dnl
dnl проверка праметра SIZE команды MAIL FROM при использовании клиентом протокола ESMTP
dnl NO		- не проверять резолвинг домена верхнего уровня команды HELO
dnl WARN	- вывод в лог файл предупреждения
dnl PAUSE:XX	- пауза XX секунд
dnl GREYLIST:XX	- добавить XX баллов к счетчику опционального greylisting'а
dnl REJECT:XX	- добавить XX баллов к счетчику опционального reject'а
dnl define(`confCHECK_ESMTP_SIZE', `NO')dnl
dnl
dnl исключения из проверки праметра SIZE команды MAIL FROM при использовании клиентом протокола ESMTP
dnl RELAY_FROM		- из проверки исключаются исходящие письма
dnl AUTH		- из проверки исключаются письма от аутентифицированных отправителей
dnl FROM_NULL_SENDER	- из проверки исключаются письма от пустых отправителей
dnl FROM_POSTMASTER	- из проверки исключаются письма от пустых postmaster'ов
dnl define(`confCHECK_ESMTP_SIZE_SKIP', `RELAY_FROM AUTH FROM_NULL_SENDER FROM_POSTMASTER')dnl
dnl

	warn	set acl_m1	= 
		set acl_m3	= 
		condition	= ${if eq{$received_protocol}{esmtp}{yes}{no}}
		condition	= ${if eq{$message_size}{-1}{yes}{no}}
		condition	= ${if eq{$sender_address}{}{no}{yes}}
ifelse_strstr(confCONTENT_SCANNING_QUARANTINE, `PERSONAL',`dnl
		set acl_m1	= NORMALIZE_ACTION_PERSONAL_QUARANTINE(confCHECK_ESMTP_SIZE)
',`dnl
		set acl_m1	= NORMALIZE_ACTION(confCHECK_ESMTP_SIZE)
')dnl
		set acl_m1	= ${sg{$acl_m1 }{\N\b([^=\s\d]+)(\s)\N}{\$1=00\$2}}
		# message	= $acl_m2
		# log_message	= $acl_m0
		set acl_m2	= ESMTP used and parameter SIZE not found in MAIL FROM command
		set acl_m0	= ESMTP used and parameter SIZE not found in MAIL FROM command

ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `RELAY_FROM', `dnl
	warn	condition	= ${if eq{$acl_m1}{}{no}{yes}}
		hosts		= +relay_from_hosts
		set acl_m3	= skip
		condition	= ${if eq{${extract{warn}{$acl_m1}}}{}{no}{yes}}
		add_header	= X-Warn-ESMTP-SIZE: ${acl_m2}: skip for relay from host
		log_message	= ${acl_m0}: skip for relay from host
') dnl ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `RELAY_FROM', `')

ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `AUTH', `dnl
	warn	condition	= ${if eq{$acl_m1}{}{no}{yes}}
		authenticated	= *
		set acl_m3	= skip
		condition	= ${if eq{${extract{warn}{$acl_m1}}}{}{no}{yes}}
		add_header	= X-Warn-ESMTP-SIZE: ${acl_m2}: skip for authenticated sender
		log_message	= ${acl_m0}: skip for relay from authenticated sender
') dnl ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `AUTH', `')

ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `FROM_NULL_SENDER', `dnl
	warn	condition	= ${if eq{$acl_m1}{}{no}{yes}}
		senders		= :
		set acl_m3	= skip
		condition	= ${if eq{${extract{warn}{$acl_m1}}}{}{no}{yes}}
		add_header	= X-Warn-ESMTP-SIZE: ${acl_m2}: skip for null sender
		log_message	= ${acl_m0}: skip for relay from null sender
') dnl ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `FROM_NULL_SENDER', `')

ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `FROM_NULL_POSTMASTER', `dnl
	warn	condition	= ${if eq{$acl_m1}{}{no}{yes}}
		condition	= ${if eq{$sender_address_local_part}{postmaster}{yes}{no}}
		set acl_m3	= skip
		condition	= ${if eq{${extract{warn}{$acl_m1}}}{}{no}{yes}}
		add_header	= X-Warn-ESMTP-SIZE: ${acl_m2}: skip for postmaster
		log_message	= ${acl_m0}: skip for relay from postmaster
') dnl ifelse_strstr(confCHECK_ESMTP_SIZE_SKIP, `FROM_POSTMASTER', `')

	warn	condition	= ${if eq{$acl_m1}{}{no}{yes}}
		condition	= ${if eq{$acl_m3}{skip}{yes}{no}}
		set acl_m1	=

	warn	condition	= ${if match{$acl_m1}{warn}{yes}{no}}
		add_header	= X-Warn-ESMTP-SIZE: ${acl_m2}
                log_message	= $acl_m0${if eq{${extract{pause}{$acl_m1}}}{}{}{: message delayed for ${extract{pause}{$acl_m1}}s}}

	warn	condition	= ${if eq{${extract{pause}{$acl_m1}}}{}{no}{yes}}
		delay		= ${extract{pause}{$acl_m1}}s
		set acl_m_spam_action	= ${acl_m_spam_action}\t\
				delay=${extract{pause}{$acl_m1}}s\t\t\
				$acl_m0\n

ifelse(confGREYLIST, `OPTIONAL', `dnl
	warn	condition	= ${if eq{${extract{greylist}{$acl_m1}}}{}{no}{yes}}
		set acl_m_optional_greylist	= \
				scores=${eval:${extract{scores}{$acl_m_optional_greylist}}+${extract{greylist}{$acl_m1}}} \
				log_message="${extract{log_message}{$acl_m_optional_greylist}} $acl_m0;"
		set acl_m_spam_action	= ${acl_m_spam_action}\t\
				greylist scores=${extract{greylist}{$acl_m1}}\t\
				$acl_m0\n
') dnl ifelse(confGREYLIST, `OPTIONAL', `')
ifdef(`confOPTIONAL_REJECT', `ifelse(confOPTIONAL_REJECT, `NO', `dnl', `dnl
	warn	condition	= ${if eq{${extract{reject}{$acl_m1}}}{}{no}{yes}}
		condition	= ${if eq{${extract{reject}{$acl_m1}}}{00}{no}{yes}}
		set acl_m_optional_reject	= \
				scores=${eval:${extract{scores}{$acl_m_optional_reject}}+${extract{reject}{$acl_m1}}} \
				log_message="${extract{log_message}{$acl_m_optional_reject}} $acl_m0;"
		set acl_m_spam_action	= ${acl_m_spam_action}\t\
				reject scores=${extract{reject}{$acl_m1}}\t\t\
				$acl_m0\n
')') dnl ifdef(`confOPTIONAL_REJECT', `ifelse(confOPTIONAL_REJECT, `NO', `', `')')