conf installation, 186
sensitive information in bounced
email, 219
server and client use, 184
SMTP AUTH=, 203
SMTP DATA phase timeouts, 110
smtp delivery agent, 732
smtp delivery agents, 731
SMTP HELO command, 133
SMTP macro, 144
SMTP pipelining extension, 133
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
Index | 1279
SMTP probes and security, 157??“160
debug and showq commands, 157
EXPN command, 159
VRFY command, 158
smtp8 delivery agent, 732
smtpd, 223
SMTPDEBUG macro, 144
security concerns, 158
SmtpGreetingMessage option, 1093
SMTPLINELIM macro, 144
socket database-map type, 936??“938
SOCKETMAP macro, 145
SoftBounce option, 1094
software error exit values, 229
source code, 45??“53
distribution directory, contents of, 45??“53
devtools directory, 47
doc directory, 48
include director, 48
INSTALL file, 48
KNOWNBUGS file, 48
libmilter directory, 48
libsm directory, 49
libsmdb directory, 48, 50
libsmutil directory, 50
LICENSE file, 50
m4(1) source code, 47
mail filter API, 49
Makefile file, 50
Milter, 49
op directory, 48
PGPKEYS file, 51
README file, 51
RELEASE_NOTES file, 51
sm directory, 48
test directory, 53
top-level Build script, 47
user-contributed and unsupported
code, 47
downloading, 42??“45
PGP, verifying with, 43??“45
verification failure, 45
source routing at the IP layer, 116
space character, 656
spam, 42, 251
MX failover servers and, 332
rules, rejection using, 649
spam, limiting, 251??“298
access database (see access database)
DNSBL, 260??“264
headers, checking with rule sets, 265??“267
Received: header, validity
checking, 266
Subject: header, virus screening
by, 265
Local_check_ rules (see Local_check_
rules)
relaying, 267??“277
FEATURE(accept_unqualified_
senders), 276
FEATURE(accept_unresolvable_
domains), 276
FEATURE(loose_relay_check), 270
FEATURE(nouucp), risks of, 275
FEATURE(promiscuous_relay), 271
FEATURE(relay_based_on_MX), 271
FEATURE(relay_entire_domain), 272
FEATURE(relay_hosts_only), 273
FEATURE(relay_local_from), 273
FEATURE(relay_mail_from), 274
macros to allow, 268
STARTTLS and AUTH= extensions,
based on, 290
spam suppression features, 290??“297
accept or reject per recipient, 284??“288
FEATURE(badmx), 291
FEATURE(block_bad_helo), 292
FEATURE(compat_check), 288
FEATURE(greet_pause), 293
FEATURE(mtamark), 295
FEATURE(require_rdns), 296
screening by domain and
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