{"id":584,"date":"2020-04-15T13:53:04","date_gmt":"2020-04-15T04:53:04","guid":{"rendered":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=584"},"modified":"2025-08-22T17:49:46","modified_gmt":"2025-08-22T08:49:46","slug":"ec2-%ec%9d%b8%ec%8a%a4%ed%84%b4%ec%8a%a4%ec%97%90%ec%84%9c-%ec%9d%b4%eb%a9%94%ec%9d%bc-%eb%b0%9c%ec%86%a1%ec%a0%9c%ed%95%9c-%ed%95%b4%ec%a0%9c%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=584","title":{"rendered":"sendmail (4\/4) &#8211; EC2 \uc778\uc2a4\ud134\uc2a4\uc5d0\uc11c \uc774\uba54\uc77c \ubc1c\uc1a1\uc81c\ud55c \ud574\uc81c\ud558\uae30"},"content":{"rendered":"<h1>sendmail (4\/4) &#8211; sendmail &#8211; EC2 \uc778\uc2a4\ud134\uc2a4\uc5d0\uc11c \uc774\uba54\uc77c \ubc1c\uc1a1\uc81c\ud55c \ud574\uc81c\ud558\uae30<\/h1>\n<h2>\uc774\uba54\uc77c\uc11c\ubc84 \uc124\uc815\ud558\uae30<\/h2>\n<p>\uba54\uc77c\uc11c\ubc84\uc5d0 SPF, DKIM, DMARC, TLS \ub4f1\uc744 \uc124\uc815\ud574 \uc90d\ub2c8\ub2e4.<\/p>\n<p>AWS \uc5d0 \ud574\uc81c\uc2e0\uccad\uc744 \ud558\uae30 \uc704\ud574\uc11c\ub3c4 \ud544\uc694\ud558\uace0, \ud574\uc81c\ub41c \uc774\ud6c4\uc5d0\ub3c4 \ubc1b\ub294 \uba54\uc77c\uc11c\ubc84\uc5d0\uc11c \uc2a4\ud338\ud568\uc73c\ub85c \ubd84\ub958\ub418\uc9c0 \uc54a\uae30 \uc704\ud574\uc11c\ub3c4 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<p>\uba54\uc77c\uc11c\ubc84\uc758 \ub3c4\uba54\uc778\uc774 <code>mail.example.com<\/code> \uc544\uc774\ud53c\uac00 <code>111.222.333.444<\/code> \uc774\ub77c\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.<\/p>\n<p><code>111.222.333.444<\/code> \ub294 <code>Elastic IP<\/code> \uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2>\ud574\uc81c \uc2e0\uccad\ud558\uae30<\/h2>\n<p><a href=\"https:\/\/aws.amazon.com\/ko\/premiumsupport\/knowledge-center\/ec2-port-25-throttle\/\">\uc5ec\uae30<\/a> \ub97c \ucc38\uc870\ud558\uc5ec \ud574\uc81c\uc2e0\uccad\uc11c\ub97c \uc791\uc131\ud569\ub2c8\ub2e4.<\/p>\n<p><a href=\"https:\/\/console.aws.amazon.com\/support\/contacts?#\/rdns-limits\">\ud574\uc81c \uc2e0\uccad\uc11c \uc791\uc131<\/a><\/p>\n<p><a href=\"https:\/\/www.skyer9.pe.kr\/wordpress\/wp-content\/uploads\/2020\/04\/20200415-01-1.png\"><img decoding=\"async\" src=\"https:\/\/www.skyer9.pe.kr\/wordpress\/wp-content\/uploads\/2020\/04\/20200415-01-1.png\" alt=\"\" \/><\/a><\/p>\n<h3>Email address<\/h3>\n<p>\ubcc4\ub85c \uc911\uc694\ud558\uac8c \uc0dd\uac01\ud558\uc9c0\ub294 \uc54a\ub294 \ub4ef \ud569\ub2c8\ub2e4.<\/p>\n<p>\uadf8\ub0e5 <code>noreply@example.com<\/code> \uc815\ub3c4\ub85c \uc801\uc5b4\uc8fc\uba74 \ub429\ub2c8\ub2e4.<\/p>\n<h3>Use case description<\/h3>\n<p>\uc5ec\uae30\ub97c \uc798 \uc791\uc131\ud574\uc57c \ud569\ub2c8\ub2e4. \uc5ec\uae30\uc5d0 \uae30\uc7ac\ub418\uc5b4\uc57c \ud560 \ub0b4\uc6a9\uc740 \ub450\uac00\uc9c0\uc785\ub2c8\ub2e4.<\/p>\n<p>\ud558\ub098\ub294 \uc5b4\ub5a4 \uc6a9\ub3c4\ub85c \uc774\uba54\uc77c \ubc1c\uc1a1\uae30\ub2a5\uc774 \uc4f0\uc5ec\uc9c0\ub294\uc9c0 \uc785\ub2c8\ub2e4. \uc11c\ubc84 \ub178\ud2f0\ub97c \ubc1b\uae30 \uc704\ud574\uc11c \uc4f4\ub2e4\uac70\ub098, \uc774\uba54\uc77c \uc218\uc2e0 \ub3d9\uc758\ub97c \ubc1b\uc740 \uace0\uac1d\uc5d0\uac8c \ubc1c\uc1a1\ud55c\ub2e4\uac70\ub098 \ub4f1\uc758 \ub0b4\uc6a9\uc744 \uc501\ub2c8\ub2e4.<\/p>\n<p>\ub2e4\uc74c\uc740 \uc774\uba54\uc77c \uc778\uc99d\ubc29\uc2dd\uc744 \uc5b4\ub5a4\uac78 \uc37c\ub294\uc9c0 \uae30\uc7ac\ud569\ub2c8\ub2e4. SPF, DKIM, DMARC, TLS \ub4f1\uc744 \uc774\uc6a9\ud55c\ub2e4 \ub77c\uace0 \uc368\uc8fc\uba74 \ub429\ub2c8\ub2e4.<\/p>\n<p>\ud639\uc2dc\ub098&#8230; \uc2a4\ud338\uba54\uc77c \ubc1c\uc1a1\ub4f1\uc758 \uc6a9\ub3c4\ub85c \uc4f0\ub2e4\uac00 AWS \uc5d0 \uc2e0\uace0\ub418\uba74 \uc0c1\ub2f9\ud55c \ubd88\uc774\uc775\uc744 \ubc1b\uc744 \uc218 \uc788\uc73c\ub2c8 \uc870\uc2ec\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n<h3>Elastic IP address<\/h3>\n<p>\uc635\uc158\uc774\ub77c\uace0 \uc368\uc788\uc9c0\ub9cc \ud544\uc218\uc785\ub2c8\ub2e4. \uc704\uc758 <code>111.222.333.444<\/code> \ub97c \uc785\ub825\ud574 \uc90d\ub2c8\ub2e4.<\/p>\n<h3>Reverse DNS record<\/h3>\n<p>\uc635\uc158\uc774\ub77c\uace0 \uc368\uc788\uc9c0\ub9cc \ud544\uc218\uc785\ub2c8\ub2e4. \uc704\uc5d0 <code>mail.example.com<\/code> \ub97c \uc785\ub825\ud574 \uc90d\ub2c8\ub2e4.<\/p>\n<h2>\uae30\ub2e4\ub9ac\uae30<\/h2>\n<p>\uc815\uc0c1\uc801\uc73c\ub85c \uc811\uc218\uac00 \ub418\uc5c8\ub2e4\uba74 1-2\uc2dc\uac04 \uc548\ucabd\uc73c\ub85c \uc2b9\uc778\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2b9\uc778\uc740 \uc774\uba54\uc77c\ub85c \ud1b5\ubcf4\ub429\ub2c8\ub2e4.<\/p>\n<pre><code class=\"language-bash\">To: root@ip-172-31-12-127<\/code><\/pre>\n<p>\uc9c0\uba54\uc77c\ub85c \uc654\ub2e4\uace0 \uae30\uc5b5\ud588\ub294\ub370, \uc774\ubc88\uc5d0\ub294 root \uacc4\uc815\uc73c\ub85c \uba54\uc77c\uc774 \uc624\ub294\uad70\uc694.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>sendmail (4\/4) &#8211; sendmail &#8211; EC2 \uc778\uc2a4\ud134\uc2a4\uc5d0\uc11c \uc774\uba54\uc77c \ubc1c\uc1a1\uc81c\ud55c \ud574\uc81c\ud558\uae30 \uc774\uba54\uc77c\uc11c\ubc84 \uc124\uc815\ud558\uae30 \uba54\uc77c\uc11c\ubc84\uc5d0 SPF, DKIM, DMARC, TLS \ub4f1\uc744 \uc124\uc815\ud574 \uc90d\ub2c8\ub2e4. AWS \uc5d0 \ud574\uc81c\uc2e0\uccad\uc744 \ud558\uae30 \uc704\ud574\uc11c\ub3c4 \ud544\uc694\ud558\uace0, \ud574\uc81c\ub41c \uc774\ud6c4\uc5d0\ub3c4 \ubc1b\ub294 \uba54\uc77c\uc11c\ubc84\uc5d0\uc11c \uc2a4\ud338\ud568\uc73c\ub85c \ubd84\ub958\ub418\uc9c0 \uc54a\uae30 \uc704\ud574\uc11c\ub3c4 \ud544\uc694\ud569\ub2c8\ub2e4. \uba54\uc77c\uc11c\ubc84\uc758 \ub3c4\uba54\uc778\uc774 mail.example.com \uc544\uc774\ud53c\uac00 111.222.333.444 \uc774\ub77c\uace0 \uac00\uc815\ud569\ub2c8\ub2e4. 111.222.333.444 \ub294 Elastic IP \uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4. \ud574\uc81c \uc2e0\uccad\ud558\uae30 \uc5ec\uae30 \ub97c \ucc38\uc870\ud558\uc5ec \ud574\uc81c\uc2e0\uccad\uc11c\ub97c \uc791\uc131\ud569\ub2c8\ub2e4.\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=584\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-584","post","type-post","status-publish","format-standard","hentry","category-sendmail"],"_links":{"self":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=584"}],"version-history":[{"count":7,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/584\/revisions"}],"predecessor-version":[{"id":10741,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/584\/revisions\/10741"}],"wp:attachment":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}