Current Feature Overview
The following table provides a high level overview of MailEnable features to facilitate comparison between products and with other messaging platforms:

Professional Enterprise Mail Services   POP Yes Yes   SMTP Yes Yes   POP Retrieval Yes Yes   HTTPMail Yes Yes   IMAP Yes Yes   Web mail Yes Yes POP Service   Customize welcome message (for security) Yes Yes   Allow concurrent user access to single mailbox Yes Yes   APOP authentication Yes Yes   IP address access control Yes Yes   Listen on alternate port Yes Yes IMAP   Public folders - Yes   IDLE support Yes Yes   Listen on alternate port Yes Yes HTTPMail   Public folders Yes Yes Spam, antivirus and message filtering services   Message filtering (per mailbox) - Yes   Message filtering (per postoffice) - Yes   Greylisting Yes Yes   Reverse DNS blacklisting per post office - Yes   Antivirus scanning per post office - Yes   Antivirus scanning (via 3rd party scanner) Yes Yes   Configure global message filters Yes Yes   Bayesian anti-spam filtering Yes Yes   SPF (Sender Policy Framework) Yes Yes   Scripted filtering Yes Yes   URL Blacklisting Yes Yes   IP address access control Yes Yes   IP address whitelisting Yes Yes   Reverse DNS blacklisting Yes Yes   Require Ptr DNS record for unauthenticated inbound connections Yes Yes Scalability   Store configuration in MySQL or Microsoft SQL Server - Yes   Migrate configuration data to/from database and MailEnable native storage - Yes   Clustering - Yes Security and authentication   SSL for POP, SMTP and IMAP Yes Yes   CRAM-MD5 authentication for POP, SMTP and IMAP Yes Yes   NTLM authentication for POP, SMTP and IMAP Yes Yes   Active Directory/Windows Authentication Yes Yes   POP before SMTP authentication Yes Yes Administration   Configure service availability per mailbox - Yes   Configure service availability per post office - Yes   Restrict message throughput per mailbox - Yes   Restrict message throughput per post office - Yes   Remotely administer servers - Yes   Prevent users from entering simple passwords - Yes   Lockout accounts after too many failed login attempts in a short time - Yes   Scheduled message purging - Yes   Quota warning notifications - Yes   Administration via Microsoft Management Console (MMC) Yes Yes   Domain renaming Yes Yes   SMTP forwarding Yes Yes   Sender domain validation Yes Yes   Internal and external IP validation Yes Yes   Domain level smart hosting Yes Yes   Message size restriction Yes Yes   Domain literals Yes Yes   Disable catch-alls for entire system Yes Yes   Restrict the number of recipients per inbound message Yes Yes   Automatically ban IP addresses after too many failures Yes Yes   Mask IP addresses in e-mail headers Yes Yes   Validate domain MX records on inbound connection Yes Yes   Restrict the maximum number of inbound connections Yes Yes   Restrict the maximum number of outbound connections Yes Yes   Mark inbound catch-all messages with a custom header Yes Yes   Limit maximum outbound message size Yes Yes   Limit maximum inbound message size Yes Yes   Configure allowed SMTP verbs Yes Yes   Configure outbound failed message retry schedule Yes Yes   Enable/disable non-delivery receipts Yes Yes   Enable/disable delivery delay notifications Yes Yes   Smart host SMTP connector to downstream SMTP server Yes Yes   Smart host individual domains to a downstream SMTP server Yes Yes   SMTP connector smart host authentication Yes Yes   Block local addresses Yes Yes Post office level features   Reverse DNS blacklisting per post office - Yes   Restrict message throughput per post office - Yes   Configure service availability per post office - Yes   Groups Yes Yes   Quota management Yes Yes Mailbox level features   Configure service availability per mailbox - Yes   Mailbox spam rules/filtering - Yes   Restrict message throughput per mailbox - Yes   Mailbox redirection (configure via web mail) Yes Yes   Multiple mailbox addresses Yes Yes   Auto-responder for mailboxes Yes Yes   Execute application on e-mail delivery to mailbox Yes Yes Developer/System Tools and Utilities   Provider migration utility - Yes   Directory management utility - Yes   System tray Utility (MEtray) Yes Yes   Activity monitor Yes Yes   Diagnostic utility Yes Yes   Message tracking utility Yes Yes List Server   Headers and footers can be HTML Yes Yes   Moderated Yes Yes   Add header text to e-mails Yes Yes   Add footer text to e-mails Yes Yes   Subscribe Yes Yes   Unsubscribe Yes Yes   Reply to List Yes Yes   Force poster to be a member Yes Yes   Disable a list Yes Yes   Password protect lists Yes Yes   List 'Help' commands for users Yes Yes   Activity logging Yes Yes   Prefix e-mail subjects Yes Yes   Import users from a text file Yes Yes   Configure List Reply To Address Yes Yes Web Administration   Manage multiple post offices via web administration - Yes   Search for matching post offices, domains, mailboxes, etc - Yes   Manage directory - Yes   Manage mailboxes Yes Yes   Manage domains Yes Yes   Manage lists Yes Yes   Manage groups Yes Yes   Multiple Language Support (English, French, German, Italian and Spanish)  Yes Yes   Web administration skins Yes Yes   .NET and ASP web administration Yes Yes Web Mail   Drag & drop messages into folders Yes Yes   Virtual message lists that don't require page selection Yes Yes   Auto-complete for addressing Yes Yes   Keyboard shortcuts Yes Yes   Load on demand AJAX tree view on left hand pane Yes Yes   Right click items for actions (e.g. rename, mark as unread) Yes Yes   Multi-select items in virtual list without changing pages Yes Yes   Summary page outlining mailbox status Yes Yes   Select the page that is displayed on log-in Yes Yes   Task lists Yes Yes   Mailbox, calendar and contact sharing - Yes   Enhanced public folder support - Yes   Bottom and right side preview mode Yes Yes   Appointment messages have their own icon Yes Yes   View images attached to a message in a slideshow Yes Yes   Download source of message Yes Yes   Add appointment requests direct to calendar Yes Yes   Read receipts Yes Yes   Contact groups Yes Yes   Edit contact directory details from within web mail - Yes   Configure web mail layout per domain - Yes   Configure web mail skin per domain - Yes   Save message as draft Yes Yes   Import contacts from Outlook and Outlook Express Yes Yes   Configure personal filters - Yes   Change passwords - Yes   Global contacts - Yes   Public folders - Yes   Sub folders Yes Yes   Mailbox spam rules/filtering - Yes   Personal calendar Yes Yes   Personal tasks Yes Yes   New message notification Yes Yes   Quota usage display Yes Yes   Compose/view messages in separate windows Yes Yes   Skins and re-br /anding Yes Yes   Personal contacts Yes Yes   View HTML e-mails Yes Yes   Compose HTML e-mail messages Yes Yes   Auto signature Yes Yes   Mailbox redirection Yes Yes   POP Retrieval Yes Yes   Support for various e-mail character sets Yes Yes   Multi-lingual (English, French, German, Italian, Spanish) Yes Yes   Print messages Yes Yes   View message headers Yes Yes   Spell-checker (multi-lingual) Yes Yes   Search by subject, content and sender Yes Yes

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