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Features
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| Mail Services |
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POP
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SMTP
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POP Retrieval
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HTTPMail
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IMAP
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Web Mail
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| POP Services |
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Customize welcome message (for security)
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Allow concurrent user access to single mailbox
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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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| IMAP |
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IDLE support
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Listen on alternate port
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| HTTPMail |
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Public folders
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| Message Filtering Services |
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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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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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| Security and Authentication |
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SSL for POP, SMTP, and IMAP
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CRAM-MDS authentication for POP, SMTP, and IMAP
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NTLM authentication for POP, SMTP, and IMAP
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Active Directory/Windows Authentication
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POP before SMTP authentication
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| Administration |
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Adminstration 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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Domain 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 email headers
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Validate domain MX records on inbound connections
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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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| Post Office Level Features |
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Groups
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Quota management
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| Developer/System Tools and Utilities |
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System Tray Utility (METray)
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Activity monitor
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Diagnostic ultility
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Message tracking utility
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| Web Mail |
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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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Load on demand AJAX tree view on left hand pane
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Right click items for actions (e.g. rename, mark as unread)
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Multi-select items in virtual list without changing pages
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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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Task lists
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Bottom and right side preview mode
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Appointment messages have their own icon
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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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Add appointment requests direct to calendar
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Read receipts
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Contact groups
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Save message as draft
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Import contacts from Outlook and Outlook Express
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Sub folders
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Personal calendar
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Personal tasks
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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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Personal contacts
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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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Mailbox redirection
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POP Retrieval
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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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Spell-checker (multi-lingual)
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Search by subject, content and sender
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