilities

Activity monitor        
Diagnostic utility        
Message tracking utility        
System Tray Utility (METray)        
Provider migration utility        
Directory management utility