{"id":51,"date":"2015-07-01T10:59:37","date_gmt":"2015-07-01T10:59:37","guid":{"rendered":"http:\/\/www.smtp-server.net\/?p=51"},"modified":"2015-04-29T19:40:40","modified_gmt":"2015-04-29T19:40:40","slug":"otevrene-smtp-rele-jak-rucne-otestovat-smtp-vas-e-mailovy-server","status":"publish","type":"post","link":"https:\/\/www.smtp-server.net\/cs\/otevrene-smtp-rele-jak-rucne-otestovat-smtp-vas-e-mailovy-server\/","title":{"rendered":"Open Relay SMTP - Jak ru\u010dn\u011b otestovat e-mailov\u00fd server SMTP"},"content":{"rendered":"<div style=\"float:left\"><iframe loading=\"lazy\" title=\"Neomezen\u00fd SMTP relay server (Providesmtp)\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/VdDuye8igck?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>Internetov\u00e9 slu\u017eby se v ka\u017edodenn\u00edm \u017eivot\u011b lid\u00ed staly stejn\u011b nepostradateln\u00fdmi jako voda a elekt\u0159ina. Kdy\u017e se po\u010d\u00edta\u010de poprv\u00e9 objevily, nebylo s nimi zrovna snadn\u00e9 zach\u00e1zet. Zv\u011bdavost b\u011b\u017en\u00fdch lid\u00ed, kte\u0159\u00ed se cht\u011bli dozv\u011bd\u011bt v\u00edce o jejich technick\u00e9m fungov\u00e1n\u00ed, je v\u0161ak vedla k tomu, \u017ee se nau\u010dili tato za\u0159\u00edzen\u00ed pohodln\u011b pou\u017e\u00edvat. D\u0159\u00edve se tyto stroje pou\u017e\u00edvaly k prov\u00e1d\u011bn\u00ed slo\u017eit\u00fdch v\u00fdpo\u010dt\u016f, ale s postupn\u00fdm rozvojem v oblasti technologie se staly nejlep\u0161\u00ed platformou umo\u017e\u0148uj\u00edc\u00ed lidem vz\u00e1jemnou komunikaci i p\u0159es obrovsk\u00e9 vzd\u00e1lenosti mezi m\u00edsty, kde se nach\u00e1zej\u00ed. D\u00edky vzniku e-mailov\u00e9ho serveru SMTP se proces komunikace stal tak pohodln\u00fdm a efektivn\u00edm. Pokud i vy tou\u017e\u00edte po okam\u017eit\u00e9 komunikaci, vyu\u017eit\u00ed slu\u017eby SMTP by pro v\u00e1s bylo opravdu skv\u011bl\u00fdm \u0159e\u0161en\u00edm.<\/p>\n<p>Pro b\u011b\u017en\u00e9ho u\u017eivatele, kter\u00fd k pos\u00edl\u00e1n\u00ed e-mail\u016f vyu\u017e\u00edv\u00e1 protokol SMTP (Simple Mail Transfer Protocol), sta\u010d\u00ed v\u011bd\u011bt, \u017ee tato slu\u017eba umo\u017e\u0148uje odes\u00edlat a p\u0159ij\u00edmat elektronickou po\u0161tu. N\u011bkte\u0159\u00ed lid\u00e9 v\u0161ak maj\u00ed velk\u00fd z\u00e1jem dozv\u011bd\u011bt se, jak\u00e9 kroky server prov\u00e1d\u00ed, aby zajistil \u00fasp\u011b\u0161n\u00e9 doru\u010den\u00ed e-mailu. Abychom uspokojili jejich touhu po pozn\u00e1n\u00ed r\u016fzn\u00fdch aspekt\u016f e-mailov\u00e9ho serveru SMTP a z\u00e1rove\u0148 pomohli spr\u00e1vc\u016fm spr\u00e1vn\u011b spravovat fungov\u00e1n\u00ed serveru, uv\u00e1d\u00edme v tomto \u010dl\u00e1nku postup, jak ru\u010dn\u011b zkontrolovat a otestovat v\u00e1\u0161 server.<\/p>\n<p>P\u0159esn\u011bji \u0159e\u010deno, SMTP relace je jednodu\u0161e pova\u017eov\u00e1na za telnet p\u0159es TCP port 25 nam\u00edsto portu 22. Na z\u00e1klad\u011b tohoto faktu jsou n\u00ed\u017ee uvedeny \u0161est krok\u016f, kter\u00e9 je t\u0159eba dodr\u017eet pro spr\u00e1vn\u00e9 otestov\u00e1n\u00ed SMTP e-mailov\u00e9ho serveru:<\/p>\n<p>P\u0159ipojen\u00ed: Chcete-li se p\u0159ipojit, m\u016f\u017eete v dialogov\u00e9m okn\u011b pro spu\u0161t\u011bn\u00ed pou\u017e\u00edt program Telnet, p\u0159i\u010dem\u017e je nutn\u00e9 zadat SMTP port. M\u016f\u017eete jej zadat takto: telnet mailserver.com 25.<\/p>\n<p>Handshake: Zde je t\u0159eba zadat adresu hostitele. V tomto p\u0159\u00edpad\u011b m\u016f\u017eete zadat jak\u00e9koli relevantn\u00ed \u010di irelevantn\u00ed \u00fadaje, av\u0161ak pokud m\u00e1 SMTP server, ke kter\u00e9mu se pokou\u0161\u00edte p\u0159ipojit, funkci filtrov\u00e1n\u00ed spamu, je pravd\u011bpodobn\u00e9, \u017ee neplatn\u00e9 \u00fadaje odm\u00edtne.<\/p>\n<p>Identifikace odes\u00edlatele: P\u0159i filtrov\u00e1n\u00ed spamu bude SMTP server p\u0159\u00edjemce jist\u011b vy\u017eadovat, aby adresa, kterou jste zadali do textov\u00e9ho pole \u201eFROM\u201c b\u011bhem nav\u00e1z\u00e1n\u00ed spojen\u00ed, odpov\u00eddala stejn\u00e9 IP adrese jako dom\u00e9na uveden\u00e1 v r\u00e1mci v\u00fd\u0161e zm\u00edn\u011bn\u00e9ho kroku nav\u00e1z\u00e1n\u00ed spojen\u00ed.<\/p>\n<p>Identifikace p\u0159\u00edjemce: Je t\u0159eba m\u00edt na pam\u011bti jednu v\u011bc, a to, \u017ee je nutn\u00e9 zah\u00e1jit relaci se serverem uveden\u00fdm v t\u011bchto kroc\u00edch. Pokud nastav\u00edte zah\u00e1jen\u00ed relace se serverem A a ode\u0161lete zpr\u00e1vu na adresu B, bude tato zpr\u00e1va s jistotou odm\u00edtnuta. Existuj\u00ed v\u0161ak n\u011bkter\u00e9 alternativy e-mailov\u00fdch server\u016f SMTP, kter\u00e9 toto umo\u017e\u0148uj\u00ed. Tyto servery se ozna\u010duj\u00ed jako Open Mail Relays a jsou obvykle za\u0159azeny na \u010dernou listinu.<\/p>\n<p>Zad\u00e1n\u00ed t\u011bla zpr\u00e1vy: V tomto kroku m\u016f\u017eete zadat relevantn\u00ed kl\u00ed\u010dov\u00e1 slova a data spolu s dal\u0161\u00edmi textov\u00fdmi zpr\u00e1vami a pot\u00e9 stisknout kl\u00e1vesu Enter podle pokyn\u016f poskytnut\u00fdch e-mailov\u00fdm serverem SMTP. Form\u00e1t textov\u00e9 zpr\u00e1vy vypad\u00e1 p\u0159ibli\u017en\u011b takto: DATA, n\u00e1sleduje p\u0159edm\u011bt: pot\u00e9 \u201es pozdravem\u201c a v dal\u0161\u00edm \u0159\u00e1dku jm\u00e9no u\u017eivatele.<\/p>\n<p>Ukon\u010den\u00ed relace: Zad\u00e1n\u00edm p\u0159\u00edkazu QUIT ukon\u010d\u00edte relaci slu\u017eby SMTP.<\/p>","protected":false},"excerpt":{"rendered":"<p>Internet services have become as essential as water and electricity in the daily lives of the people. When computers first came into existence, they were not very easy to handle. But the curiosity of the commoners to know about their technicality has led them to use these devices conveniently. Earlier, these machines were used for <a href=\"https:\/\/www.smtp-server.net\/cs\/otevrene-smtp-rele-jak-rucne-otestovat-smtp-vas-e-mailovy-server\/\" rel=\"nofollow\"><span class=\"sr-only\">Read more about Open Relay SMTP &#8211; How To Test Your Email Server SMTP Manually<\/span>[&hellip;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-51","post","type-post","status-publish","format-standard","hentry","category-smtp-servers"],"_links":{"self":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts\/51","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/comments?post=51"}],"version-history":[{"count":1,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts\/51\/revisions"}],"predecessor-version":[{"id":52,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts\/51\/revisions\/52"}],"wp:attachment":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/media?parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/categories?post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/tags?post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}