McAfee MAP-3300-SWG Product Guide - Page 98

Table 75, Option definitions, Add Relay List

Page 98 highlights

Overview of Email features Email Configuration • If the domain does not exist, the appliance generates a non-delivery report and sends it to the originator. • If the receiving server cannot accept delivery, or there are no IP addresses to complete the delivery, the message is queued. Table 75 Option definitions Option Import Lists Export Lists Known domains and relay hosts Definition Click the link to open the Import Lists dialog box. Click the link to open the Export Lists dialog box. Displays a list of domains. This list allows you to specify specific relays/sets of relays to be used to deliver messages destined for specific domains. Domains can be identified using exact matches, or using pattern matches such as *.example.com. Click Add Relay List to populate the Known domains and relay hosts table with a list of host names, or IP addresses for delivery. Delivery will be attempted in the order specified unless you select the Round-robin the above hosts option which will distribute the load between the specified hosts. Host names/IP addresses may include a port number. Click Add MX Lookup to populate the Known domains and relay hosts table with an MX record lookup to determine the IP addresses for delivery. Delivery will be attempted to host names returned by the MX lookup in the order of priority given by the DNS server. Use an IP address with optional port number or a fully qualified domain name. For example, 10.6.1.6 or 10.6.1.5:25 or mailrelay.mydomain1.dom. If you specify a fully qualified domain name, the appliance does an A-record lookup to determine the IP address. To specify multiple relays for a single domain, separate each with a space. If the first mail relay is accepting email, all email is delivered to the first relay. If that relay stops accepting email, subsequent email is delivered to the next relay in the list. Enable DNS lookup If selected, the appliance uses DNS to route email for other, unspecified domains. for domains not DNS delivery attempts an MX-record lookup. If there are no MX records, it does an listed above A-record lookup. If you deselect this checkbox, the appliance delivers email only to the domains that are specified under Known domains and relay hosts. Fallback relays for unreachable domains Specifies the fallback relays. If delivery is unsuccessful by any other method, and the domain matches an entry in this list, the appliance uses the information in this list to determine a host to be used for delivery. Click Add Relay List to populate the Known domains and relay hosts table with a list of host names, or IP addresses for delivery. Delivery will be attempted using the hosts in the order specified unless you select the Round-robin the above hosts option which will distribute the load between the specified hosts. Host names/IP addresses may include a port number. Click Add MX Lookup to populate the Known domains and relay hosts table with an MX record lookup to determine the IP addresses for delivery. Delivery will be attempted to host names returned by the MX lookup in the order of priority given by the DNS server. 98 McAfee Email and Web Security Appliances 5.6.0 Product Guide

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250
  • 251
  • 252
  • 253
  • 254
  • 255
  • 256
  • 257
  • 258
  • 259
  • 260
  • 261
  • 262
  • 263
  • 264
  • 265
  • 266
  • 267
  • 268
  • 269
  • 270
  • 271
  • 272
  • 273
  • 274
  • 275
  • 276
  • 277
  • 278
  • 279
  • 280
  • 281
  • 282
  • 283
  • 284
  • 285
  • 286
  • 287
  • 288
  • 289
  • 290
  • 291
  • 292
  • 293
  • 294
  • 295
  • 296
  • 297
  • 298
  • 299
  • 300
  • 301
  • 302
  • 303
  • 304
  • 305
  • 306
  • 307
  • 308
  • 309
  • 310
  • 311
  • 312
  • 313
  • 314
  • 315
  • 316
  • 317
  • 318
  • 319
  • 320
  • 321
  • 322
  • 323
  • 324
  • 325
  • 326
  • 327
  • 328
  • 329
  • 330
  • 331
  • 332
  • 333
  • 334
  • 335
  • 336

If the domain does not exist, the appliance generates a non-delivery report and sends it to the
originator.
If the receiving server cannot accept delivery, or there are no IP addresses to complete the
delivery, the message is queued.
Table 75
Option definitions
Option
Definition
Import Lists
Click the link to open the
Import Lists
dialog box.
Export Lists
Click the link to open the
Export Lists
dialog box.
Known domains
and relay hosts
Displays a list of domains.
This list allows you to specify specific relays/sets of relays to be used to deliver
messages destined for specific domains. Domains can be identified using exact
matches, or using pattern matches such as
*.example.com
.
Click
Add Relay List
to populate the
Known domains and relay hosts
table with a list of host
names, or IP addresses for delivery. Delivery will be attempted in the order specified
unless you select the
Round-robin the above hosts
option which will distribute the load
between the specified hosts.
Host names/IP addresses may include a port number.
Click
Add MX Lookup
to populate the
Known domains and relay hosts
table with an MX record
lookup to determine the IP addresses for delivery.
Delivery will be attempted to host names returned by the MX lookup in the order of
priority given by the DNS server.
Use an IP address with optional port number or a fully qualified domain name. For
example,
10.6.1.6
or
10.6.1.5:25
or
mailrelay.mydomain1.dom
. If you specify a
fully qualified domain name, the appliance does an A-record lookup to determine the
IP address.
To specify multiple relays for a single domain, separate each with a space.
If the first mail relay is accepting email, all email is delivered to the first relay. If
that relay stops accepting email, subsequent email is delivered to the next relay in
the list.
Enable DNS lookup
for domains not
listed above
If selected, the appliance uses DNS to route email for other, unspecified domains.
DNS delivery attempts an MX-record lookup. If there are no MX records, it does an
A-record lookup.
If you deselect this checkbox, the appliance delivers email only to the domains that
are specified under
Known domains and relay hosts
.
Fallback relays for
unreachable
domains
Specifies the fallback relays. If delivery is unsuccessful by any other method, and
the domain matches an entry in this list, the appliance uses the information in this
list to determine a host to be used for delivery.
Click
Add Relay List
to populate the
Known domains and relay hosts
table with a list of host
names, or IP addresses for delivery. Delivery will be attempted using the hosts in
the order specified unless you select the
Round-robin the above hosts
option which will
distribute the load between the specified hosts.
Host names/IP addresses may include a port number.
Click
Add MX Lookup
to populate the Known domains and relay hosts table with an MX
record lookup to determine the IP addresses for delivery.
Delivery will be attempted to host names returned by the MX lookup in the order of
priority given by the DNS server.
Overview of Email features
Email Configuration
98
McAfee Email and Web Security Appliances 5.6.0 Product Guide