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ÅäÖøßЧµÄSendmail·þÎñÆ÷




SendmailÊÇÒ»¸öºÜÊÜ»¶Ó­µÄSMTP·þÎñÆ÷£¬ÔÚÆóÒµ»·¾³ÖУ¬ÎÞÂÛÊÇÖ»ÓÐÉÙÁ¿Óû§»¹ÊÇÊýÒÔǧ¼ÆµÄ¹ÍÔ±Ëü¶¼¿ÉÒÔÁé»îµÄ¸øÒÔ×ã¹»Ö§³Ö
¡£ËüÒ²ÊǸö¸´ÔÓµÄÈí¼þ£¬ÔÚÄãµÄLinux·þÎñÆ÷ÉÏÅäÖÃSendmailÒÔʹËüÔËÐÐÆðÀ´²¢²»ÊÇÒ»¼þÈÝÒ×µÄÊ¡£¾¡¹ÜSendmailµÄ¿ª·¢ÕßÒ»Ö±ÊÔͼʹÅäÖùý³Ì¼òµ¥»¯£¬µ«ÄãËùÔÚ¹«Ë¾µÄÐèÇó½«×îÖÕ¾ö¶¨ÅäÖÃÒ»¸ö¸ßЧµÄSendmail·þÎñÆ÷µÄÄѶȡ£

ÎÒµÄÎÄÕ¡°ÔÚLinuxÖÐÅäÖÃSendmail·þÎñÆ÷¡±»Ø¹ËÁË×î³õµÄ°²×°¹ý³ÌÒÔ¼°ÔÚLinuxÖÐÅäÖúÍÔËÐÐSendmailËùÒªÓõ½µÄһЩ»ù´¡ÅäÖÃÎļþ¡£ÕâÆªÎÄÕ½«¸æËßÄãÔõÑù½øÒ»²½ÕÆÎÕ»ù´¡µÄÅäÖÃÎļþ²¢ÇÒ½âÊͽ«SendmailÅäÖóÉһ̨¿É¿¿µÄSMTP·þÎñÆ÷µÄ²½Öè¡£

ÅäÖÃÎļþ

´Ó8.9°æ±¾¿ªÊ¼£¬SendmailËù±ØÐèµÄËùÓÐÅäÖÃÎļþ¶¼·ÅÔÚĿ¼/etc/mail/Ï£¬¶øÇÒÃüÃû¹æÔòÓÐЩ¸Ä±ä¡£Èç¹ûÄãÓõÄÊÇÀϰ汾£¬Çë×¢Òâ±í¸ñA¡£

Pre-Sendmail 8.9 location
/etc/sendmail/sendmail.cw
/etc/aliases
/etc/sendmail.ct
/etc/sendmail.hf

Sendmail 8.9+ location
/etc/mail/local-host-names
/etc/mail/aliases
/etc/mail/trusted-users
/etc/mail/helpfile

Ö÷ÅäÖÃÎļþ»¹ÊÇ/etc/mail/sendmail.cf¡£Õâ¸öÎļþÊÇÔÚ³õʼ°²×°Ê±ÓÉsendmail.mc´´½¨µÄ¡£ËüÔÊÐíSendmail¸ù¾ÝÖîÈçOSTYPEºÍMAILERÕâÑùµÄһЩѡÏîÀ´ÍƶÏ×Ô¼ºµÄ³õʼÅäÖá£

ËäÈ»´ó¶àÊýÈ˶¼²»ÐèÒªÖØÐ±༭Ö÷ÅäÖÃÎļþ£¬µ«ÓÐЩÈË»¹ÊÇҪͨ¹ýÕâЩ»ÞɬÄѶ®µÄÓï·¨À´´´½¨ÐµÄSendmail¹ÜÀíÔ±ÕË»§¡£È»¶ø£¬Õñ×÷ÆðÀ´£¬ÊÂÇé²¢²»Ïó¿ªÊ¼¿´µ½µÄÄÇôÔã¡£

Ê×ÏÈ£¬ÎÒÃÇĬÈÏSendmailÒѾ­°²×°²¢ÇÒÊdzõʼµÄÉèÖÃ״̬¡£ÆÕͨÈËÔÚµÚÒ»´Î°²×°Ê¹ÓÃSendmaiʱ£¬×ÜÊÇ»áÔËÐÐÒ»¸ö¿ª·ÅµÄÖм̣¬ÕâÑù×öʹµÃºÜÈÝÒ×±»ÎÞÁĵÄÈË·¢ÏÖ²¢ÀûÓá£ÏÖÔÚÄãͨ¹ýÐÞ¸Ä/etc/mail/relay-domainsÎļþ¿ÉÒÔºÜÈÝÒ×µÄÖ¸¶¨¿ÉÒÔͨ¹ýÄãµÄ·þÎñÆ÷µÄµØÖ·¡£ÔÚÕâ¸öÎı¾ÎļþÖÐÁгöÁË¿ÉÒÔͨ¹ýÄãµÄ·þÎñÆ÷·¢Ë͵ç×ÓÓʼþµÄÖ÷»úÃû¡£¶Ô´ó¶àÊý¹«Ë¾¶øÑÔ£¬Ö»ÐèÒªÁгö±¾µØÖ÷»úÃûºÍ±ðÃû£¬µ«´óһЩµÄ¹«Ë¾¿ÉÄÜÐèÒªÌí¼Ó´óÁ¿Ö÷»ú¡£

ÕâÒ»²½ºÜÖØÒª£¬ÉèÖÃRealtime Blackhole Lists(RBLs)Ìí¼ÓȨÏÞ¡£Èç¹ûÄãÒ»¸öÏëµ·ÂÒµÄÈËʹÓÃÄãµÄ·þÎñÆ÷²¢ÇÒÀûÓÃÁбíÖеÄÐÅÏ¢À´·¢ËÍÀ¬»øÓʼþ£¬¾Í»áÒýÆð·¢ËÍʧ°ÜºÍ550´íÎó£¬Ö±µ½Ä㽫Æä´ÓÁбíÖÐɾȥ¡£ËùÒÔ×îºÃÊÇÖ»½«ÄÇЩÓÐȨ·ÃÎÊSendmailȨÏÞµÄÖ÷»úдÔÚÁбíÖС£
¶Ô·þÎñÆ÷¶øÑÔ£¬/etc/mail/local-host-namesÎļþÊǺÜÓÐÓõÄ
¡£½«FEATURE(use_cw_file)°üº¬ÔÚÄãµÄsendmail.mcÎļþµ±ÖУ¬Sendmail½«Óñ¾µØÖ÷»úÃûÀ´×÷ΪÄãµÄ±¾µØ±ðÃû¡£

# local-host-names - aliases for your server
example.com
www.example.com
mail.example.com
otherdomain.com

Èç¹ûSendmailûÓÐÔÚÊÕ¼þÁбíÖз¢ÏÖÏàÓ¦µÄÖ÷»úÃû£¬Ëü½«¾Ü¾ø½ÓÊܶԷ½·¢À´µÄÓʼþ¡£Çë¼ÇסÔÚÐÞ¸ÄÁËÕâ¸ö»òÆäËûÈκÎÅäÖÃÎļþºóÄã±ØÐëÖØÆôSendmail¡£ÕâЩÐ޸ĿÉÒÔÕâÑùÍê³É£¬ÖØÐÂÆô¶¯/etc/init.d/sendmail»ò·¢ËÍÃüÁîkill ¨C1

±ðÃû

Îļþ/etc/mail/aliasesÔÊÐíΪ±¾µØÓû§£¬Ó¦ÓóÌÐò£¬ÉõÖÁÆäËû±ðÃûÌṩÐéÄâÓÊÏ䣺

# Basic system aliases
MAILER-DAEMON: postmaster
postmaster: root

# General redirections for pseudo accounts
bin: root
daemon: root

# Well-known aliases
manager: root
webmaster: tnooning, bmarley, hsimpson
complaints: /var/log/complaints
sysadmin: root

Äã»á·¢ÏÖWeb¹ÜÀíÔ±±ðÃûÓжàÖØÊÕ¼þÈËÁÐ±í¡£ÕâÊÇÕýÈ·µÄ¡£Ö»ÒªÈ·±£ËùÓеı¾µØÓû§Ãû¶¼ÊÇÓöººÅ¸ô¿ªµÄ¡£¶øÇÒ£¬ÓйرðÃûµÄÒâ¼û½«»áÒÔµç×ÓÓʼþµÄÐÎʽ·¢µ½/var/log/complaintsÎļþÖС£ÕâÊÇÎÒ×î½ü·¢ÏֵIJ¢ÇÒÒѾ­¿ªÊ¼´óÁ¿Ó¦Óá£ÐèҪעÒâµÄÊ£¬ÔÚÄãÐÞ¸ÄÁ˱ðÃûÎļþÖ®ºó£¬Äã±ØÐëÖ´ÐÐеıðÃû¡£ÕâÊÇSendmail×Ô´øµÄ³ÌÐò£¬¿ÉÒÔ¸ù¾Ý±ðÃûÎļþ´´½¨±ØÒªµÄÊý¾Ý¿â¡£
ÉèÖÿÉÐÅÈÎÓû§

Õâ¸ö¿ÉÑ¡µÄÌØÐÔÔÚsendmail.mcÖеÄÃû³ÆÎªuse_ct_file
¡£Õâ¸öÁбíÖеÄÓû§¿ÉÒԸıäµç×ÓÓʼþµÄ¼Ä¼þÈË¡£ÔÚ/etc/mail/trusted-usersÎļþÖÐÿ¸öÓû§ÃûÕ¼Ò»ÐС£Õâ¶ÔÔËÐÐÔÚÄãµÄ·þÎñÆ÷ÉϵĽű¾»òÓ¦ÓóÌÐò¸øÄ³¸öÈË»ò×é·¢ÐÅÏ¢ÊǷdz£ÓÐÓõġ£Ëü¿ÉÒÔ¸üÈÝÒ׵ĿìËÙʶ±ðÒ»¸öµç×ÓÓʼþµÄÐÅÏ¢¡£ÀýÈ磬һ¸ö²éѯDNS·þÎñÆ÷µÄ½Å±¾ºÍÓʼþ´íÎó¿ÉÒÔÓÉdns_failures@example.com·¢³ö¡£

ÐéÄâÓû§±í¸ñ

ÐéÄâÓû§±í¸ñ(/etc/mail/virtusertable)ÏòÄã·þÎñÆ÷ÉϵÄÕæÊµÓÊÏä·¢ËÍÐéÄâÓòºÍÓÊÏäµÄÓʼþ¡£ÕâЩÓÊÏä¿ÉÒÔÊDZ¾µØµÄ£¬Ô¶³ÌµÄ£¬»òÊÇÓÉ/etc/mail/aliases¶¨ÒåµÄ±ðÃû¡£ÕâЩÊÇÔÚÄãµÄsendmail.mcÎļþÖÐÒ»ÃüÁîÐеÄÐÎʽ½øÐгõʼÅäÖõġ£Õâ¸öÎļþÒ»°ãΪ£º

root@example.com root
webmaster@example.com webguru@example2.com
@example.com tom

ÔÚÒÔÉϵÄÀý×ÓÖУ¬ÎÒÃÇÒѾ­ÓÐÁËÒ»¸öexample.comÎļþ¡£µÚÒ»ÐÐroot@example.comÓÃÀ´¶¨Î»±¾µØÓÊÏäλÖá£ÏÂÒ»ÐеÄwebmaster@example.comÊÇÖ¸Ô¶³ÌÓʼþµØÖ·webguru@example2.com¡£@example.comÊÇÒ»¸öͨÅä·û,ËüÔÊÐíÈκÎÓû§Ãû½ÓÊÜÒÔ@example.com½áβ·¢ËÍÀ´µÄÓʼþ¡£Òò´Ë£¬ÈκÎÏòexample.com·¢Ë͵ÄÓʼþ¶¼´æ·ÅÔÚ±¾µØÓÊÏäÖС£

RBLs

RBLsÊÇÓɹ«ÖÚ×é֯ά»¤µÄÊý¾Ý¿â£¬ËûÃǵÄÄ¿±êÊÇŬÁ¦×èÖ¹·þÎñÆ÷±»³ÖÐø²»¶ÏµÄÎÞÁĵÄÀ¬»øÓʼþËùÑÍû¡£¼´Ê¹ÊǽñÌ죬ÕâÑùµÄÊÂÇ黹ÊÇʱ³£·¢Éú£¬°üÀ¨ºÜÊÜ»¶Ó­µÄhttp://www.orbz.org/, http://relays.osirusoft.com/, ºÍhttp://mail-abuse.org/rbl/£¬Äã¿É ... dmail·ÃÎÊÕâЩվµã£º

FEATURE(rbl, `rbl.example.org¡¯, `Rejected ¨C see http://example.org/¡¯)

Èç¹ûÕâ¸öÌØÐԳɹ¦Ö´ÐУ¬Ëü½«¼ìÑéÿ¸ö·¢ÏòÄãµÄ·þÎñÆ÷µÄÓʼþ£¬ÔÚRBLÖвéÕÒ¶Ô·½µÄµØÖ·£¬ÒÔ¾ö¶¨ÊÇ·ñ½ÓÊÜÕâ·âÓʼþ¡£ÔÚÉÏÃæµÄÀý×ÓÖУ¬µ±ÓÐÓʼþ±»¾Ü¾øÊ±£¬½«³öÏÖÒ»¸öʧ°ÜÐÅÏ¢£¬È»ºóÒýµ¼Óû§ÔÚhttp://example.org/ÉϲéÕÒÏàÓ¦Ô­Ò ... Ä´óÐÍÕ¾µãÌØ±ðÓÐÓá£
¹ÜÀíSendmail

Èç¹ûÄãϰ¹ßÓÚÔÚLinuxÖÐÖ´ÐгÌÐò£¬Äã¿ÉÄÜÒ²»á¾­³£¼ì²éÈÕÖ¾Îļþ
¡£SendmailºÜºÃµÄÀûÓõÄËüµÄÈÕÖ¾Îļþ£¬Äã¿ÉÒÔ×·²¶µ½´ó²¿·ÖÎÊÌâµÄËùÔÚ¡£mail.logºÍmail.errÊÇÄãÐèҪעÒâµÄÁ½¸öÖ÷ÒªÎļþ£¬»¹ÓоÍÊÇail.warnºÍmail.info¡£ÕâЩÎļþÓÐÐí¶à¹²Í¬Ö®´¦£¬ËùÒÔÎÒÒ»°ãÖ»¿´Ç°Á½¸öÎļþ¡£Ò»°ã¶øÑÔ£¬Äã¿ÉÒÔÔÚ /var/log/ÏÂÕÒµ½ÕâЩÎļþ£¬¶ÔÌØ¶¨µÄϵͳºÍLinux°æ±¾£¬¿ÉÄÜÔÚÆäËûĿ¼Ï¡£Èç¹û±ØÒªµÄ»°£¬Äã¿ÉÒԲ쿴/etc/syslog.confÎļþ¡£µäÐ͵ĵç×ÓÓʼþ³É¹¦·¢ËÍÒ»°ãÊÇÕâÑùµÄ£º

Oct 25 18:22:14 example sendmail[29322]: SAA29322: from=user, size=193, class=0, pri=60193, nrcpts=2, msgid=<200110260122.SAA29322@example.com>, relay=user@local

Oct 25 18:22:14 example sendmail[29324]: SAA29322: to=help@techsupport.net, ctladdr=user (500/1000), delay=00:00:00, xdelay=00:00:00, mailer=local, stat=Sent

Äã¿ÉÒÔÔÚmail.log¿´µ½ºÍÏÂÃæÀàËÆµÄ¾Ü¾øÐÅÏ¢£º

Oct 23 14:23:51 example sendmail[27467]: OAA27467: ruleset=check_rcpt, arg1=, relay=west1.mail-abuse.org [204.152.186.193], reject=550 ... Relaying denied

ͨ³££¬ÄãËùÐèÒªµÄËùÓÐÐÅÏ¢¶¼´æ´¢ÔÚÕâЩÈÕÖ¾ÎļþÖУ¬°üÀ¨Óû§Ãû£¬Ö÷»úÃû£¬³ö´í´úÂë¡£ÕâЩ³ö´í´úÂëºÜÓÐÓô¦£¬¿ÉÒÔͨ¹ýÕâЩÈÃÄã¶Ô×Ô¼ºÓиüºÃµÄÁ˽⡣

×ܽá

SendmailÊÇÎÒÃÇĿǰʹÓõÄ×îÁ÷ÐеÄSMTP·þÎñÆ÷Ö®Ò»¡£ÎÞÂÛÊÇÖ»ÓÐÉÙÊýÓû§»¹ÊǶÔÓÐÊýǧ¹ÍÔ±µÄ´ó¹«Ë¾Ëü¶¼ÏÔµÃÓÎÈÐÓÐÓࡣͨ¹ýʹÓü¯ÖÐʽµÄ½á¹¹Ä¿Â¼ºÍ²»¶ÏÔöÇ¿µÄÓï·¨¹¦ÄÜ£¬Õû¸ö½á¹¹±äµÃ¼òµ¥Ã÷ÁË¡£ÄãÏÖÔÚÓ¦¸Ã¿ÉÒÔ¸üºÃµÄÁ˽âSendmailµÄÅäÖúÍʹÓõÄÈÕÖ¾Îļþ£¬¿ÉÒÔΪÄãµÄ¹«Ë¾ÅäÖÃÒ»¸öSMTP·þÎñÆ÷ÁË¡£





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