ACL version, more features!
Addresses of the following form are supported:
* user-dated-YYYY@domain
* user-dated-YYYYMM@domain
* user-dated-YYYYMMMDD@domain
* user-dated-EPOCH@domain
Example session:
=== start example session ===
220 thinkpad.krot.org ESMTP Exim 4.23 Thu, 25 Dec 2003 12:48:36 +0100
helo there
250 thinkpad.krot.org Hello km at there
mail from:<km@???>
250 OK
rcpt to:<km-dated-2002@???>
550 Invalid/expired dated address
rcpt to:<km-dated-2003@???>
250 Accepted
rcpt to:<km-dated-2004@???>
250 Accepted
rcpt to:<km-dated-200311@???>
550 Invalid/expired dated address
rcpt to:<km-dated-200312@???>
250 Accepted
rcpt to:<km-dated-200401@???>
250 Accepted
rcpt to:<km-dated-20031224@???>
550 Invalid/expired dated address
rcpt to:<km-dated-20031225@???>
250 Accepted
rcpt to:<km-dated-20031226@???>
250 Accepted
rcpt to:<km-dated-1072439180@???>
250 Accepted
rcpt to:<km-dated-1042439180@???>
550 Invalid/expired dated address
quit
221 thinkpad.krot.org closing connection
=== end example session ===
ACLs (modify domains to suit your needs):
=== start ACL ===
warn domains = *
local_parts = ^.+-dated-0*(\\d{4,12})
set acl_m0 = ${if match{$tod_log}{^(\\d\\d\\d\\d)-(\\d\\d)-(\\d\\d)}\
{y=$1 m=$1$2 d=$1$2$3 e=$tod_epoch}{}}
set acl_m1 = ${if match{$local_part}{-dated-0*(\\d\{4,12\})}{$1}{}}
condition = ${if eq{$acl_m1}{}{no}{yes}}
set acl_m2 = ${strlen:$acl_m1}
set acl_m3 = ${if =={$acl_m2}{4}\
{${if <{$acl_m1}{${extract{y}{$acl_m0}}}{nn}{yy}}}\
{${if =={$acl_m2}{6}\
{${if <{$acl_m1}{${extract{m}{$acl_m0}}}{nn}{yy}}}\
{${if =={$acl_m2}{8}\
{${if <{$acl_m1}{${extract{d}{$acl_m0}}}{nn}{yy}}}\
{${if <{$acl_m1}{${extract{e}{$acl_m0}}}{nn}{yy}}}\
}\
}\
}\
}\
}
accept condition = ${if eq{$acl_m3}{}{no}{yes}}
endpass
message = Invalid/expired dated address
condition = ${if eq{$acl_m3}{yy}{yes}{no}}
=== end ACL ===
Have fun.
--
Kirill Miazine
mailto:km@krot.org
http://km.krot.org/
