Technical data
17.6.2 Preventing the System from Routing SPAM .................... 17–18
17.6.3 Controlling Relay Checking . ................................ 17–19
17.6.3.1 Specifying the Good-Clients List . . . ....................... 17–19
17.6.3.2 Processing DNS Entries in the Good-Clients List ............. 17–20
17.6.3.3 Mail Relay to MX Gateways.............................. 17–20
17.6.3.4 Specifying the Relay-Zones List ........................... 17–20
17.6.3.5 Rejecting Route-Through Attempts . ....................... 17–21
17.6.3.6 Examples of Specifying Good-Clients and Relay-Zones . . ....... 17–21
17.6.4 Blocking Mail from Specified Clients . . . ....................... 17–22
17.6.4.1 Resolving Conflicts between Bad-Clients and Good-Clients ...... 17–22
17.6.5 Real-Time Black Hole Lists (RBL) ............................ 17–22
17.6.5.1 Using Other RBL Lists . ................................ 17–23
17.6.6 Translating Client IP Addresses ............................. 17–23
17.6.7 Blocking Mail from Specified Senders . . ....................... 17–24
17.6.8 Specifying Handling of SPAM Events . . ....................... 17–25
17.6.8.1 Reporting SPAM Events. ................................ 17–25
17.6.8.2 Configuring SPAM Security .............................. 17–25
17.6.8.3 Specifying the SPAM Rejection Text. ....................... 17–26
17.7 Managing SMTP Send-From-File (SFF) ........................... 17–26
17.7.1 SFF Security Measures .................................... 17–27
17.7.2 Invoking SFF from an Application ............................ 17–27
17.7.3 Invoking SFF from DCL . . . ................................ 17–27
17.8 Disabling SMTP Outbound Alias ................................ 17–28
17.9 Solving SMTP Problems ....................................... 17–28
17.9.1 Verifying SMTP Control Files ............................... 17–28
17.9.2 Preventing 8-Bit Autoconversion ............................. 17–29
18 Configuring and Managing the POP Server
18.1 Key Concepts ............................................... 18–1
18.1.1 POP Server Process ....................................... 18–2
18.1.2 How to Access Mail Messages from the POP Server .............. 18–2
18.1.3 How the POP Server Initiates and Manages a TCP Connection ..... 18–2
18.1.4 How the POP Server Handles Foreign Message Formats . . . ....... 18–3
18.1.5 How the POP Server Authorizes Users . ....................... 18–3
18.1.6 Understanding POP Message Headers . . ....................... 18–4
18.1.6.1 How POP Rebuilds the OpenVMS Mail From: Field ........... 18–4
18.1.6.1.1 SMTP Address ..................................... 18–5
18.1.6.1.2 DECnet Address.................................... 18–5
18.1.6.1.3 User Name-Only Address ............................. 18–6
18.1.6.1.4 DECnet Address That Contains Quotation Marks . . . ....... 18–6
18.1.6.1.5 Cluster-Forwarding SMTP Address ..................... 18–7
18.1.6.1.6 All Other Addresses . ................................ 18–7
18.2 POP Server Startup and Shutdown .............................. 18–7
18.3 Modifying POP Server Characteristics ............................ 18–8
18.4 Enabling MIME Mail . ........................................ 18–12
18.5 Solving POP Problems ........................................ 18–12
18.5.1 POP Server Messages ..................................... 18–12
18.5.2 Using POP Extension Commands ............................ 18–13
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