A.2. °ü·Ã ÆÐŰÁö

A.2.1. dot-forward

SendmailÀº dot forward¶ó°í ¹ßÀ½ÇÏ´Â .forwardÆÄÀÏÀ» »ç¿ëÇØ¼­ »ç¿ëÀÚ°¡ ¼ö½Å¸Þ¼¼ÁöÀÇ Àü´ÞÀ» ÅëÁ¦Çϵµ·Ï ÇÕ´Ï´Ù. Å¥¸ÞÀϵµ À¯»çÇÑ ÀåÄ¡¸¦ ¾²´Âµ¥, .qmailÆÄÀÏÀÔ´Ï´Ù. dot-forwardÆÐŰÁö´Â Å¥¸ÞÀÏÀÌ .forwardÆÄÀÏÀ» »ç¿ëÇÒ ¼ö ÀÖ°Ô ÇÕ´Ï´Ù. .forwardÆÄÀÏÀ» »ç¿ëÇÏ´Â SendmailÀ̳ª ¿©Å¸ MTA¸¦ ¿î¿µÇÏ´Â ½Ã½ºÅÛÀº ±âÁ¸ÀÇ .forwardÆÄÀÏÀ» .qmail¿¡ »óÀÀÇϴ°ÍÀ¸·Î º¯È¯ÇÏÁö ¾Ê±â À§Çؼ­, ¶Ç´Â ´Ü¼øÈ÷ Å¥¸ÞÀÏ·ÎÀÇ ÀÌÇàÀ» »ç¿ëÀڵ鿡°Ô ´ú ´«¿¡ ¶ç°Ô Çϱâ À§Çؼ­ dot-forwardÀÇ »ç¿ëÀ» °í·ÁÇØ¾ß ÇÒ Áöµµ ¸ð¸¨´Ï´Ù.

ÀÛÀº ÆÐÄÉÁöÀ̹ǷΠ¼³Ä¡ÇÏ°í ¼³Á¤ÇÏ´Â µ¥ ½±½À´Ï´Ù. ÇØ´ç ¼Ò½º´Â ftp://cr.yp.to/software/dot-forward-0.71.tar.gz¿¡¼­ ±¸ÇÒ ¼ö ÀÖ½À´Ï´Ù.

Dan BernsteinÀÌ ½è°í, ±×´Â °ü·ÃȨÆäÁö¸¦ http://cr.yp.to/dot-forward.html¿¡ °ü¸®ÇÕ´Ï´Ù.

A.2.2. fastforward

¶Ç´Ù¸¥ Sendmailȣȯ ¾Ü¿ÂÀÔ´Ï´Ù. SendmailÀº Áß¾Ó¾Ù¸®¾î½ºµ¥ÀÌÅͺ£À̽º¸¦ ´ë°³ /etc/aliases¶ó´Â ´ÜÀÏÆÄÀÏ¿¡ º¸°üÇÕ´Ï´Ù. Å¥¸ÞÀÏÀº /var/qmail/alias¿¡ ÀÖ´Â ÀÏ·ÃÀÇ dot-qmailÆÄÀϵéÀ» »ç¿ëÇϴµ¥, ÇÑ ÆÄÀÏ¿¡ ÇÑ ¾Ù¸®¾î½ºÀÔ´Ï´Ù. Å¥¸ÞÀÏ·Î ¿Å±â½Ã´Âµ¥ º¯È¯ÇÏ°í ½ÍÁö ¾ÊÀº SendmailÇü½ÄÀÇ ¾Ù¸®¾î½ºÆÄÀÏÀÌ ÀÖÀ¸½Ã¸é, fastforward°¡ Å¥¸ÞÀÏ¿¡°Ô ¾Ù¸®¾î½ºÆÄÀÏÀ» ÀÖ´Â ±×´ë·Î ¾µ ¼ö ÀÖ°Ô ÇØÁÝ´Ï´Ù.

ÇØ´ç ¼Ò½º´Â ftp://cr.yp.to/software/fastforward-0.51.tar.gz¿¡¼­ ±¸ÇÒ ¼ö ÀÖ½À´Ï´Ù.

Dan BernsteinÀÌ ½è°í, ±×´Â http://cr.yp.to/fastforward.html¿¡ À¥ÆäÁö¸¦ °ü¸®ÇÕ´Ï´Ù.

A.2.3. ucspi-tcp

Å¥¸ÞÀÏÀÇ SMTP¼­¹ö´Â ½ºÅĵå¾ó·Ðµ¥¸óÀ¸·Î ÀÛµ¿ÇÏÁö ¾Ê½À´Ï´Ù. µµ¿ì¹ÌÇÁ·Î±×·¥ÀÎ inetd, xinetd, ¶Ç´Â tcpserver µîÀÌ µ¥¸óÀ¸·Î ÀÛµ¿ÇÕ´Ï´Ù. SMTPÆ÷Æ®ÀÎ 25Æ÷Æ®·Î Á¢¼ÓÀ» ¹ÞÀ¸¸é qmail-smtpd »çº»À» ½ÇÇàÇÕ´Ï´Ù.

inetd´Â Ç¥Áسݿ÷¼­¹öÀÎ "¼öÆÛ¼­¹ö"ÀÔ´Ï´Ù. /etc/inetd¸¦ ¼³Á¤Çؼ­ qmail-smtpd¸¦ ÀÛµ¿ÇÒ ¼ö ÀÖ½À´Ï´Ù¸¸, ucspi-tcpÆÐÄÉÁöÀÇ ÀϺÎÀÎ tcpserver°¡ ±ÇÀåÅøÀÔ´Ï´Ù. ucspi-tcp´Â UNIX Client-Server Program Interface for TCPÀÇ µÎ¹®ÀÚÀ̰í, ooks-pie tee see pee·Î ¹ßÀ½ÇÕ´Ï´Ù.

tcpserver¸¦ ¼±È£ÇÏ´Â ÀÌÀ¯´Â ´ÙÀ½°ú °°½À´Ï´Ù.

ÇØ´ç ¼Ò½º´Â ftp://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz¿¡¼­ ±¸ÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.

Gerrit Pape¾¾²²¼­ ¸ÇÆäÁö½ÄÀ¸·Î ¹®¼­¸¦ Á¦°øÇÕ´Ï´Ù.

Dan BernsteinÀÌ ½è°í, http://cr.yp.to/ucspi-tcp.html¿¡ À¥ÆäÁö¸¦ ¿î¿µÇÕ´Ï´Ù.

A.2.4. daemontools

¼­ºñ½º¸¦ ÅëÁ¦ÇÏ°í °¨½ÃÇÏ´Â À¯Æ¿¸®Æ¼±ºÀ» ´ã°í ÀÖ½À´Ï´Ù. Çʼö»çÇ×Àº ¾Æ´Õ´Ï´Ù¸¸, ƯÈ÷ ¹Ù»Û½Ã½ºÅÛ¿¡°Ô´Â °­·ÂÈ÷ ±ÇÀåÇÕ´Ï´Ù. Æ÷ÇÔÇÏ´Â À¯Æ¿¸®Æ¼µéÀº ´ÙÀ½°ú °°½À´Ï´Ù.

ÇØ´ç¼Ò½º´Â http://cr.yp.to/daemontools/daemontools-0.70.tar.gz¿¡¼­ ±¸ÇϽǼö ÀÖ½À´Ï´Ù.

Gerrit Pape¾¾²²¼­ ucspi-tcpdaemontools ¿¡ ´ëÇÑ ¸ÇÆäÁö½ÄÀ¸·Î ¹®¼­¸¦ Á¦°øÇÕ´Ï´Ù.

Dan BernsteinÀÌ ½è°í, http://cr.yp.to/daemontools.html¿¡ À¥ÆäÁö¸¦ ¿î¿µÇÕ´Ï´Ù.

A.2.5. qmailanalog

Å¥¸ÞÀÏÀÇ ·Î±×ÆÄÀÏÀ» ó¸®Çϰí ÇØ´ç ½Ã½ºÅÛÀÌ ¾ó¸¶³ª ±×¸®°í ¾î¶² ÀÏÀ» Çϰí ÀÖ´Â Áö ¾Ë¸®´Â ÀÏ·ÃÀÇ º¸°í¼­¸¦ ¸¸µì´Ï´Ù. ¾ó¸¶³ª ¸¹Àº ¸Þ¼¼Áö¸¦ ÁÖ°í ¹Þ¾Ò´Â Áö, ¾ó¸¶³ª Å« Áö, ¾ó¸¶³ª »¡¸® 󸮵Ǵ Áö µî¿¡ ´ëÇÑ Åë°è°¡ ÇÊ¿äÇϸé, qmailanalog°¡ ¹Ù·Î ±×°ÍÀÔ´Ï´Ù.

º¸³Ê½º·Î matchupÇÁ·Î±×·¥Àº Å¥¸ÞÀÏÀÇ ¸Å Àü´Þ´ç º¹¼ö·Î±×ÇàÀ» Çϳª·Î ¸¸µå´Âµ¥, ÀÌ¹Ì Àͼ÷ÇÑ Sendmail·Î±×¿Í ´Ù¸£Áö ¾Ê½À´Ï´Ù.

ÇØ´ç¼Ò½º´Â http://cr.yp.to/software/qmailanalog-0.70.tar.gz.¿¡¼­ ±¸ÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.

Dan BernsteinÀÌ ½è°í, http://cr.yp.to/qmailanalog.html¿¡ À¥ÆäÁö¸¦ ¿î¿µÇÕ´Ï´Ù.

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À¯ÀÇÁ¡: qmailanalog´Â accustamp°¡ »ç¿ëÇÏ´Â Ãʰ¡ ³ª´©¾îÁö´Â ¸Å¿ì ±ä ÀÔ·Â ½Ã°£Âï±â¿¡ ÀÇÁ¸ÇÕ´Ï´Ù. TAI64NÇü½ÄÀÇ multilogÀÌ ¸¸µå´Â ·Î±×¿Í °°ÀÌ ¾²·Á¸é ±¸Çü½ÄÀ¸·Î º¯È¯ÇØ¾ß ÇÕ´Ï´Ù. http://www.qmail.org/tai64nfrac¿¡¼­ ±×·± ÇÁ·Î±×·¥À» ±¸ÇÒ ¼ö ÀÖ½À´Ï´Ù.

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A.2.6. rblsmtpd

½ºÆÔ´çÇØº¸Áö ¾ÊÀ¸¼Ì´Ù¸é ¿îÀÌ ÁÁ¾Ò´Ù°í »ý°¢ÇϽʽÿÀ. À̸ÞÀÏ»ç¿ëÀÚµé ´ëºÎºÐÀÌ ½ºÆÔÀ̶ó°í ¾Ë·ÁÁø ¿øÄ¡¾Ê´Â µÎÅùÇÑ À̸ÞÀÏ (Unsolicited Bulk E-mail: UBE)¿¡ Àͼ÷ÇÕ´Ï´Ù. ±×°Íµé ´ëºÎºÐ ¼½½º»çÀÌÆ®, Çà¿îÀÇ ÆíÁö, ±âŸ ½Å¿ë»ç±â µî¿¡ ´ëÇÑ ±¤°íÀÔ´Ï´Ù. 1988³â Á¤µµ Àü±îÁöÀÇ ¿¹Àü¿¡´Â ÀÎÅͳݻóÀÇ MTAµé ´ëºÎºÐÀº °³¹æÁß°è, Áï ¼Û½ÅÀÚµµ ¼ö½ÅÀÚµµ ¸ðµÎ ·ÎÄÃÀÌ ¾Æ´Ï¶óµµ ´©±¸µçÁö º¸³»°í ´©±¸µçÁö ¹Þ´Â ¸ÞÀÏÀ» ¹Þ¾Æµé¿´½À´Ï´Ù. ½ºÆÐ¸Ó´Â ½ºÆÔÀ» Àü´ÞÇϱâ À§Çؼ­ ¾î´À°ÍÀ̵ç ã±â¸¸ ÇÏ¸é °³¹æÁ߰踦 ÀÌ¿ëÇÕ´Ï´Ù. ±×·¸°Ô µÇ¸é ÇàÀûÀ» µ¤¾î¹ö¸®°í, ¹Ý¹ßÀ» "Á¤Á÷ÇÑ" Áß°è»çÀÌÆ®·Î µ¹¸®°Ô µÇ¸ç, ±×µéÀº CPU½Ã°£°ú ³Ý¿÷´ë¿ªÀ» ¸¹ÀÌ ¾Æ³¢°Ô µË´Ï´Ù.

¿äÁò ÀÌ·± °³¹æÁß°è´Â ½ÉÇÑ ºÒ·®À¸·Î Àνĵǰí, ¸î¸î ¹Ý½ºÆÔÀÚ°æ´Ü±×·ìÀº °³¹æÁß°è¿Í ±âŸ Àú¼ÓÇÑ ½ºÆÔÃâó¸¦ È®ÀÎÇÏ´Â ÀåÄ¡¸¦ ¸¸µé¾î¼­ ±×µé·ÎºÎÅÍ SMTPÁ¢¼Ó½Â¶ôÀ» ÇÇÇÒ ¼ö ÀÖ½À´Ï´Ù. Realtime Blackhole List (RBL), Open Relay Behavior-modification System (ORBS), Dial-up User List (DUL) µîÀÌ ±×°ÍÀÔ´Ï´Ù.

rblsmtpd´Â RBL SMTP µ¥¸óÀÔ´Ï´Ù. tcpserver¿Í qmail-smtpdÀÇ »çÀÌ¿¡ ÀÖÀ¸¸é¼­ ÀÌ ¸®½ºÆ®»ó¿¡¼­ È®ÀÎµÈ ½Ã½ºÅÛÀ¸·ÎºÎÅÍÀÇ Á¢¼ÓÀ» °ÅºÎÇÕ´Ï´Ù.

tcpserver¿¡¼­ rblsmtpd¸¦ ¿î¿µÇÏ·Á¸é ´ÙÀ½°ú °°ÀÌ Çϼ¼¿ä.
#!/bin/sh
QMAILDUID=`id -u qmaild`
NOFILESGID=`id -g qmaild`
MAXSMTPD=`cat /var/qmail/control/concurrencyincoming`
exec /usr/local/bin/softlimit -m 2000000 \
/usr/local/bin/tcpserver -v -R -H -l 0 -x /etc/tcp.smtp.cdb -c "$MAXSMTPD" \
	 -u $QMAILDUID -g $NOFILESGID 0 smtp /var/qmail/bin/rblsmtpd\
	 -r blackholes.mail-abuse.org /var/qmail/bin/qmail-smtpd 2>&1

rblsmtpd´Â Àü¿¡´Â º°°³ÇÁ·Î±×·¥À̾úÁö¸¸, Áö±ÝÀº ucspi-tcp¿¡ °°ÀÌ Á¦°øµË´Ï´Ù.

Dan BernsteinÀÌ ½è°í, http://cr.yp.to/ucspi-tcp/rblsmtpd.html¿¡ À¥ÆäÁö¸¦ À¯ÁöÇÕ´Ï´Ù.

A.2.7. serialmail

Å¥¸ÞÀÏÀº Àü½Ã°£, °í¼ÓÁ¢¼ÓÀÇ ½Ã½ºÅÛÀ» À§ÇØ ¼³°èµÇ¾ú½À´Ï´Ù. serialmailÀº Å¥¸ÞÀÏÀ» °£ÇæÀûÀ̰í Àú¼Óµµ Á¢¼Ó¿¡ ´õ Àß ¸Â°Ô ÇÏ´Â Åø±ºÀÔ´Ï´Ù. ±×·± ½Ã½ºÅÛ»óÀÇ serialmail·Î Å¥¸ÞÀÏÀº ¸ðµç ¿ø°Ý¸ÞÀÏÀ» ´ÜÀÏ maildir·Î Àü´ÞÇϵµ·Ï ¼³Á¤µË´Ï´Ù. serialmailÀÇ maildir2smtp¸í·ÉÀº Á¢¼ÓÀÌ µÇ¾úÀ» ¶§ ISPÀÇ ¸ÞÀÏÇãºê·Î maildir¸¦ ¿Ã¸®´Â µ¥ »ç¿ëµË´Ï´Ù. ISP°¡ QMTP (°í±ÞÁÖÁ¦ÀÇ QMTP ¸¦ º¸½Ê½Ã¿À.)¸¦ Áö¿øÇϸé, maildirqmtpµµ ¾µ ¼ö ÀÖ½À´Ï´Ù.

serialmailÀº Á¢¼ÓÀÇ ISPÃø¿¡¼­ AutoTURNÀ» ±¸ÇöÇϴµ¥ »ç¿ëµÉ ¼ö Àִµ¥, Ŭ¶óÀÌ¾ðÆ®°¡ ÇÏ´Â SMTPÁ¢¼ÓÀº ¼­¹ö°¡ Á¢¼ÓÀ» Ŭ¶óÀÌ¾ðÆ®·Î µ¹·Á¼­ ¼­¹ö¿¡ Å¥µÈ ¸Þ¼¼Áö¸¦ Ŭ¶óÀÌ¾ðÆ®·Î º¸³»µµ·Ï ÇÕ´Ï´Ù. À̰ÍÀº ETRN SMTP±â´É°ú À¯»çÇÕ´Ï´Ù.

ÇØ´ç¼Ò½º´Â http://cr.yp.to/software/serialmail-0.75.tar.gz¿¡¼­ ±¸ÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.

Dan BernsteinÀÌ ½è°í, http://cr.yp.to/serialmail.html¿¡ À¥ÆäÁö¸¦ À¯ÁöÇÕ´Ï´Ù.

A.2.8. mess822

RFC 822¸¦ µû¸£´Â ¸Þ¼¼Áö¸¦ ÇØ¼®ÇÏ´Â ÀÀ¿ëÁ¦Ç°±º°ú ¶óÀÔ·¯¸®ÀÔ´Ï´Ù. ÀÀ¿ëÁ¦Ç°Àº ´ÙÀ½°ú °°½À´Ï´Ù.

ÇØ´ç ¼Ò½º´Â http://cr.yp.to/software/mess822-0.58.tar.gz¿¡¼­ ±¸ÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.

Dan BernsteinÀÌ ½èÀ¸¸ç http://cr.yp.to/mess822.html¿¡ À¥ÆäÁö¸¦ À¯ÁöÇÕ´Ï´Ù.

A.2.9. ezmlm

¼º´ÉÀÌ ¿ì¼öÇÏ°í »ç¿ëÇϱ⠽¬¿î Å¥¸ÞÀÏ¿ë ¸ÞÀϸµ¸®½ºÆ®¸Å´ÏÀúÀÔ´Ï´Ù. LISTSERV³ª Majordomo¿¡ Àͼ÷ÇÏ½Ã´Ù¸é ¸ÞÀϸµ¸®½ºÆ®¸Å´ÏÀú°¡ ¹«¾ùÀ» ÇÏ´Â Áö ¾Æ½Ç°Ì´Ï´Ù. Å¥¸ÞÀÏ¿¡¼­ÀÇ ¸ÞÀϸµ¸®½ºÆ®¿¡ ´ëÇØ ´õ ¾Ë°í ½ÍÀ¸½Ã¸é °í±ÞÁÖÁ¦ÀÇ ¸ÞÀϸµ¸®½ºÆ®¸Å´ÏÀúÇ׸ñÀ» º¸½Ê½Ã¿À.

ÇØ´ç¼Ò½º´Â http://cr.yp.to/software/ezmlm-0.53.tar.gz¿¡¼­ ±¸ÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù.

Dan BernsteinÀÌ ½è°í, http://cr.yp.to/ezmlm.html¿¡ °ü·ÃÀ¥ÆäÁö°¡ ÀÖ½À´Ï´Ù.

Fred Lindberg¾¾¿Í Fred B. Ringel¾¾²²¼­ ezmlm-idx¶ó´Â ezmlmÀÇ È®ÀåÆÐŰÁö¸¦ ¸¸µå¼Ì´Âµ¥, ±â´ÉÀÌ ¸¹À¸´Ï±î Çѹø ½áº¸¼¼¿ä.

A.2.10. safecat

ÆÄÀÏÀ» maildir¸ÞÀϺ¹½º¿¡ È®½ÇÈ÷ ¾¹´Ï´Ù. Ưº°È÷ procmail ¹æ¹ýÀ¸·Î ¸Þ¼¼Áö¸¦ º¸°üÇÏ´Â µ¥ À¯¿ëÇÕ´Ï´Ù. ¿¹¸¦ µé¸é, ´ÙÀ½¹æ¹ýÀº ¸Þ¼¼Áö¸¦ ¸ðµÎ Maildir¿¡ º¸°üÇÕ´Ï´Ù.
:0w							 
|safecat Maildir/tmp Maildir/new

Len Budney°¡ ½è°í, http://www.pobox.com/~lbudney/linux/software/safecat.html¿¡ À¥ÆäÁö¸¦ ¿î¿µÇϰí ÀÖ½À´Ï´Ù.

A.2.11. maildrop

procmail°ú À¯»çÇÑ ¸ÞÀÏÇÊÅÍÀÔ´Ï´Ù. (ÆÐÄ¡¸¦ ÇÏÁö¾ÊÀº) procmailÀÌ °®Áö ¾ÊÀº Ư¡ Çϳª´Â maildir¸ÞÀϺ¹½º¸¦ Áö¿øÇÑ´Ù´Â °ÍÀÔ´Ï´Ù.

Sam VarshavchikÀÌ ½è°í, http://www.flounder.net/~mrsam/maildrop¿¡ À¥ÆäÁö¸¦ ¿î¿µÇÕ´Ï´Ù.