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Diffstat (limited to 'contrib/sendmail/contrib/dnsblaccess.m4')
| -rw-r--r-- | contrib/sendmail/contrib/dnsblaccess.m4 | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/contrib/sendmail/contrib/dnsblaccess.m4 b/contrib/sendmail/contrib/dnsblaccess.m4 deleted file mode 100644 index c9a5f7e61ff3b..0000000000000 --- a/contrib/sendmail/contrib/dnsblaccess.m4 +++ /dev/null @@ -1,94 +0,0 @@ -divert(-1) -# -# Copyright (c) 2001-2002 Sendmail, Inc. and its suppliers. -# All rights reserved. -# -# By using this file, you agree to the terms and conditions set -# forth in the LICENSE file which can be found at the top level of -# the sendmail distribution. -# -# - -dnl ## This is a modified enhdnsbl, loosely based on the -dnl ## original. -dnl ## -dnl ## Use it as follows -dnl ## -dnl ## HACK(dnsblaccess, domain, optional-message, tempfail-message, keytag) -dnl ## -dnl ## The first argument (domain) is required. The other arguments -dnl ## are optional and have reasonable defaults. The -dnl ## optional-message is the error message given in case of a -dnl ## match. The default behavior for a tempfail is to accept the -dnl ## email. A tempfail-message value of `t' temporarily rejects -dnl ## with a default message. Otherwise the value should be your -dnl ## own message. The keytag is used to lookup the access map to -dnl ## further refine the result. I recommend a qualified keytag -dnl ## (containing a ".") as less likely to accidently conflict with -dnl ## other access tags. -dnl ## -dnl ## This is best illustrated with an example. Please do not use -dnl ## the example, as it refers to a bogus lookup list. -dnl ## -dnl ## Suppose that you use -dnl ## -dnl ## HACK(dnsblaccess, `rbl.bogus.org',`',`t',bogus.tag) -dnl ## -dnl ## and suppose that your access map contains the entries -dnl ## -dnl ## bogus.tag:127.0.0.2 REJECT -dnl ## bogus.tag:127.0.0.3 error:dialup mail from %1: listed at %2 -dnl ## bogus.tag:127.0.0.4 OK -dnl ## bogus.tag:127 REJECT -dnl ## bogus.tag: OK -dnl ## -dnl ## If an SMTP connection is received from 123.45.6.7, sendmail -dnl ## will lookup the A record for 7.6.45.123.bogus.org. If there -dnl ## is a temp failure for the lookup, sendmail will generate a -dnl ## temporary failure with a default message. If there is no -dnl ## A-record for this lookup, then the mail is treated as if the -dnl ## HACK line were not present. If the lookup returns 127.0.0.2, -dnl ## then a default message rejects the mail. If it returns -dnl ## 127.0.0.3, then the message -dnl ## "dialup mail from 123.45.6.7: listed at rbl.bogus.org" -dnl ## is used to reject the mail. If it returns 127.0.0.4, the -dnl ## mail is processed as if there were no HACK line. If the -dnl ## address returned is something else beginning with 127.*, the -dnl ## mail is rejected with a default error message. If the -dnl ## address returned does not begin 127, then the mail is -dnl ## processed as if the HACK line were not present. - -divert(0) -VERSIONID(`$Id: dnsblaccess.m4,v 1.5 2002/05/19 21:30:06 gshapiro Exp $') -ifdef(`_ACCESS_TABLE_', `dnl', - `errprint(`*** ERROR: dnsblaccess requires FEATURE(`access_db') -')') -ifdef(`_EDNSBL_R_',`dnl',`dnl -define(`_EDNSBL_R_', `1')dnl ## prevent multiple redefines of the map. -LOCAL_CONFIG -# map for enhanced DNS based blacklist lookups -Kednsbl dns -R A -a. -T<TMP> -r`'ifdef(`EDNSBL_TO',`EDNSBL_TO',`5') -') -divert(-1) -define(`_EDNSBL_SRV_', `ifelse(len(X`'_ARG_),`1',`blackholes.mail-abuse.org',_ARG_)')dnl -define(`_EDNSBL_MSG_', `ifelse(len(X`'_ARG2_),`1',`"550 Rejected: " $`'&{client_addr} " listed at '_EDNSBL_SRV_`"',`_ARG2_')')dnl -define(`_EDNSBL_MSG_TMP_', `ifelse(_ARG3_,`t',`"451 Temporary lookup failure of " $`'&{client_addr} " at '_EDNSBL_SRV_`"',`_ARG3_')')dnl -define(`_EDNSBL_KEY_', `ifelse(len(X`'_ARG4_),`1',`dnsblaccess',_ARG4_)')dnl -divert(8) -# DNS based IP address spam list _EDNSBL_SRV_ -R$* $: $&{client_addr} -dnl IPv6? -R$-.$-.$-.$- $: <?> $(ednsbl $4.$3.$2.$1._EDNSBL_SRV_. $: OK $) <>$1.$2.$3.$4 -R<?>OK<>$* $: OKSOFAR -R<?>$+<TMP><>$* $: <? <TMPF>> -R<?>$* $- .<>$* <$(access _EDNSBL_KEY_`:'$1$2 $@$3 $@`'_EDNSBL_SRV_ $: ? $)> $1 <>$3 -R<?>$* <>$* $:<$(access _EDNSBL_KEY_`:' $@$2 $@`'_EDNSBL_SRV_ $: ? $)> <>$2 -ifelse(len(X`'_ARG3_),`1', -`R<$*<TMPF>>$* $: TMPOK', -`R<$*<TMPF>>$* $#error $@ 4.7.1 $: _EDNSBL_MSG_TMP_') -R<$={Accept}>$* $: OKSOFAR -R<ERROR:$-.$-.$-:$+> $* $#error $@ $1.$2.$3 $: $4 -R<ERROR:$+> $* $#error $: $1 -R<DISCARD> $* $#discard $: discard -R<$*> $* $#error $@ 5.7.1 $: _EDNSBL_MSG_ -divert(-1) |