{"id":1005,"date":"2020-12-22T22:58:30","date_gmt":"2020-12-22T15:58:30","guid":{"rendered":"http:\/\/blog.iwayvietnam.com\/tuanta\/?p=1005"},"modified":"2020-12-24T23:04:43","modified_gmt":"2020-12-24T16:04:43","slug":"email-deliverability-part-2-chat-luong-tap-dia-chi-nhan","status":"publish","type":"post","link":"https:\/\/blog.iwayvietnam.com\/tuanta\/2020\/12\/email-deliverability-part-2-chat-luong-tap-dia-chi-nhan\/","title":{"rendered":"Email Deliverability part 2: Ch\u1ea5t l\u01b0\u1ee3ng t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn"},"content":{"rendered":"<p>Trong b\u00e0i tr\u01b0\u1edbc, ch\u00fang ta \u0111\u00e3 ph\u00e2n t\u00edch y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ea7u ti\u00ean \u0111\u1ebfn email deliverability: <strong>Ngu\u1ed3n G\u1eedi<\/strong>.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"HqjmB5CfM1\"><p><a href=\"http:\/\/blog.iwayvietnam.com\/tuanta\/2020\/12\/mot-so-luu-y-quan-trong-ve-ip-va-domain-trong-email-deliverability\/\">Email Deliverability part 1: IP v\u00e0 Domain<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Email Deliverability part 1: IP v\u00e0 Domain&#8221; &#8212; FOSS for Life\" src=\"http:\/\/blog.iwayvietnam.com\/tuanta\/2020\/12\/mot-so-luu-y-quan-trong-ve-ip-va-domain-trong-email-deliverability\/embed\/#?secret=HqjmB5CfM1\" data-secret=\"HqjmB5CfM1\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>Lo\u1ea1t b\u00e0i ti\u1ebfp theo \u0111\u00e2y, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng ti\u1ebfp theo: <strong>Ch\u1ea5t l\u01b0\u1ee3ng t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1009 size-full\" src=\"http:\/\/blog.iwayvietnam.com\/tuanta\/files\/2020\/12\/signup_form2.jpg\" alt=\"\" width=\"352\" height=\"259\" srcset=\"https:\/\/blog.iwayvietnam.com\/tuanta\/files\/2020\/12\/signup_form2.jpg 352w, https:\/\/blog.iwayvietnam.com\/tuanta\/files\/2020\/12\/signup_form2-300x221.jpg 300w\" sizes=\"(max-width: 352px) 100vw, 352px\" \/><\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n: ChooseWhat<\/em><\/p>\n<p>C\u00f3 3 lo\u1ea1i \u0111\u1ecba ch\u1ec9 \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 mailbox xem x\u00e9t: <em><strong>\u0110\u1ecba ch\u1ec9 kh\u00f4ng t\u1ed3n t\u1ea1i<\/strong><\/em> (Unknown users), <em><strong>B\u1eaby spam<\/strong><\/em> (Spam traps) v\u00e0 <em><strong>\u0110\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/strong><\/em> (Inactive users).<\/p>\n<p><strong>\u0110\u1ecba ch\u1ec9 kh\u00f4ng t\u1ed3n t\u1ea1i (Unknown users)<\/strong><br \/>\nL\u00e0 \u0111\u1ecba ch\u1ec9 ch\u01b0a t\u1eebng t\u1ed3n t\u1ea1i, ho\u1eb7c b\u1ecb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 mailbox hay ch\u00ednh ng\u01b0\u1eddi d\u00f9ng x\u00f3a kh\u1ecfi h\u1ec7 th\u1ed1ng. Khi nh\u1eadn email \u0111\u1ebfn 1 \u0111\u1ecba ch\u1ec9 kh\u00f4ng t\u1ed3n t\u1ea1i, h\u1ec7 th\u1ed1ng email nh\u1eadn s\u1ebd tr\u1ea3 v\u1ec1 m\u00e3 l\u1ed7i Hard-bounce 5xx c\u00f3 d\u1ea1ng:<br \/>\n550 &lt;subscriber@acme.com&gt; User unknown<br \/>\n550 &lt;subscriber@acme.com&gt; Mailbox does not exist<br \/>\n550 &lt;subscriber@acme.com&gt; Invalid recipient<\/p>\n<p>T\u1ef7 l\u1ec7 unknown users \/ t\u1ed5ng s\u1ed1 email trong 1 \u0111\u01a1n v\u1ecb th\u1eddi gian c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c an to\u00e0n d\u01b0\u1edbi 2%. T\u1ef7 l\u1ec7 tr\u00ean 2% b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c coi l\u00e0 d\u1ea5u hi\u1ec7u ngu\u1ed3n g\u1eedi n\u00e0y l\u00e0 spammers. T\u1ef7 l\u1ec7 tr\u00ean 10% th\u00ec h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng nh\u1eadn email \u0111\u1ec1u coi ngu\u1ed3n g\u1eedi n\u00e0y ch\u1eafc ch\u1eafn l\u00e0 Spammers.<\/p>\n<p><strong>B\u1eaby spam (Spam traps)<\/strong><br \/>\nL\u00e0 nh\u1eefng h\u1ed9p th\u01b0 \u0111\u1eb7c bi\u1ec7t, \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 d\u00e0nh ri\u00eang \u0111\u1ec3 ti\u1ebfp nh\u1eadn email v\u00e0 ph\u00e2n t\u00edch kh\u1ea3 n\u0103ng ngu\u1ed3n g\u1eedi l\u00e0 spammers hay kh\u00f4ng.<br \/>\nM\u1ed9t email r\u01a1i v\u00e0o b\u1eaby spam ngh\u0129a l\u00e0 ngu\u1ed3n g\u1eedi c\u00f3 v\u1ea5n \u0111\u1ec1: 1\/ l\u1ea5y \u0111\u1ecba ch\u1ec9 email t\u1eeb ngu\u1ed3n x\u1ea5u, ho\u1eb7c 2\/ \u0111\u1ecba ch\u1ec9 nh\u1eadn email kh\u00f4ng \u0111\u01b0\u1ee3c d\u1ecdn d\u1eb9p th\u01b0\u1eddng xuy\u00ean. K\u1ec3 t\u1eeb th\u1eddi \u0111i\u1ec3m n\u00e0y, \u0111\u1ecba ch\u1ec9 IP, t\u00ean mi\u1ec1n c\u1ee7a ngu\u1ed3n g\u1eedi ho\u1eb7c m\u1eabu n\u1ed9i dung th\u01b0 c\u00f3 th\u1ec3 b\u1ecb li\u1ec7t v\u00e0o danh s\u00e1ch ch\u1eb7n t\u1ea1m th\u1eddi, ho\u1eb7c v\u0129nh vi\u1ec5n. Lo\u1ea1i v\u00e0 tu\u1ed5i c\u1ee7a b\u1eaby spam l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 quy\u1ebft \u0111\u1ecbnh ng\u0103n ch\u1eb7n.<\/p>\n<p>C\u00f3 2 lo\u1ea1i b\u1eaby spam:<\/p>\n<ul>\n<li><em><strong>B\u1eaby spam t\u00e1i s\u1eed d\u1ee5ng (Recycled)<\/strong><\/em>: \u0111\u1ecba ch\u1ec9 t\u1eebng thu\u1ed9c v\u1ec1 m\u1ed9t ng\u01b0\u1eddi th\u1eadt, nh\u01b0ng \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh b\u1eaby spam sau khi ng\u01b0\u1eddi d\u00f9ng d\u1eebng s\u1eed d\u1ee5ng. B\u1eaby spam lo\u1ea1i n\u00e0y th\u01b0\u1eddng ch\u1ec9 ra l\u00e0 t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn email kh\u00f4ng \u0111\u01b0\u1ee3c d\u1ecdn d\u1eb9p th\u01b0\u1eddng xuy\u00ean.<\/li>\n<li><em><strong>H\u0169 m\u1eadt (Honey pot)<\/strong><\/em>: \u0111\u1ecba ch\u1ec9 \u0111\u01b0\u1ee3c l\u1eadp ra v\u1edbi m\u1ee5c \u0111\u00edch r\u00f5 r\u00e0ng t\u1eeb \u0111\u1ea7u nh\u1eb1m ch\u1eb7n b\u1eaft c\u00e1c ngu\u1ed3n g\u1eedi x\u1ea5u. Nhi\u1ec1u nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 b\u1eaby spam \u0111\u1ec3 \u0111\u1ecba ch\u1ec9 &#8220;h\u0169 m\u1eadt&#8221; l\u00ean website ho\u1eb7c c\u00e1c di\u1ec5n \u0111\u00e0n, trang m\u1ea1ng kh\u00e1c, \u1ea9n so v\u1edbi ng\u01b0\u1eddi d\u00f9ng, nh\u01b0ng l\u1ea1i d\u1ec5 d\u00e0ng \u0111\u1ecdc b\u1edfi c\u00e1c robot chuy\u00ean \u0111i thu th\u1eadp \u0111\u1ecba ch\u1ec9 email. Ngu\u1ed3n g\u1eedi t\u1edbi c\u00e1c \u0111\u1ecba ch\u1ec9 &#8220;h\u0169 m\u1eadt&#8221; n\u00e0y ngay l\u1eadp t\u1ee9c b\u1ecb \u0111\u00e1nh gi\u00e1 l\u00e0 spammer.<\/li>\n<\/ul>\n<p><strong>C\u00e1c l\u01b0u \u00fd c\u1ee5 th\u1ec3 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn:<\/strong><\/p>\n<ul>\n<li><strong><em>C\u00e1ch li ri\u00eang c\u00e1c t\u1eadp d\u1eef li\u1ec7u m\u1edbi<\/em><\/strong>: ch\u1ec9 g\u1eedi th\u01b0 ch\u00e0o h\u1ecfi, n\u1ebfu kh\u00f4ng nh\u1eadn l\u1ea1i m\u00e3 l\u1ed7i 5xx m\u1edbi \u0111\u01b0a v\u00e0o t\u1eadp \u0111\u1ecba ch\u1ec9 ch\u00ednh th\u1ee9c.<\/li>\n<li><strong><em>Cung c\u1ea5p l\u1ef1a ch\u1ecdn c\u1eadp nh\u1eadt \u0111\u1ecba ch\u1ec9 ti\u1ec7n l\u1ee3i<\/em><\/strong>: m\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng th\u1ec9nh tho\u1ea3ng thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 email v\u00e0 mong mu\u1ed1n c\u1eadp nh\u1eadt th\u00f4ng tin li\u00ean h\u1ec7 n\u1ebfu \u0111\u01b0\u1ee3c cung c\u1ea5p c\u00f4ng c\u1ee5 ti\u1ec7n l\u1ee3i.<\/li>\n<li><em><strong>X\u00e1c nh\u1eadn khi \u0111\u0103ng k\u00fd<\/strong><\/em>: khi ng\u01b0\u1eddi d\u00f9ng \u0111\u0103ng k\u00fd, c\u1ea7n g\u1eedi th\u01b0 x\u00e1c nh\u1eadn, th\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n l\u00e0 click v\u00e0o 1 \u0111\u01b0\u1eddng d\u1eabn t\u1ea1o s\u1eb5n.<\/li>\n<li><em><strong>C\u1ea9n th\u1eadn l\u1ef1a ch\u1ecdn t\u1eadp \u0111\u1ecba ch\u1ec9<\/strong><\/em>: th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra t\u1eadp \u0111\u1ecba ch\u1ec9 \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi b\u00ean th\u1ee9 3, \u0111\u1ec3 ra c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u1eed d\u1ee5ng hay lo\u1ea1i b\u1ecf m\u1ed9t nh\u00f3m ho\u1eb7c c\u1ea3 t\u1eadp \u0111\u1ecba ch\u1ec9.<\/li>\n<li><em><strong>G\u1eedi email th\u01b0\u1eddng xuy\u00ean<\/strong><\/em>: v\u1ec1 nguy\u00ean t\u1eafc, c\u00e0ng \u00edt g\u1eedi email, nguy c\u01a1 email b\u1ecb tr\u1ea3 l\u1ea1i (bounce), hay th\u1eadm ch\u00ed b\u1ecb g\u1eedi v\u00e0o b\u1eaby spam (d\u1ea1ng &#8220;t\u00e1i s\u1eed d\u1ee5ng&#8221;) c\u00e0ng cao. D\u0129 nhi\u00ean, t\u1ea7n su\u1ea5t \u1edf \u0111\u00e2y ph\u1ea3i hi\u1ec3u l\u00e0 t\u1ea7n su\u1ea5t g\u1eedi th\u1ef1c t\u1ebf h\u00e0ng ng\u00e0y, h\u00e0ng tu\u1ea7n&#8230;, kh\u00f4ng ph\u1ea3i ki\u1ec3u b\u1eafn email h\u00e0ng lo\u1ea1t, l\u1eb7p \u0111i l\u1eb7p l\u1ea1i \u0111\u1ebfn 1 t\u1eadp \u0111\u1ecba ch\u1ec9.<\/li>\n<li><strong><em>Theo d\u00f5i h\u00e0nh vi c\u1ee7a ng\u01b0\u1eddi nh\u1eadn<\/em><\/strong>: nh\u01b0 m\u1ed9t lu\u1eadt b\u1ea5t th\u00e0nh v\u0103n, \u0111\u1ecba ch\u1ec9 nh\u1eadn kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c kh\u00f4ng c\u00f3 ph\u1ea3n h\u1ed3i g\u00ec h\u01a1n 1 n\u0103m c\u1ea7n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf kh\u1ecfi t\u1eadp \u0111\u1ecba ch\u1ec9. Qu\u00e3ng th\u1eddi gian c\u00f3 th\u1ec3 l\u00e0 6 th\u00e1ng ho\u1eb7c 3 th\u00e1ng n\u1ebfu t\u1ea7n su\u1ea5t g\u1eedi kh\u00e1 th\u01b0\u1eddng xuy\u00ean.<\/li>\n<li><strong><em>D\u1ecdn d\u1eb9p t\u1eadp \u0111\u1ecba ch\u1ec9<\/em><\/strong>: th\u01b0\u1eddng xuy\u00ean d\u1ecdn d\u1eb9p c\u00e1c \u0111\u1ecba ch\u1ec9 d\u1ea1ng ch\u1ee9c danh (role) nh\u01b0 sales@domain.com, \u0111\u1ecba ch\u1ec9 d\u1ea1ng th\u1eed nghi\u1ec7m nh\u01b0 test@domain.com ho\u1eb7c \u0111\u1ecba ch\u1ec9 l\u1ed7i nh\u01b0 jane@gmal.com.<\/li>\n<\/ul>\n<p><strong>\u0110\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng (Inactive users)<\/strong><\/p>\n<p>\u0110\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea1i di\u1ec7n chi nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng m\u1edf, click, ho\u1eb7c th\u1ef1c hi\u1ec7n b\u1ea5t c\u1ee9 h\u00e0nh \u0111\u1ed9ng g\u00ec tr\u00ean email nh\u1eadn \u0111\u01b0\u1ee3c trong m\u1ed9t kho\u1ea3ng th\u1edbi gian x\u00e1c \u0111\u1ecbnh. Nhi\u1ec1u t\u1eadp \u0111\u1ecba ch\u1ec9 ch\u1ee9a \u0111\u1ebfn 80% l\u00e0 \u0111\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>\u0110\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng t\u1ed3n t\u1ea1i b\u1edfi nhi\u1ec1u nguy\u00ean nh\u00e2n. Ch\u00fang kh\u00f4ng t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng T\u1eadp \u0111\u1ecba ch\u1ec9 v\u00e0 Kh\u1ea3 n\u0103ng ngu\u1ed3n g\u1eedi b\u1ecb \u0111\u00e1nh gi\u00e1 spam nh\u01b0 \u0110\u1ecba ch\u1ec9 kh\u00f4ng t\u1ed3n t\u1ea1i (Unknown users) ho\u1eb7c B\u1eaby spam (Spam traps), nh\u01b0ng ch\u00fang l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 ph\u1ea3n h\u1ed3i c\u1ee7a c\u1ea3 chi\u1ebfn d\u1ecbch\/ch\u01b0\u01a1ng tr\u00ecnh, v\u00e0 gi\u00e1n ti\u1ebfp \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn \u0111i\u1ec3m t\u00edn nhi\u1ec7m n\u00f3i chung. V\u00ec v\u1eady, c\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 ki\u1ec3m so\u00e1t c\u00e1c \u0111\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng trong tr\u00ean ph\u1ea7n m\u1ec1m g\u1eedi th\u01b0 qua t\u1eebng chi\u1ebfn d\u1ecbch\/ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n<p><em><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd c\u1ee5 th\u1ec3:<\/strong><\/em><\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng c\u1ee7a ph\u1ea7n m\u1ec1m g\u1eedi th\u01b0 theo d\u00f5i d\u1eef li\u1ec7u v\u1ec1 ph\u1ea3n h\u1ed3i c\u1ee7a ng\u01b0\u1eddi d\u00f9ng qua t\u1eebng chi\u1ebfn d\u1ecbch\/ch\u01b0\u01a1ng tr\u00ecnh.<\/li>\n<li>Theo d\u00f5i, th\u1ed1ng k\u00ea s\u1ed1 l\u01b0\u1ee3ng m\u1edf, click v\u00e0 b\u1ecb tr\u1ea3 l\u1ea1i (bounce). \u0110\u1eb7c bi\u1ec7t l\u01b0u \u00fd khi t\u1ef7 l\u1ec7 m\u1edf, click gi\u1ea3m, ho\u1eb7c khi t\u1ef7 l\u1ec7 b\u1ecb tr\u1ea3 l\u1ea1i t\u0103ng b\u1ea5t th\u01b0\u1eddng. D\u00f9ng ch\u00ednh d\u1eef li\u1ec7u n\u00e0y l\u00e0m c\u00e1c m\u1ed1c x\u00e1c \u0111\u1ecbnh \u0110\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng hay Ho\u1ea1t \u0111\u1ed9ng, sau \u0111\u00f3 ch\u1ee7 \u0111\u1ed9ng thi\u1ebft \u0111\u1eb7t gi\u1ea3m t\u1ea7n su\u1ea5t g\u1eedi th\u01b0 t\u1edbi c\u00e1c \u0111\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li>Ki\u1ec3m so\u00e1t ngu\u1ed3n cung c\u1ea5p c\u00e1c \u0111\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng (t\u1eeb website, t\u1eeb \u0111\u1ed1i t\u00e1c, t\u1eeb gi\u1edbi thi\u1ec7u&#8230;) x\u00e1c \u0111\u1ecbnh m\u1eabu s\u1ed1 chung ph\u00e1t sinh c\u00e1c \u0111\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1eebng ngu\u1ed3n \u0111\u1ec3 ph\u00f2ng tr\u00e1nh, gi\u1ea3m b\u1edbt t\u1eadp \u0111\u1ecba ch\u1ec9 lo\u1ea1i n\u00e0y.<\/li>\n<\/ul>\n<p>Th\u1ef1c h\u00e0nh t\u1ed1t c\u00e1c l\u01b0u \u00fd trong b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1t c\u1ea3 3 lo\u1ea1i \u0111\u1ecba ch\u1ec9 \u0111\u1eb7c bi\u1ec7t: <em><strong>\u0110\u1ecba ch\u1ec9 kh\u00f4ng t\u1ed3n t\u1ea1i<\/strong><\/em> (Unknown users), <em><strong>B\u1eaby spam<\/strong><\/em> (Spam traps) v\u00e0 <em><strong>\u0110\u1ecba ch\u1ec9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/strong><\/em> (Inactive users) s\u1ebd gi\u00fap n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn, qua \u0111\u00f3 ki\u1ec3m so\u00e1t t\u1ed1t nh\u1ea5t \u0111i\u1ec3m t\u00edn nhi\u1ec7m cho ngu\u1ed3n g\u1eedi (sender reputation), \u0111\u1ea3m b\u1ea3o email deliverability lu\u00f4n \u1edf m\u1ee9c cao nh\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong b\u00e0i tr\u01b0\u1edbc, ch\u00fang ta \u0111\u00e3 ph\u00e2n t\u00edch y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ea7u ti\u00ean \u0111\u1ebfn email deliverability: Ngu\u1ed3n G\u1eedi. Email Deliverability part 1: IP v\u00e0 Domain Lo\u1ea1t b\u00e0i ti\u1ebfp theo \u0111\u00e2y, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng ti\u1ebfp theo: Ch\u1ea5t l\u01b0\u1ee3ng t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn. Ngu\u1ed3n: ChooseWhat C\u00f3 3 lo\u1ea1i \u0111\u1ecba<a class=\"more-link\" href=\"https:\/\/blog.iwayvietnam.com\/tuanta\/2020\/12\/email-deliverability-part-2-chat-luong-tap-dia-chi-nhan\/\">Continue reading <span class=\"screen-reader-text\">&#8220;Email Deliverability part 2: Ch\u1ea5t l\u01b0\u1ee3ng t\u1eadp \u0111\u1ecba ch\u1ec9 nh\u1eadn&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4046,34,17],"tags":[],"class_list":["post-1005","post","type-post","status-publish","format-standard","hentry","category-email-deliverability","category-weekly-tips","category-zimbra","entry"],"_links":{"self":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts\/1005"}],"collection":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/comments?post=1005"}],"version-history":[{"count":6,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts\/1005\/revisions"}],"predecessor-version":[{"id":1012,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts\/1005\/revisions\/1012"}],"wp:attachment":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/media?parent=1005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/categories?post=1005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/tags?post=1005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}