\uadf8\ub9cc\ud07c SMTP \uc5f0\uacb0<\/b> \uc804\uc1a1 \uc81c\uc5b4 \ud504\ub85c\ud1a0\ucf5c(Transmission Control Protocol..)\uc758 \uc57d\uc790\uc778 TCP \uc5f0\uacb0\uc744 \uae30\ubc18\uc73c\ub85c \ud569\ub2c8\ub2e4. SMTP \ub610\ub294 Simple Mail Transfer Protocol\uc740 \ubc1c\uc2e0\uc790\uc640 \uc218\uc2e0\uc790 \uac04\uc5d0 \ubc1c\uc2e0 \uc774\uba54\uc77c\uc744 \ubcf4\ub0b4\uace0 \ubc1b\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc785\ub2c8\ub2e4. \uc774\uba54\uc77c\uc774 \uc804\uc1a1\ub418\uba74 SMTP\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc778\ud130\ub137\uc744 \ud1b5\ud574 \ud55c \uc11c\ubc84\uc5d0\uc11c \ub2e4\ub978 \uc11c\ubc84\ub85c \uc804\uc1a1\ub429\ub2c8\ub2e4. \uac04\ub2e8\ud788 \ub9d0\ud574\uc11c, SMTP \uc774\uba54\uc77c<\/b> SMTP \uc11c\ubc84\ub97c \ud1b5\ud574 \uc804\uc1a1\ub418\ub294 \uc774\uba54\uc77c\uc77c \ubfd0\uc785\ub2c8\ub2e4.<\/p>\n
<\/p>\n
\uadf8\ub9cc\ud07c SMTP \uc11c\ubc84<\/b> at Yahoo\ub294 SMTP \uc11c\ubc84\uac00 \uc9c0\uc6d0\ud560 \uc218 \uc788\ub294 \uc11c\ube44\uc2a4\uc640 \ud568\uaed8 \ucf54\ub4dc "250"\uc73c\ub85c \uc751\ub2f5\ud558\uc5ec EHLO \uba54\uc2dc\uc9c0\ub97c \uc2b9\uc778\ud569\ub2c8\ub2e4.. \uba54\uc2dc\uc9c0 \uc804\uc1a1\uc774 \uc2dc\uc791\ub418\uae30 \uc804\uc5d0 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84\uac00 \uc9c0\uc6d0\ud560 \uc218 \uc788\ub294 \uc11c\ube44\uc2a4 \ubc0f \uae30\ub2a5\uc5d0 \ub3d9\uc758\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uadf8\ub798\uc11c \ubc25\uc774 \ub7a9\ud0d1\uc5d0 \uc4f4 \uc774\uba54\uc77c \uba54\uc2dc\uc9c0\ub294 \uc568\ub9ac\uc2a4\uac00 \uadf8\uac83\uc744 \uc9d1\uc5b4\ub4e4\uace0 \uc77d\uc744 \ub54c\uae4c\uc9c0 \uae30\ub2e4\ub9ac\ub294 \uc57c\ud6c4 \uba38\uc2e0\uc5d0\uc11c \ub05d\ub09c\ub2e4. \uadf8\ub7ec\ub098 \ud55c \uac00\uc9c0 \uc544\uc9c1 \ube60\uc838 \uc788\uc2b5\ub2c8\ub2e4. SMTP \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 SMTP \uc11c\ubc84 \uac04\uc758 \uc5f0\uacb0\uc774 \ub2eb\ud600 \uc788\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n
\uba3c\uc800 Bob\uc758 \uc774\uc57c\uae30\uc5d0 \ub300\ud574 \uc774\uc57c\uae30\ud558\uace0 Gmail\uc5d0\uc11c \uadf8\uc758 \uba54\uc77c \uc11c\ubc84\ub85c \uadf8\uc758 \uc774\uba54\uc77c \uba54\uc2dc\uc9c0\ub97c \ubcf4\ub0b4\ubd05\uc2dc\ub2e4. SMTP \uc11c\ubc84\ub294 \uc774\uba54\uc77c \uc804\uc1a1\uc744 \ub2f4\ub2f9\ud558\ub294 \ucef4\ud4e8\ud130 \ub610\ub294 \uc571\uc785\ub2c8\ub2e4. SMTP(Simple Mail Transfer Protocol)\uc5d0 \ub530\ub77c \uc791\ub3d9\ud569\ub2c8\ub2e4. SMTP \uc11c\ubc84\ub294 \uc774\uba54\uc77c \ud074\ub77c\uc774\uc5b8\ud2b8\ub85c\ubd80\ud130 \uc774\uba54\uc77c\uc744 \uc218\uc2e0\ud569\ub2c8\ub2e4.<\/p>\n
\uadf8\ub7f0 \ub2e4\uc74c \ub2e4\ub978 SMTP \uc11c\ubc84\ub85c \uc804\ub2ec\ud558\uace0 \ub4e4\uc5b4\uc624\ub294 \uba54\uc77c \uc11c\ubc84\ub85c \uc804\ub2ec\ud569\ub2c8\ub2e4. SMTP(Simple Mail Transfer Protocol)\ub294 \uc885\ub2e8 \uac04 \uba54\uc2dc\uc9c0 \ubc30\ub2ec\uc744 \uae30\ubc18\uc73c\ub85c \ud569\ub2c8\ub2e4. SMTP(Simple Mail Transfer Protocol) \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \uc54c\ub824\uc9c4 \ud3ec\ud2b8 25\uc5d0\uc11c \ub300\uc0c1 \ud638\uc2a4\ud2b8\uc758 SMTP(Simple Mail Transfer Protocol) \uc11c\ubc84\uc5d0 \uc811\uc18d\ud558\uc5ec \uc804\uc790 \uba54\uc77c\uc744 \ubc30\ub2ec\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \uc11c\ubc84\uac00 220 READY FOR MAIL \uba54\uc2dc\uc9c0\ub97c \ubcf4\ub0bc \ub54c\uae4c\uc9c0 \uae30\ub2e4\ub9bd\ub2c8\ub2e4.<\/p>\n
220 \uba54\uc2dc\uc9c0\ub97c \uc218\uc2e0\ud55c \ud6c4 \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 HELO \uba85\ub839\uc744 \ubcf4\ub0c5\ub2c8\ub2e4. \uadf8\ub7ec\uba74 \uc11c\ubc84\ub294 250\uac1c\uc758 \uc694\uccad\ub41c \uba54\uc77c \uc791\uc5c5\uc73c\ub85c \uc751\ub2f5\ud569\ub2c8\ub2e4. \uc54c\uaca0\uc2b5\ub2c8\ub2e4. SMTP\uac00 \ubb34\uc5c7\uc778\uc9c0 \ub610\ub294 SMTP \uc11c\ubc84\uac00 \ubb34\uc5c7\uc778\uc9c0 \uc0dd\uac01\ud574\uc57c \ud569\ub2c8\ub2e4. SMTP \ud504\ub85c\ud1a0\ucf5c \ub610\ub294 \uc11c\ubc84 \uba54\uc77c \uc804\uc1a1 \ud504\ub85c\ud1a0\ucf5c\uc740 \ub514\uc9c0\ud138 \ud1b5\uc2e0, \uc989 \uc804\uc790 \uba54\uc77c \uc804\uc1a1 \ubc0f SMTP \uc11c\ubc84<\/b> \ubcf4\ub0b4\ub294 \uba54\uc77c \ubc1c\uc2e0\uc790\uc640 \uc218\uc2e0\uc790\ub97c \ubcf4\ub0b4\uac70\ub098 \ubc1b\uac70\ub098 \uc804\ud658\ud558\ub294 \uac83\uc774 \uc8fc\uc694 \uae30\ub2a5\uc778 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc785\ub2c8\ub2e4.<\/p>\n
\uc628\ub77c\uc778\uc5d0\ub294 \ubb34\ub8cc \uc774\uba54\uc77c\uc744 \ubcf4\ub0b4\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ubb34\ub8cc SMTP \uc11c\ubc84\uac00 \ub9ce\uc774 \uc788\uc2b5\ub2c8\ub2e4.. \ub354 \uc720\uc5f0\ud55c \uc774 \uc2dc\uc2a4\ud15c\uc740 \ubaa8\ubc14\uc77c \uc0ac\uc6a9\uc790\uac00 \uc0ac\uc6a9\ud558\uae30 \uc27d\uace0 \uc544\uc6c3\ubc14\uc6b4\ub4dc \ud2b8\ub798\ud53d\uc5d0 \ub300\ud574 \uad6c\uc131\ub41c SMTP \uc11c\ubc84\ub97c \uace0\uc815\uc801\uc73c\ub85c \uc120\ud0dd\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4. \uac1c\ubc1c\ub41c \uba54\uc77c \uc804\uc1a1 \uc5d0\uc774\uc804\ud2b8(MTA) sendmail\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 8\ube44\ud2b8\ub85c \uae54\ub054\ud558\uac8c \uad6c\ud604\ub418\uc5c8\uc73c\ubbc0\ub85c "8\ube44\ud2b8\ub9cc \ubcf4\ub0b4\uae30"\ub77c\ub294 \ub300\uccb4 \uc804\ub7b5\uc744 \uc0ac\uc6a9\ud558\uc5ec SMTP\ub97c \ud1b5\ud574 \uc784\uc758\uc758 \ud14d\uc2a4\ud2b8 \ub370\uc774\ud130(8\ube44\ud2b8 ASCII\uc640 \uc720\uc0ac\ud55c \ubb38\uc790 \uc778\ucf54\ub529)\ub97c \uc804\uc1a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc644\uc804\ud55c \uae30\ub2a5\uc744 \uac16\ucd98 SMTP \uc11c\ubc84\ub294 \uba54\uc2dc\uc9c0 \ub300\uae30\uc5f4\uc744 \uad00\ub9ac\ud558\uc5ec \uc77c\uc2dc\uc801\uc778 \uc911\ub2e8\uc744 \uc77c\uc73c\ud0a8 \uba54\uc2dc\uc9c0 \uc804\uc1a1\uc744 \uc7ac\uc2dc\ub3c4\ud569\ub2c8\ub2e4.<\/p>\n
1981\ub144 11\uc6d4 RFC 788\uc774 \ucd9c\uc2dc\ub41c \uc9c1\ud6c4\uc778 1982\ub144 4.1CBSD\uc640 \ud568\uaed8 \ucd9c\uc2dc\ub41c Sendmail\uc740 SMTP\ub97c \uad6c\ud604\ud55c \ucd5c\ucd08\uc758 \uba54\uc77c \uc804\uc1a1 \uc5d0\uc774\uc804\ud2b8 \uc911 \ud558\ub098\uc600\uc2b5\ub2c8\ub2e4. \ubcf4\ub0b8 \uc0ac\ub78c\uc758 \uc774\uba54\uc77c\uc744 \uc218\uc9d1\ud558\uc5ec \ub2e4\ub978 SMTP \uc11c\ubc84\uc778 \ubc1b\ub294 \uc0ac\ub78c\uc758 \ub85c\uceec \uc6b0\uccb4\uad6d\uc73c\ub85c \uc804\ub2ec\ud569\ub2c8\ub2e4. SMTP \ub9b4\ub808\uc774 \uc11c\ube44\uc2a4\ub294 \uc774\uba54\uc77c \uc804\ub2ec \uac00\ub2a5\uc131, IP \ube14\ub799\ub9ac\uc2a4\ud2b8 \ub4f1\uc758 \ub9ce\uc740 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\uba74 SMTP\ub294 \ubcf4\ub0b4\ub294 \ucef4\ud4e8\ud130\uc640 \ubc1b\ub294 \ucef4\ud4e8\ud130\uac00 \ubaa8\ub450 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \uc9c0\uc18d\uc801\uc73c\ub85c \uc5f0\uacb0\ub418\uc5b4 \uc788\uc744 \ub54c \uac00\uc7a5 \uc798 \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n
SMTP AUTH\ub294 \uc2a4\ud338 \ubc1c\uc1a1\uc790\uc640 \uac19\uc740 \uc2b9\uc778\ub418\uc9c0 \uc54a\uc740 \uc0ac\uc6a9\uc790\uc5d0 \ub300\ud55c \uc804\ub2ec \uc11c\ube44\uc2a4\ub97c \uac70\ubd80\ud558\uba74\uc11c \ud569\ubc95\uc801\uc778 \uc0ac\uc6a9\uc790\uac00 \uc774\uba54\uc77c\uc744 \uc804\ub2ec\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. SMTP \uc8fc\uc18c\ub294 \uc62c\ubc14\ub978 \ud1b5\uc2e0 \ucc44\ub110\uc744 \ud1b5\ud574 \uc774\uba54\uc77c \uba54\uc2dc\uc9c0\ub97c \uc62c\ubc14\ub978 \uc7a5\uce58 \ub610\ub294 \ub300\uc0c1\uc73c\ub85c \ubcf4\ub0b4\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. Pepipost SMTP\uc640 \uac19\uc740 \ud0c0\uc0ac \uc11c\ube44\uc2a4\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4. \ud6e8\uc52c \ub354 \uc548\uc815\uc801\uc785\ub2c8\ub2e4. \uc989\uc2dc WordPress \uc6f9\uc0ac\uc774\ud2b8\uc5d0 Pepipost\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. MailHog \ub610\ub294 MailCatcher\uc640 \uac19\uc740 \ub85c\uceec \uac00\uc9dc SMTP \uc11c\ubc84 \ub610\ub294 FakeSMTP \ub610\ub294 DevNull SMTP\uc640 \uac19\uc740 \ub370\uc2a4\ud06c\ud1b1 \uc571 \uc124\uc815\uc744 \uace0\ub824\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\ub2e8\uc21c \uba54\uc77c \uc804\uc1a1 \ud504\ub85c\ud1a0\ucf5c(SMTP) \u2013 SMTP \uc791\ub3d9 \ubc29\uc2dd \ub2e8\uc6d0\uc5d0\uc11c\ub294 \ub2e8\uc21c \uba54\uc77c \uc804\uc1a1 \ud504\ub85c\ud1a0\ucf5c(SMTP)\uc758 \uae30\ubcf8, \ub2e8\uc21c \uba54\uc77c \uc804\uc1a1 \ud504\ub85c\ud1a0\ucf5c(SMTP)\uacfc \uad00\ub828\ub41c RFC \ubc0f \ub2e8\uc21c \uba54\uc77c \uc804\uc1a1 \ud504\ub85c\ud1a0\ucf5c(SMTP)\uc758 \uc791\ub3d9 \ubc29\uc2dd\uc744 \ubc30\uc6c1\ub2c8\ub2e4. . STARTTLS \ud655\uc7a5\uc744 \uc0ac\uc6a9\ud558\uba74 SMTP \uc11c\ubc84 \uc9c0\uc6d0\uc774 \uc5f0\uacb0 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0 TLS \uc554\ud638\ud654 \ud1b5\uc2e0\uc744 \uc9c0\uc6d0\ud568\uc744 \uc54c\ub9ac\uace0 \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 STARTTLS \uba85\ub839\uc744 \ubcf4\ub0b4 \uc5f0\uacb0\uc744 \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4. \uc6d0\ub798 SMTP \ud504\ub85c\ud1a0\ucf5c\uc740 \uc778\uc99d\ub418\uc9c0 \uc54a\uc740 \uc554\ud638\ud654\ub418\uc9c0 \uc54a\uc740 7\ube44\ud2b8 ASCII \ud14d\uc2a4\ud2b8 \ud1b5\uc2e0\ub9cc \uc9c0\uc6d0\ud588\uc2b5\ub2c8\ub2e4. \uc0ac\uc18c\ud55c \uba54\uc2dc\uc9c0 \uac00\ub85c\ucc44\uae30(man-in-the-middle) \uacf5\uaca9, \uc2a4\ud478\ud551 \ubc0f \uc2a4\ud338\uc5d0 \ucde8\uc57d\ud558\uba70 \uc804\uc1a1\ub418\uae30 \uc804\uc5d0 \ubaa8\ub4e0 \ubc14\uc774\ub108\ub9ac \ub370\uc774\ud130\ub97c \uc77d\uc744 \uc218 \uc788\ub294 \ud14d\uc2a4\ud2b8\ub85c \uc778\ucf54\ub529\ud574\uc57c \ud569\ub2c8\ub2e4. SMTP\uc758 \uae30\uc6d0\uc740 1971\ub144\uc5d0 \uc2dc\uc791\ub418\uc5c8\uc73c\uba70 1981\ub144\uc5d0 \uad11\ubc94\uc704\ud558\uac8c \ub3c4\uc785\ub41c \uc774\ud6c4 \uc5ec\ub7ec \ubc88 \uc5c5\ub370\uc774\ud2b8, \uc218\uc815 \ubc0f \ud655\uc7a5\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n
\ub611\uac19\uc740 \uacfc\uc815\uc774\uc9c0\ub9cc Bob\uc758 \uc0ac\uc6a9\uc790 \uc5d0\uc774\uc804\ud2b8\ub294 SMTP \ud074\ub77c\uc774\uc5b8\ud2b8\uc774\uace0 Bob\uc758 \uba54\uc77c \uc11c\ubc84\ub294 SMTP \uc11c\ubc84\uc785\ub2c8\ub2e4.<\/p>\n
. .<\/p>","protected":false},"excerpt":{"rendered":"
SMTP \uc5f0\uacb0\uc740 \uc804\uc1a1 \uc81c\uc5b4 \ud504\ub85c\ud1a0\ucf5c(Transmission Control Protocol..)\uc758 \uc57d\uc790\uc778 TCP \uc5f0\uacb0\uc744 \uae30\ubc18\uc73c\ub85c \ud569\ub2c8\ub2e4. SMTP \ub610\ub294 Simple Mail Transfer Protocol\uc740 \ubc1c\uc2e0\uc790\uc640 \uc218\uc2e0\uc790 \uac04\uc5d0 \ubc1c\uc2e0 \uc774\uba54\uc77c\uc744 \ubcf4\ub0b4\uace0 \ubc1b\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc785\ub2c8\ub2e4. \uc774\uba54\uc77c\uc774 \uc804\uc1a1\ub418\uba74 SMTP\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc778\ud130\ub137\uc744 \ud1b5\ud574 \ud55c \uc11c\ubc84\uc5d0\uc11c \ub2e4\ub978 \uc11c\ubc84\ub85c \uc804\uc1a1\ub429\ub2c8\ub2e4. [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-215","post","type-post","status-publish","format-standard","hentry","category-smtp-simple-mail-transfer-protocol-faq"],"_links":{"self":[{"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/posts\/215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/comments?post=215"}],"version-history":[{"count":0,"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/posts\/215\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freesmtpserver.net\/ko\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"\uc6cc\ub4dc\ud504\ub808\uc2a4","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}