{"id":476978,"date":"2023-08-09T09:06:01","date_gmt":"2023-08-09T09:06:01","guid":{"rendered":""},"modified":"2023-09-05T11:13:46","modified_gmt":"2023-09-05T11:13:46","slug":"domainkeys-identified-mail","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/domainkeys-identified-mail\/","title":{"rendered":"Th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>Trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, email \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n li\u00ean l\u1ea1c thi\u1ebft y\u1ebfu cho c\u00e1c doanh nghi\u1ec7p, c\u00e1 nh\u00e2n v\u00e0 t\u1ed5 ch\u1ee9c. Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i email c\u0169ng \u0111\u00e3 thu h\u00fat nh\u1eefng k\u1ebb \u0111\u1ed9c h\u1ea1i t\u00ecm c\u00e1ch khai th\u00e1c c\u00e1c l\u1ed7 h\u1ed5ng c\u1ee7a n\u00f3. M\u1ed9t l\u1ed7 h\u1ed5ng nh\u01b0 v\u1eady l\u00e0 gi\u1ea3 m\u1ea1o email, trong \u0111\u00f3 k\u1ebb t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o danh t\u00ednh c\u1ee7a ng\u01b0\u1eddi g\u1eedi \u0111\u1ec3 \u0111\u00e1nh l\u1eeba ng\u01b0\u1eddi nh\u1eadn v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o ho\u1eb7c ph\u00e1t t\u00e1n ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, Th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a mi\u1ec1n (DKIM) \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u00e0m ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c email. DKIM cung c\u1ea5p m\u1ed9t c\u00e1ch \u0111\u1ec3 x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a email, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u00fang \u0111\u01b0\u1ee3c g\u1eedi th\u1ef1c s\u1ef1 b\u1edfi mi\u1ec1n \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn quy\u1ec1n s\u1edf h\u1eefu v\u00e0 kh\u00f4ng b\u1ecb gi\u1ea3 m\u1ea1o trong qu\u00e1 tr\u00ecnh truy\u1ec1n.<\/p>\n<h2>Ngu\u1ed3n g\u1ed1c c\u1ee7a th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n<\/h2>\n<p>Th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a mi\u1ec1n \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean b\u1edfi Yahoo! v\u00e0o n\u0103m 2004 v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF) c\u00f4ng b\u1ed1 d\u01b0\u1edbi d\u1ea1ng ti\u00eau chu\u1ea9n Internet (RFC 6376) v\u00e0o n\u0103m 2011. H\u1ec7 th\u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u1ea3i thi\u1ec7n b\u1ea3o m\u1eadt email b\u1eb1ng c\u00e1ch gi\u1ea3i quy\u1ebft c\u00e1c \u0111i\u1ec3m y\u1ebfu c\u1ee7a c\u00e1c ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c email kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 Khung ch\u00ednh s\u00e1ch ng\u01b0\u1eddi g\u1eedi ( SPF).<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a mi\u1ec1n<\/h2>\n<p>DKIM ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch li\u00ean k\u1ebft th\u01b0 email v\u1edbi m\u1ed9t mi\u1ec1n th\u00f4ng qua ch\u1eef k\u00fd m\u1eadt m\u00e3. Khi email \u0111\u01b0\u1ee3c g\u1eedi t\u1eeb mi\u1ec1n h\u1ed7 tr\u1ee3 DKIM, m\u00e1y ch\u1ee7 g\u1eedi s\u1ebd th\u00eam ch\u1eef k\u00fd \u0111i\u1ec7n t\u1eed v\u00e0o ti\u00eau \u0111\u1ec1 email. Ch\u1eef k\u00fd \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng kh\u00f3a ri\u00eang m\u00e0 ch\u1ec9 ch\u1ee7 s\u1edf h\u1eefu t\u00ean mi\u1ec1n m\u1edbi s\u1edf h\u1eefu. Sau khi nh\u1eadn \u0111\u01b0\u1ee3c email, m\u00e1y ch\u1ee7 c\u1ee7a ng\u01b0\u1eddi nh\u1eadn c\u00f3 th\u1ec3 x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a ch\u1eef k\u00fd b\u1eb1ng kh\u00f3a chung \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n trong b\u1ea3n ghi DNS c\u1ee7a mi\u1ec1n. N\u1ebfu ch\u1eef k\u00fd h\u1ee3p l\u1ec7 v\u00e0 tin nh\u1eafn kh\u00f4ng b\u1ecb thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n, ng\u01b0\u1eddi nh\u1eadn c\u00f3 th\u1ec3 tin t\u01b0\u1edfng v\u00e0o danh t\u00ednh c\u1ee7a ng\u01b0\u1eddi g\u1eedi v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a tin nh\u1eafn.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n<\/h2>\n<p>Ch\u1eef k\u00fd DKIM th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o d\u01b0\u1edbi d\u1ea1ng tr\u01b0\u1eddng ti\u00eau \u0111\u1ec1 trong email. Ti\u00eau \u0111\u1ec1 DKIM-Signature ch\u1ee9a th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u01b0\u1eddi nh\u1eadn x\u00e1c th\u1ef1c ch\u1eef k\u00fd. C\u1ea5u tr\u00fac c\u1ee7a ti\u00eau \u0111\u1ec1 DKIM-Signature bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh sau:<\/p>\n<ul>\n<li><strong>Phi\u00ean b\u1ea3n<\/strong>: S\u1ed1 phi\u00ean b\u1ea3n c\u1ee7a \u0111\u1eb7c t\u1ea3 ch\u1eef k\u00fd DKIM \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/li>\n<li><strong>Thu\u1eadt to\u00e1n<\/strong>: Thu\u1eadt to\u00e1n d\u00f9ng \u0111\u1ec3 t\u1ea1o ch\u1eef k\u00fd, th\u00f4ng th\u01b0\u1eddng l\u00e0 RSA.<\/li>\n<li><strong>Ch\u1eef k\u00fd<\/strong>: Ch\u1eef k\u00fd m\u1eadt m\u00e3 th\u1ef1c t\u1ebf.<\/li>\n<li><strong>B\u1ed9 ch\u1ecdn<\/strong>: M\u1ed9t chu\u1ed7i d\u00e0nh ri\u00eang cho mi\u1ec1n tr\u1ecf \u0111\u1ebfn v\u1ecb tr\u00ed c\u1ee7a kh\u00f3a chung trong b\u1ea3n ghi DNS.<\/li>\n<li><strong>H\u1ee3p th\u1ee9c h\u00f3a<\/strong>: Ch\u1ec9 \u0111\u1ecbnh c\u00e1ch chuy\u1ec3n \u0111\u1ed5i n\u1ed9i dung v\u00e0 ti\u00eau \u0111\u1ec1 email tr\u01b0\u1edbc khi t\u1ea1o ch\u1eef k\u00fd.<\/li>\n<li><strong>L\u00e3nh \u0111\u1ecba<\/strong>: Mi\u1ec1n k\u00fd k\u1ebft.<\/li>\n<li><strong>\u0110\u1ed9 d\u00e0i kh\u00f3a<\/strong>: K\u00edch th\u01b0\u1edbc c\u1ee7a kh\u00f3a k\u00fd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n<\/h2>\n<ul>\n<li><strong>X\u00e1c th\u1ef1c email<\/strong>: DKIM x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a ng\u01b0\u1eddi g\u1eedi email, gi\u1ea3m nguy c\u01a1 gi\u1ea3 m\u1ea1o email v\u00e0 t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o.<\/li>\n<li><strong>T\u00ednh to\u00e0n v\u1eb9n c\u1ee7a tin nh\u1eafn<\/strong>: B\u1eb1ng c\u00e1ch x\u00e1c th\u1ef1c ch\u1eef k\u00fd DKIM, ng\u01b0\u1eddi nh\u1eadn c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u1ed9i dung email kh\u00f4ng b\u1ecb thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n.<\/li>\n<li><strong>Kh\u00f4ng b\u00e1c b\u1ecf<\/strong>: DKIM cung c\u1ea5p t\u00ednh n\u0103ng ch\u1ed1ng ch\u1ed1i b\u1ecf, v\u00ec ng\u01b0\u1eddi g\u1eedi kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn vi\u1ec7c g\u1eedi tin nh\u1eafn sau khi n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00fd b\u1eb1ng kh\u00f3a ri\u00eang c\u1ee7a h\u1ecd.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n<\/h2>\n<p>Kh\u00f4ng c\u00f3 lo\u1ea1i DKIM ri\u00eang bi\u1ec7t nh\u01b0ng c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i c\u00e1c bi\u1ebfn th\u1ec3 trong c\u00e1ch tri\u1ec3n khai DKIM d\u1ef1a tr\u00ean c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111\u1ed9 d\u00e0i kh\u00f3a v\u00e0 thu\u1eadt to\u00e1n ch\u1eef k\u00fd. M\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef d\u00e0nh ri\u00eang cho DKIM bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Ti\u00eau \u0111\u1ec1 ch\u1eef k\u00fd DKIM<\/strong>: Ti\u00eau \u0111\u1ec1 ch\u1ee9a ch\u1eef k\u00fd DKIM trong email.<\/li>\n<li><strong>Chu\u1ea9n h\u00f3a DKIM<\/strong>: Qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u1ed9i dung v\u00e0 ti\u00eau \u0111\u1ec1 email th\u00e0nh d\u1ea1ng chu\u1ea9n tr\u01b0\u1edbc khi t\u1ea1o ch\u1eef k\u00fd.<\/li>\n<li><strong>B\u1ed9 ch\u1ecdn DKIM<\/strong>: M\u1ed9t chu\u1ed7i d\u00e0nh ri\u00eang cho mi\u1ec1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb kh\u00f3a chung trong b\u1ea3n ghi DNS.<\/li>\n<\/ul>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a mi\u1ec1n<\/h2>\n<p>DKIM \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 cung c\u1ea5p v\u00e0 t\u1ed5 ch\u1ee9c email \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt email. Vi\u1ec7c tri\u1ec3n khai n\u00f3 mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i \u00edch:<\/p>\n<ul>\n<li><strong>Gi\u1ea3m th\u01b0 r\u00e1c<\/strong>: M\u00e1y ch\u1ee7 email c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng DKIM \u0111\u1ec3 x\u00e1c minh ng\u01b0\u1eddi g\u1eedi h\u1ee3p ph\u00e1p, gi\u1ea3m kh\u1ea3 n\u0103ng email ch\u00ednh h\u00e3ng b\u1ecb \u0111\u00e1nh d\u1ea5u l\u00e0 th\u01b0 r\u00e1c.<\/li>\n<li><strong>S\u1ef1 b\u1ea3o v\u1ec7 nh\u00e3n hi\u1ec7u<\/strong>: DKIM ng\u0103n ch\u1eb7n k\u1ebb t\u1ea5n c\u00f4ng m\u1ea1o danh th\u01b0\u01a1ng hi\u1ec7u, b\u1ea3o v\u1ec7 danh ti\u1ebfng c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u v\u00e0 kh\u00e1ch h\u00e0ng kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng ph\u00e2n ph\u1ed1i n\u00e2ng cao<\/strong>: V\u1edbi vi\u1ec7c tri\u1ec3n khai DKIM th\u00edch h\u1ee3p, t\u1ef7 l\u1ec7 g\u1eedi email c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n v\u00ec c\u00e1c email \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c \u00edt c\u00f3 kh\u1ea3 n\u0103ng b\u1ecb ch\u1eb7n ho\u1eb7c b\u1ecb \u0111\u00e1nh d\u1ea5u l\u00e0 \u0111\u00e1ng ng\u1edd.<\/li>\n<\/ul>\n<p>Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 c\u00f4ng ngh\u1ec7 n\u00e0o, DKIM kh\u00f4ng ph\u1ea3i kh\u00f4ng c\u00f3 nh\u1eefng th\u00e1ch th\u1ee9c:<\/p>\n<ul>\n<li><strong>C\u1ea5u h\u00ecnh sai<\/strong>: DKIM \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ea5u h\u00ecnh kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ed1 g\u1eedi email, \u0111\u1eb7c bi\u1ec7t n\u1ebfu kh\u00f3a chung kh\u00f4ng \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n ch\u00ednh x\u00e1c trong b\u1ea3n ghi DNS.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd kh\u00f3a<\/strong>: X\u1eed l\u00fd kh\u00f3a ri\u00eang m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 lu\u00e2n chuy\u1ec3n ch\u00fang \u0111\u1ecbnh k\u1ef3 c\u00f3 th\u1ec3 l\u00e0 th\u00e1ch th\u1ee9c \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/strong>: M\u1ed9t s\u1ed1 m\u00e1y ch\u1ee7 email c\u00f3 th\u1ec3 kh\u00f4ng h\u1ed7 tr\u1ee3 DKIM, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf vi\u1ec7c x\u00e1c th\u1ef1c email th\u00edch h\u1ee3p.<\/li>\n<\/ul>\n<p>\u0110\u1ec3 gi\u1ea3m thi\u1ec3u nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, c\u00e1c t\u1ed5 ch\u1ee9c n\u00ean \u0111\u1ea3m b\u1ea3o qu\u1ea3n l\u00fd kh\u00f3a ph\u00f9 h\u1ee3p v\u00e0 th\u01b0\u1eddng xuy\u00ean gi\u00e1m s\u00e1t vi\u1ec7c tri\u1ec3n khai DKIM \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i.<\/p>\n<h2>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh DKIM v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 x\u00e1c th\u1ef1c email t\u01b0\u01a1ng t\u1ef1:<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng<\/th>\n<th>DKIM<\/th>\n<th>SPF (Khung ch\u00ednh s\u00e1ch ng\u01b0\u1eddi g\u1eedi)<\/th>\n<th>DMARC (X\u00e1c th\u1ef1c, b\u00e1o c\u00e1o v\u00e0 tu\u00e2n th\u1ee7 th\u01b0 d\u1ef1a tr\u00ean t\u00ean mi\u1ec1n)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ee5c \u0111\u00edch<\/td>\n<td>X\u00e1c th\u1ef1c email<\/td>\n<td>X\u00e1c th\u1ef1c ngu\u1ed3n email<\/td>\n<td>X\u00e1c th\u1ef1c v\u00e0 b\u00e1o c\u00e1o email<\/td>\n<\/tr>\n<tr>\n<td>C\u01a1 ch\u1ebf<\/td>\n<td>Ch\u1eef k\u00fd m\u1eadt m\u00e3<\/td>\n<td>Tra c\u1ee9u b\u1ea3n ghi d\u1ef1a tr\u00ean DNS<\/td>\n<td>X\u00e1c th\u1ef1c email d\u1ef1a tr\u00ean ch\u00ednh s\u00e1ch<\/td>\n<\/tr>\n<tr>\n<td>T\u00ednh to\u00e0n v\u1eb9n c\u1ee7a tin nh\u1eafn<\/td>\n<td>\u0110\u00fang<\/td>\n<td>KH\u00d4NG<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<tr>\n<td>C\u0103n ch\u1ec9nh t\u00ean mi\u1ec1n<\/td>\n<td>\u0110\u00fang<\/td>\n<td>\u0110\u00fang<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<tr>\n<td>B\u00e1o c\u00e1o v\u00e0 th\u1ef1c thi<\/td>\n<td>KH\u00d4NG<\/td>\n<td>KH\u00d4NG<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<tr>\n<td>Nh\u1eadn con nu\u00f4i<\/td>\n<td>\u00c1p d\u1ee5ng r\u1ed9ng r\u00e3i<\/td>\n<td>\u00c1p d\u1ee5ng r\u1ed9ng r\u00e3i<\/td>\n<td>T\u0103ng m\u1ee9c \u0111\u1ed9 ph\u1ed5 bi\u1ebfn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n<p>B\u1ed1i c\u1ea3nh b\u1ea3o m\u1eadt email kh\u00f4ng ng\u1eebng ph\u00e1t tri\u1ec3n v\u00e0 DKIM v\u1eabn l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu c\u1ee7a khung x\u00e1c th\u1ef1c email. Tuy nhi\u00ean, \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c m\u1ed1i \u0111e d\u1ecda m\u1edbi n\u1ed5i v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt h\u01a1n n\u1eefa, c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 DMARC v\u00e0 BIMI (Ch\u1ec9 b\u00e1o th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ec3 nh\u1eadn d\u1ea1ng th\u00f4ng b\u00e1o) \u0111ang tr\u1edf n\u00ean n\u1ed5i b\u1eadt. DMARC x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean DKIM v\u00e0 SPF, cung c\u1ea5p khung ch\u00ednh s\u00e1ch \u0111\u1ec3 x\u00e1c th\u1ef1c, b\u00e1o c\u00e1o v\u00e0 th\u1ef1c thi email. BIMI b\u1ed5 sung cho DKIM b\u1eb1ng c\u00e1ch cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c hi\u1ec3n th\u1ecb logo th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a h\u1ecd c\u00f9ng v\u1edbi c\u00e1c email \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, c\u1ee7ng c\u1ed1 ni\u1ec1m tin v\u00e0 s\u1ef1 c\u00f4ng nh\u1eadn.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy v\u00e0 th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n<\/h2>\n<p>C\u00e1c m\u00e1y ch\u1ee7 proxy, gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy (oneproxy.pro) cung c\u1ea5p, c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c h\u1ed7 tr\u1ee3 tri\u1ec3n khai DKIM. M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn, thay m\u1eb7t ng\u01b0\u1eddi g\u1eedi chuy\u1ec3n ti\u1ebfp l\u01b0u l\u01b0\u1ee3ng email. Khi th\u01b0 email \u0111i qua m\u00e1y ch\u1ee7 proxy, m\u00e1y ch\u1ee7 ph\u1ea3i \u0111\u1ea3m b\u1ea3o ch\u1eef k\u00fd DKIM v\u1eabn nguy\u00ean v\u1eb9n v\u00e0 kh\u00f4ng thay \u0111\u1ed5i. C\u1ea5u h\u00ecnh v\u00e0 x\u1eed l\u00fd ti\u00eau \u0111\u1ec1 DKIM \u0111\u00fang c\u00e1ch l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec t\u00ednh x\u00e1c th\u1ef1c v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a email th\u00f4ng qua m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 Th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a mi\u1ec1n v\u00e0 c\u00e1ch tri\u1ec3n khai th\u01b0 n\u00e0y:<\/p>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc6376\" target=\"_new\" rel=\"noopener nofollow\">RFC 6376<\/a>: Ch\u1eef k\u00fd th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a t\u00ean mi\u1ec1n (DKIM) \u2013 Ti\u00eau chu\u1ea9n IETF cho DKIM.<\/li>\n<li><a href=\"https:\/\/dmarc.org\/\" target=\"_new\" rel=\"noopener nofollow\">DMARC.org<\/a>: Th\u00f4ng tin v\u00e0 t\u00e0i nguy\u00ean tr\u00ean DMARC, b\u1ed5 sung cho DKIM v\u00e0 SPF \u0111\u1ec3 x\u00e1c th\u1ef1c v\u00e0 b\u00e1o c\u00e1o email.<\/li>\n<li><a href=\"https:\/\/bimigroup.org\/\" target=\"_new\" rel=\"noopener nofollow\">Nh\u00f3m c\u00f4ng t\u00e1c BIMI<\/a>: Th\u00f4ng tin v\u1ec1 Ch\u1ec9 s\u1ed1 Th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ec3 Nh\u1eadn d\u1ea1ng Th\u01b0, m\u1ed9t c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai nh\u1eb1m n\u00e2ng cao kh\u1ea3 n\u0103ng x\u00e1c th\u1ef1c email v\u00e0 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb th\u01b0\u01a1ng hi\u1ec7u.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, Th\u01b0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng kh\u00f3a mi\u1ec1n \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ee7a b\u1ea3o m\u1eadt email, cung c\u1ea5p c\u01a1 ch\u1ebf m\u1ea1nh m\u1ebd \u0111\u1ec3 x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a th\u01b0 email. Khi b\u1ed1i c\u1ea3nh email ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, DKIM, c\u00f9ng v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i kh\u00e1c, s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o v\u00e0 l\u1eeba \u0111\u1ea3o qua email, \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m li\u00ean l\u1ea1c qua email an to\u00e0n h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n cho m\u1ecdi ng\u01b0\u1eddi.<\/p>","protected":false},"featured_media":476979,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476978","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>DomainKeys Identified Mail: Securing Email Communications<\/mark>","faq_items":[{"question":"What is DomainKeys Identified Mail (DKIM)?","answer":"<p>DomainKeys Identified Mail (DKIM) is an email authentication method designed to verify the authenticity of email messages. It associates an email message with a domain through cryptographic signatures, ensuring that the sender's identity is legitimate and that the email content has not been altered during transmission.<\/p>"},{"question":"How does DKIM work?","answer":"<p>When an email is sent from a DKIM-enabled domain, the sending server adds a digital signature to the email header using a private key owned by the domain's owner. Upon receiving the email, the recipient's server can validate the signature's authenticity using the public key published in the domain's DNS records. If the signature is valid, the recipient can trust the sender's identity and the integrity of the email.<\/p>"},{"question":"What are the key features of DKIM?","answer":"<ul><li>Email Authentication: DKIM verifies the authenticity of email senders, reducing the risk of email spoofing and phishing attacks.<\/li><li>Message Integrity: Recipients can ensure that the email content has not been altered during transmission by validating the DKIM signature.<\/li><li>Non-Repudiation: Once a message is signed with a private key, the sender cannot deny having sent the message, providing non-repudiation.<\/li><\/ul>"},{"question":"Are there different types of DKIM?","answer":"<p>There are no distinct types of DKIM, but variations may exist based on factors like key length and signature algorithm. Some DKIM-specific terms include the DKIM-Signature Header, DKIM Canonicalization, and DKIM Selector.<\/p>"},{"question":"What are the advantages of using DKIM?","answer":"<ul><li>Reduced Spam: DKIM helps email servers identify legitimate senders, reducing the chance of genuine emails being marked as spam.<\/li><li>Brand Protection: DKIM prevents attackers from impersonating brands, protecting brand reputation and customers from phishing attacks.<\/li><li>Enhanced Deliverability: Proper DKIM implementation improves email deliverability rates, as authenticated emails are less likely to be blocked or marked as suspicious.<\/li><\/ul>"},{"question":"What challenges can arise with DKIM?","answer":"<ul><li>Misconfigurations: Improperly configured DKIM can lead to email delivery issues if the public key is not published correctly in DNS records.<\/li><li>Key Management: Securely handling private keys and rotating them periodically can be challenging for organizations.<\/li><li>Compatibility: Some email servers may not support DKIM, affecting proper email authentication.<\/li><\/ul>"},{"question":"How can organizations use DKIM with proxy servers like OneProxy?","answer":"<p>Proxy servers like OneProxy can support DKIM implementation by ensuring the DKIM signature remains intact and unchanged as email messages pass through the proxy server. Proper configuration and handling of DKIM headers are crucial to maintaining email authenticity and integrity through proxy servers.<\/p>"},{"question":"What future technologies complement DKIM?","answer":"<p>Technologies like DMARC (Domain-based Message Authentication, Reporting, and Conformance) and BIMI (Brand Indicators for Message Identification) are gaining prominence to enhance email authentication and brand visibility. DMARC provides a policy framework for email authentication, reporting, and enforcement, while BIMI allows organizations to display brand logos alongside authenticated emails.<\/p>"},{"question":"Where can I find more information about DKIM?","answer":"<p>For further information about DomainKeys Identified Mail and its implementation, you can refer to the following links:<\/p><ul><li><a href=\"https:\/\/tools.ietf.org\/html\/rfc6376\" target=\"_new\">RFC 6376<\/a>: DomainKeys Identified Mail (DKIM) Signatures - IETF Standard for DKIM.<\/li><li><a href=\"https:\/\/dmarc.org\/\" target=\"_new\">DMARC.org<\/a>: Information and resources on DMARC, which complements DKIM and SPF for email authentication and reporting.<\/li><li><a href=\"https:\/\/bimigroup.org\/\" target=\"_new\">BIMI Working Group<\/a>: Information on Brand Indicators for Message Identification, a future technology to enhance email authentication and brand visibility.<\/li><\/ul>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476978\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476979"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}