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|   | Mail Abuse Protection System (   ) | 
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|   | MAIL_ACCESS mapping table (   ) (   ) | 
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|   | mail filter (   ) | 
|   |   | client access (   ) | 
|   |   | conversion channel (   ) | 
|   |   | DNS lookup (   ) | 
|   |   | for a channel (   ) | 
|   |   | for a user (   ) | 
|   |   | for mailbox (   ) | 
|   |   | for Message Transfer Agent (   ) | 
|   |   | Identd callback (   ) | 
|   |   | MAPS RBL (   ) | 
|   |   | server-side rules (   ) | 
|   |   | Sieve (   ) | 
|   |   | SpamAssassin (   ) | 
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|   | mailAlternateAddress attribute (   ) | 
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|   | mailbox | 
|   |   | database files (   ) | 
|   |   | Message Store and (   ) | 
|   |   | Messaging Multiplexor and (   ) | 
|   |   | optimization (   ) | 
|   |   | setting database cache size (   ) | 
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|   | mailbox filtering (   ) (   ) | 
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|   | mailEquivalentAddress attribute (   ) | 
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|   | mapping tables to filter mail (   ) | 
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|   | MAPS RBL (   ) | 
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|   | master programs, channels (   ) | 
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|   | Master/slave LDAP (   ) | 
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|   | mboxlist directory (   ) | 
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|   | mediumweight IMAP users (   ) | 
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|   | mediumweight Messenger Express users (   ) | 
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|   | memory | 
|   |   | large Instant Messaging deployment (   ) | 
|   |   | minimum requirement for Instant Messaging (   ) | 
|   |   | minimum requirement for Messaging Server (   ) | 
|   |   | small Instant Messaging deployment (   ) | 
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|   | message address verification (   ) | 
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|   | Message Store (   ) | 
|   |   | configuring (   ) | 
|   |   | definition (   ) | 
|   |   | description (   ) | 
|   |   | determining size (   ) | 
|   |   | folders (   ) | 
|   |   | HTTP (   ) | 
|   |   | IMAP (   ) (   ) (   ) | 
|   |   | IMAP server (   ) | 
|   |   | log file directory (   ) | 
|   |   | Messaging Multiplexor (   ) (   ) | 
|   |   | partitions (   ) (   ) | 
|   |   | performance issues (   ) | 
|   |   | POP (   ) (   ) (   ) | 
|   |   | POP server (   ) | 
|   |   | recovering lost data (   ) | 
|   |   | scaling (   ) | 
|   |   | security issues (   ) | 
|   |   | single-copy message store (   ) | 
|   |   | sizing (   ) | 
|   |   | system files (   ) | 
|   |   | user mailboxes (   ) | 
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|   | Message Transfer Agent | 
|   |   | access component (   ) | 
|   |   | configuring (   ) | 
|   |   | incoming email messages (   ) | 
|   |   | Internet-facing (   ) | 
|   |   | mail filter (   ) | 
|   |   | managing messages (   ) | 
|   |   | MX records (   ) | 
|   |   | outgoing email messages (   ) | 
|   |   | performance issues (   ) | 
|   |   | protecting relays (   ) | 
|   |   | purpose (   ) (   ) | 
|   |   | queue directories (   ) | 
|   |   | service dispatcher (   ) | 
|   |   | single-tiered architecture (   ) | 
|   |   | SMTP protocol (   ) | 
|   |   | two-tiered architecture (   ) | 
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|   | Messaging Express Multiplexor (   ) | 
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|   | Messaging Multiplexor (   ) (   ) (   ) (   ) | 
|   |   | high availability (   ) | 
|   |   | performance issues (   ) | 
|   | 
|   | Messaging Server | 
|   |   | and high availability (   ) | 
|   |   | authentication services (   ) | 
|   |   | considerations (   ) | 
|   |   | determining concurrent connections (   ) | 
|   |   | dividing clients across multiple hosts (   ) | 
|   |   | firewall (   ) | 
|   |   | hosted domains (   ) (   ) | 
|   |   | LDAP database (   ) (   ) | 
|   |   | load balancing (   ) (   ) | 
|   |   | Local Mail Transfer Protocol (   ) | 
|   |   | log file directory (   ) | 
|   |   | message load for a server machine (   ) | 
|   |   | Message Transfer Agent (   ) (   ) | 
|   |   | Messaging Express Multiplexor (   ) | 
|   |   | Messaging Multiplexor (   ) | 
|   |   | mobile users (   ) | 
|   |   | overview (   ) | 
|   |   | performance issues (   ) | 
|   |   | satisfying business needs (   ) | 
|   |   | Schema 1 (   ) | 
|   |   | Schema 2 (   ) | 
|   |   | Secure Sockets Layer (   ) (   ) | 
|   |   | security features (   ) | 
|   |   | sizing Message Store (   ) | 
|   |   | spam (   ) | 
|   |   | standalone view (   ) | 
|   |   | supported protocols (   ) | 
|   |   | two-tiered architecture (   ) (   ) (   ) | 
|   |   | unified messaging solution (   ) | 
|   |   | Webmail (   ) | 
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|   | messaging topology (   ) | 
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|   | Messenger Express (   ) (   ) (   ) | 
|   |   | and Personal Address Book (   ) | 
|   |   | as part of tiered architecture (   ) (   ) (   ) (   ) | 
|   |   | authentication protocols (   ) | 
|   |   | client connections (   ) | 
|   |   | encryption (   ) | 
|   |   | mail filters (   ) (   ) | 
|   |   | mailbox filtering (   ) | 
|   |   | making secure (   ) | 
|   |   | S/MIME (   ) | 
|   |   | security considerations (   ) | 
|   |   | security issues (   ) | 
|   |   | signed messages (   ) | 
|   |   | storing mail filters (   ) | 
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|   | messenger.jar file (   ) | 
|   | 
|   | Microsoft Outlook (   ) (   ) (   ) (   ) | 
|   |   | connector (   ) | 
|   | 
|   | milter (   ) | 
|   | 
|   | MIME messages (   ) | 
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|   | MMP (   ) (   ) | 
|   |   | security issues (   ) | 
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|   | MMP SMTP Proxy (   ) | 
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|   | mobile users (   ) | 
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|   | monitoring your system (   ) (   ) | 
|   | 
|   | MTA router (   ) | 
|   | 
|   | MX records (   ) |