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| Feature |
Standard |
Professional |
Enterprise |
| Mail Services |
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| POP |
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| SMTP |
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| List server |
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| Web mail |
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| Web administration |
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| POP Retrieval |
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| HTTPMail |
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| IMAP |
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| Mobile/Device Sync via CalDav/iCalendar hosting |
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| Mobile/Device Sync via SyncML (with WBXML) |
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| Micosoft Outlook Synchronization (2 Way) |
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| SMS Connector |
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| Server Storage/My Files |
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| LDAP Service |
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| MAPI Connectivity |
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| POP Service |
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| APOP authentication |
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| IP address access control |
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| Listen on alternate port |
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| Customize welcome message (for security) |
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| Allow concurrent user access to single mailbox |
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| IMAP |
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| IDLE support |
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| Listen on alternate port |
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| Public folders |
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| HTTPMail |
| Public folders |
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| Spam, antivirus and message filtering services |
| IP address access control |
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| IP address whitelisting |
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| Reverse DNS blacklisting |
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| Require PTR DNS record for unauthenticated inbound connections |
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| Greylisting |
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| Antivirus scanning (via 3rd party scanner) |
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| Configure global message filters |
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| Bayesian anti-spam filtering |
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| SPF (Sender Policy Framework) |
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| Scripted filtering |
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| URL Blacklisting |
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| DKIM |
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| Reverse DNS blacklisting per post office |
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| Message filtering (per mailbox) |
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| Message filtering (per postoffice) |
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| Antivirus scanning per post office |
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| Scalability |
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| Store configuration in MySQL or Microsoft SQL Server |
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| Migrate configuration data to/from database and MailEnable native storage |
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| Clustering |
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| Security and authentication |
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| Active Directory/Windows Authentication |
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| POP before SMTP authentication |
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| SSL for POP, SMTP and IMAP |
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| CRAM-MD5 authentication for POP, SMTP and IMAP |
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| NTLM authentication for POP, SMTP and IMAP |
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| Administration |
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| Administration via Microsoft Management Console (MMC) |
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| Domain renaming |
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| SMTP forwarding |
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| Sender domain validation |
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| Internal and external IP validation |
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| Domain level smart hosting |
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| Message size restriction |
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| Domain literals |
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| Disable catch-alls for entire system |
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| Restrict the number of recipients per inbound message |
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| Automatically ban IP addresses after too many failures |
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| Mask IP addresses in e-mail headers |
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| Validate domain MX records on inbound connection |
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| Restrict the maximum number of inbound connections |
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| Restrict the maximum number of outbound connections |
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| Mark inbound catch-all messages with a custom header |
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| Limit maximum outbound message size |
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| Limit maximum inbound message size |
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| Configure allowed SMTP verbs |
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| Configure outbound failed message retry schedule |
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| Enable/disable non-delivery receipts |
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| Enable/disable delivery delay notifications |
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| Smart host SMTP connector to downstream SMTP server |
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| Smart host individual domains to a downstream SMTP server |
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| SMTP connector smart host authentication |
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| Block local addresses |
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| Configure service availability per mailbox |
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| Configure service availability per post office |
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| Restrict message throughput per mailbox |
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| Restrict message throughput per post office |
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| Remotely administer servers |
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| Prevent users from entering simple passwords |
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| Lockout accounts after too many failed login attempts in a short time |
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| Scheduled message purging |
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| Quota warning notifications |
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| Post office level features |
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| Groups |
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| Reverse DNS blacklisting per post office |
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| Restrict message throughput per post office |
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| Configure service availability per post office |
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| Mailbox level features |
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| Configure service availability per mailbox |
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| Mailbox spam rules/filtering |
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| Restrict message throughput per mailbox |
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| Mailbox redirection (configure via web mail) |
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| Multiple mailbox addresses |
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| Auto-responder for mailboxes |
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| Execute application on e-mail delivery to mailbox |
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| Developer/System Tools and Utilities |
| Provider migration utility |
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| Directory management utility |
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| System Tray Utility (METray) |
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| Activity monitor |
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| Diagnostic utility |
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| Message tracking utility |
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| List Server |
| Moderated |
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| Add header text to e-mails |
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| Add footer text to e-mails |
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| Subscribe |
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| Unsubscribe |
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| Reply to List |
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| Force poster to be a member |
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| Disable a list |
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| Password protect lists |
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| List 'Help' commands for users |
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| Activity logging |
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| Prefix e-mail subjects |
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| Import users from a text file |
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| Configure List Reply To Address |
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| Configurable HTML Headers and footers |
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| Email addresses retrieved via database query |
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| Web Administration |
| Manage multiple post offices via web administration |
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| Search for matching domains, mailboxes, etc |
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| Manage directory |
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| Manage mailboxes |
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| Manage domains |
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| Manage lists |
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| Manage groups |
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| Multiple Language Support (English, French, German, Italian and Spanish) |
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| Web administration skins |
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| .NET and ASP web administration |
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| Web mail |
| Drag & drop messages into folders |
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| Virtual message lists that don't require page selection |
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| Auto-complete for addressing |
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| Keyboard shortcuts |
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| Right click items for actions (e.g. rename, mark as unread) |
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| Save message as draft |
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| Read receipts |
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| New message notification |
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| Quota usage display |
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| Compose/view messages in separate windows |
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| Skins and re-branding |
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| Summary page outlining mailbox status |
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| Select the page that is displayed on log-in |
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| Support for various e-mail character sets |
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| Multi-lingual (English, French, German, Italian, Spanish) |
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| Print messages |
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| View message headers |
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| Change passwords |
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| View HTML e-mails |
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| Compose HTML e-mail messages |
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| Auto signature |
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| Sub folders |
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| Search by subject, content and sender |
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| Bottom and right side preview mode |
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| View images attached to a message in a slideshow |
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| Download source of message |
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| Task lists |
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| Appointment messages have their own icon |
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| Add appointment requests direct to calendar |
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| Contact groups |
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| Import contacts from Outlook and Outlook Express |
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| Personal calendar |
|
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| Personal tasks |
|
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| Personal contacts |
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| Mailbox redirection |
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| POP Retrieval |
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| Spell-checker (multi-lingual) |
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| Personalization |
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| Mailbox, calendar and contact sharing |
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| Edit own directory details from within web mail |
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| Configure web mail layout per domain |
|
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| Configure web mail skin per domain |
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| Configure personal filters |
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| Global contacts |
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| Public folders |
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| Mailbox spam rules/filtering |
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