{"id":36943,"date":"2020-05-12T02:13:52","date_gmt":"2020-05-12T01:13:52","guid":{"rendered":"https:\/\/kinsta.com\/?p=63364"},"modified":"2023-08-24T13:39:16","modified_gmt":"2023-08-24T12:39:16","slug":"smtp-port","status":"publish","type":"post","link":"https:\/\/kinsta.com\/dk\/blog\/smtp-port\/","title":{"rendered":"S\u00e5dan v\u00e6lges den rigtige SMTP-port (Port 25, 587, 465 eller 2525)"},"content":{"rendered":"<p>K\u00e6mper du for at finde den rigtige SMTP-port, du kan bruge? Been there, done that!<\/p>\n<p>Hvis du bruger en e-mail-klient som Apple Mail eller Outlook til at sende e-mails, bruger den e-mail-klient sandsynligvis ogs\u00e5 SMTP til at uploade dine udg\u00e5ende e-mails til din mailserver (<em>selvom disse klienter typisk bruger andre protokoller som IMAP eller POP3 til at downloade indg\u00e5ende e-mails til appen<\/em>).<\/p>\n<p>Hvis <a href=\"https:\/\/kinsta.com\/blog\/wordpress-not-sending-email\/\">du k\u00e6mper med e-mail-leverbarhed p\u00e5 WordPress<\/a>, er en af \u200b\u200bde bedste m\u00e5der til at l\u00f8se problemet at bruge <a href=\"https:\/\/kinsta.com\/dk\/blog\/gratis-smtp-server\/\">en SMTP sending service<\/a> som <a href=\"https:\/\/kinsta.com\/dk\/blog\/sendgrid-wordpress\/\">SendGrid<\/a>, <a href=\"https:\/\/kinsta.com\/blog\/mailgun-wordpress\/\">Mailgun<\/a> eller <a href=\"https:\/\/kinsta.com\/blog\/google-workspace\/\">Google Workspace<\/a>.<\/p>\n<p>Men hvis du pr\u00f8ver at konfigurere SMTP med din e-mail-klient eller WordPress-websted, vil du sandsynligvis st\u00f8de p\u00e5 sp\u00f8rgsm\u00e5let om, hvilken SMTP-port du skal bruge.<\/p>\n<p>For at hj\u00e6lpe dig med at v\u00e6lge den rigtige SMTP-port til dine behov, vil vi grave ned i alt, hvad SMTP-port er relateret til, i dette indl\u00e6g.<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<p><strong>Se vores <a href=\"https:\/\/www.youtube.com\/watch?v=5lkLFGfb0G8\">videoguide om, hvordan du v\u00e6lger det rigtige SMTP-portnummer<\/a>:<\/strong><\/p>\n<p class=\"p1\"><kinsta-video src=\"https:\/\/www.youtube.com\/watch?v=5lkLFGfb0G8\"><\/kinsta-video><\/p>\n\n<div  class=\"featured-snippet\" id=\"featuredSnippet\">\n    <div class=\"featured-snippet__content\">\n        <h2>Hvad er en SMTP-port?<\/h2>\n        <div><p>En SMTP-port er et kommunikations endpoint der h\u00e5ndterer informationsoverf\u00f8rsler fra en server til en anden. Mens SMTP (Simple Mail Transfer Protocol) garanterer, at de fleste e-mails sendes p\u00e5 nettet, s\u00f8rger en port for, at de rigtige e-mail-data bliver sendt til det rigtige sted.<\/p>\n<\/div>\n    <\/div>\n    <div class=\"featured-snippet__footer\">\n        <div class=\"arrow-down\"><\/div>\n        <div class=\"featured-snippet__footer--content row nocol middle-xs between-xs reverse\">\n            <div style=\"margin-left: auto; position: relative; top: -1px\" class=\"row nocol middle-xs\">\n                <div class=\"color--mediumGray\" style=\"font-size: 14px; vertical-align: middle;\">\n                    <svg  class=\"icon icon--logo display--block\" aria-hidden=\"true\" focusable=\"false\"><use xlink:href=\"https:\/\/kinsta.com\/dk\/wp-content\/themes\/kinsta\/dist\/sprite.svg?v=e8af2143e3b8bceb5561b327e81ec085#logo\" \/><\/svg>                <\/div>\n                <div class=\"text--bold color--mediumGray\" style=\"padding-left: 3px;\">Support<\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<p>Lad os forst\u00e5 denne proces mere detaljeret.<\/p>\n<p>Som vi sagde, er SMTP standardprotokollen til e-mail-transmission p\u00e5 nettet. Det er hvad mailservere bruger til at sende og modtage e-mails p\u00e5 Internettet.<\/p>\n<p>N\u00e5r du f.eks. sender en e-mail, har din e-mail-klient brug for en m\u00e5de at uploade e-mailen til den udg\u00e5ende postserver. Derefter har den udg\u00e5ende mailserver brug for en m\u00e5de at overf\u00f8re din e-mail til modtagerens indg\u00e5ende mailserver.<\/p>\n<p>E-mail-servere er meget som websteds-servere i, at selvom der muligvis er et brugervenligt frontvendt <a href=\"https:\/\/kinsta.com\/dk\/blog\/hvor-meget-koster-et-domaenenavn\/\">dom\u00e6nenavn<\/a>, sker den faktiske kommunikation via IP-adresser, ligesom 222.501.285.45 (for mere information om, hvordan dette sker, <a href=\"https:\/\/kinsta.com\/dk\/blog\/hvad-er-dns\/\">se vores introduktion til Domain Name System eller DNS)<\/a>.<\/p>\n<p>En &#8220;port&#8221; er en anden m\u00e5de at hj\u00e6lpe computere (<em>som to mailserver<\/em>) med at kommunikere med hinanden:<\/p>\n<ul>\n<li>En IP-adresse identificerer en computer.<\/li>\n<li>En port identificerer en bestemt applikation \/ service, der k\u00f8rer p\u00e5 denne computer, ligesom SMTP.<\/li>\n<\/ul>\n<p>Her er en analogi til at g\u00f8re det lidt mere menneskeligt venligt:<\/p>\n<p>En IP-adresse er den fysiske gade-adresse for et forretningskompleks. En port er nummeret p\u00e5 en bestemt virksomhed i det forretningskompleks.<\/p>\n<p>Hvis du vil levere noget til den forretning, kan du ikke bare adressere det til forretningskomplekset, du har ogs\u00e5 brug for en m\u00e5de at sikre dig, at det kommer til det rigtige sted inde i forretningskomplekset.<\/p>\n<p><a href=\"https:\/\/www.iana.org\/\">IANA<\/a>, den organisation, der er ansvarlig for allokering af IP-adresser og andre opgaver, er ogs\u00e5 ansvarlig for at registrere portnumre til f\u00e6lles internettjenester, der inkluderer SMTP.<\/p>\n<h2 id=\"why\">Hvorfor din SMTP-port betydning?<\/h2>\n<p>Hvis du vil oprette forbindelse til en SMTP-server(som <a href=\"https:\/\/kinsta.com\/blog\/gmail-smtp-server\/\">Gmail SMTP-serveren<\/a>), skal du indtaste b\u00e5de dens IP-adresse og dens portnummer.<\/p>\n<p>Der er dog flere almindelige SMTP-porte (mere om dette n\u00e6ste), og ikke alle fungerer i alle situationer.<\/p>\n<p>For eksempel er port 25, standard SMTP-port til flytning af meddelelser mellem mailserver, ofte blokeret af internetudbydere og skyudbydere (inklusive Google Cloud Platform, hvilket er, hvad Kinsta bruger).<\/p>\n<p>Som s\u00e5dan, hvis du fors\u00f8ger at oprette forbindelse til en SMTP-server via port 25, vil du ofte st\u00f8de p\u00e5 problemer, fordi s\u00e5 mange tjenester blokerer port 25.<\/p>\n<h3>Forskellige porte til forskellige form\u00e5l<\/h3>\n<p>Ud over implikationer ovenfor har forskellige SMTP-porte ogs\u00e5 forskellige form\u00e5l.<\/p>\n<p>Der er to brede faser i SMTP-transmission:<\/p>\n<ul>\n<li><strong>Submission<\/strong> &#8211; indsendelse af en e-mail-besked til en udg\u00e5ende postserver. N\u00e5r du f.eks. sender en e-mail i Apple Mail, skal denne meddelelse sendes til den udg\u00e5ende postserver.<\/li>\n<li><strong>Relay<\/strong> &#8211; processen med at videresende meddelelsen mellem to servere. S\u00e5 efter at en e-mail er &#8220;sendt&#8221; til den udg\u00e5ende postserver, &#8220;videresender den udg\u00e5ende postserver&#8221; denne meddelelse til modtagerens mailserver.<\/li>\n<\/ul>\n<p>Hvis du opretter din e-mail-klient eller WordPress-sted, er du mest optaget af &#8220;indsendelse&#8221; -delen af \u200b\u200bprocessen.<\/p>\n<p>Mens &#8220;relay&#8221; bestemt er en vigtig del af SMTP, beh\u00f8ver de fleste ikke at konfigurere deres egen e-mail-server.<\/p>\n<h2 id=\"ports\">Hvilken port bruger SMTP?<\/h2>\n<p>P\u00e5 det moderne web er der ikke en eneste SMTP-port. I stedet er der fire almindelige SMTP-porte:<\/p>\n<ul>\n<li>25<\/li>\n<li>587<\/li>\n<li>465<\/li>\n<li>2525<\/li>\n<\/ul>\n<p>Lad os gennemg\u00e5 dem.<\/p>\n<h3>Hvad bruges Port 25 til?<\/h3>\n<p>Port 25 blev etableret helt tilbage i 1982, hvilket g\u00f8r det til den \u00e6ldste SMTP-port.<\/p>\n<p>Port 25 er stadig kendt som standard SMTP-port og bruges mest til <strong>SMTP-relay<\/strong>.<\/p>\n<p>AD<\/p>\n<p>Men hvis du opretter dit WordPress-sted eller e-mail-klient med SMTP, vil du normalt <strong>ikke<\/strong> bruge port 25, fordi de fleste private internetudbydere og cloud-hostingudbydere blokerer port 25.<\/p>\n<p>Hvorfor? Fordi port 25 ofte misbruges til at sende spam fra kompromitterede computere.<\/p>\n<p>Husk: der er en forskel mellem SMTP-indsendelse og rel\u00e6. S\u00e5 selvom SMTP-port 25 er fantastisk til SMTP-relay, er det ikke en god mulighed for SMTP-indsendelse.<\/p>\n<h3>Hvad bruges Port 587 til?<\/h3>\n<p>Port 587 er standardporten til SMTP-indsendelse p\u00e5 det moderne web. Mens du kan bruge andre porte til indsendelse (mere om dem n\u00e6ste), skal du altid starte med port 587 som standard og kun bruge en anden port, hvis omst\u00e6ndighederne tilsiger det (som din host, der blokerer port 587 af en eller anden grund).<\/p>\n<p>Port 587 underst\u00f8tter ogs\u00e5 <a href=\"https:\/\/kinsta.com\/dk\/blog\/tls-vs-ssl\/\">TLS<\/a>, hvilket betyder, at du sikkert kan indsende mail.<\/p>\n<h3>Hvad bruges Port 465 til?<\/h3>\n<p>Port 465 blev oprindeligt registreret til SMTPS (SMTP over SSL). Efter en kort stint i denne funktion blev port 465 overf\u00f8rt til en anden anvendelse og udskrevet.<\/p>\n<p>P\u00e5 trods af denne kendsgerning underst\u00f8tter mange internetudbydere og cloud-hostingudbydere stadig port 465 til SMTP-indsendelse.<\/p>\n<h3>Hvad bruges Port 2525 til?<\/h3>\n<p>Port 2525 er ikke en officiel SMTP-port (som anerkendt af IETF eller IANA). Imidlertid bruges den stadig popul\u00e6rt som et alternativ til port 587 til SMTP-indsendelse, og de fleste internetudbydere og cloud-hosting-udbydere underst\u00f8tter port 2525 til SMTP.<\/p>\n<p>Hvis port 587 er blokeret, er port 2525 et godt alternativ.<\/p>\n<h2 id=\"which\">Hvilken SMTP-port skal du bruge?<\/h2>\n<p>Vi ber\u00f8rte dette ovenfor, men lad os sammenfatte, hvordan vi v\u00e6lger den rigtige SMTP-port, fordi det er vigtigt at tage den rigtige beslutning.<\/p>\n<p>Hvis du konfigurerer dit WordPress-sted eller din e-mail-klient til at sende e-mails via SMTP (indsendelse), vil du n\u00e6sten altid bruge <strong>port 587<\/strong>. Igen er dette standard SMTP-port til indsendelse, og det underst\u00f8tter sikker transmission via TLS.<\/p>\n<p>Hvis port 587 af en eller anden grund er blokeret, er <strong>port 2525<\/strong> et almindeligt alternativ. Igen er dette ikke en officielt anerkendt SMTP-port, men den bruges ofte og underst\u00f8ttes af de fleste udbydere.<\/p>\n<p>Mens mange udbydere stadig underst\u00f8tter <strong>port 465<\/strong> til SMTP, er det ikke l\u00e6ngere en accepteret standard, og du skal altid pr\u00f8ve at bruge porte 587 og 2525, f\u00f8r du bruger port 465.<\/p>\n<p>Endelig, mens <strong>port 25<\/strong> ofte bruges til SMTP-relay, skal du ikke bruge det, n\u00e5r du opretter en e-mail klient eller WordPress-websted, fordi de fleste internetudbydere og cloud-hostingudbydere blokerer port 25.<\/p>\n<h3>Hvilke SMTP-porte kan du bruge p\u00e5 Kinsta?<\/h3>\n<p>Hos Kinsta kan du bruge porte:<\/p>\n<ul>\n<li>587<\/li>\n<li>465<\/li>\n<li>2525<\/li>\n<\/ul>\n<p>Du kan ikke bruge port 25, fordi Kinsta bruger Google Cloud Platform-infrastruktur og <a href=\"https:\/\/cloud.google.com\/compute\/docs\/tutorials\/sending-mail\/\">Google Cloud Platform blokerer port 25<\/a>.<\/p>\n\n<h2>Resum\u00e9<\/h2>\n<p>SMTP spiller en vigtig rolle i flytningen af \u200b\u200be-mails rundt p\u00e5 Internettet.<\/p>\n<p>For at forbedre leverbarheden af \u200b\u200bdit WordPress-websteds <a href=\"https:\/\/kinsta.com\/docs\/wordpress-hosting\/mykinsta-tools\/email\/\">transaktions-e-mails<\/a>, kan du konfigurere dit WordPress-sted til at sende e-mails via SMTP. Hvis du bruger en e-mail-klient som Apple Mail eller <a href=\"https:\/\/kinsta.com\/blog\/outlook-smtp-settings\/\">Outlook<\/a>, bruger din e-mail-klient desuden SMTP til at indsende udg\u00e5ende e-mails til mailserveren.<\/p>\n<p>For at forbinde dit WordPress-sted eller e-mail-klient til SMTP-serveren, skal du indtaste en bestemt SMTP-port.<\/p>\n<p>Der er fire almindelige SMTP-porte:<\/p>\n<ul>\n<li>25<\/li>\n<li>587<\/li>\n<li>465<\/li>\n<li>2525<\/li>\n<\/ul>\n<p>Port 25 bruges ofte til SMTP-rel\u00e6, men du b\u00f8r ikke bruge den til SMTP-indsendelse, fordi de fleste udbydere blokerer det.<\/p>\n<p>Hvis du vil konfigurere dit WordPress-sted eller e-mail-klient til at bruge SMTP, skal du starte med port 587 som dit f\u00f8rste valg, da det er standardporten til SMTP-indsendelse.<\/p>\n<p>Og hvis port 587 ikke fungerer, kan du pr\u00f8ve port 2525. Selvom det ikke er en officielt anerkendt SMTP-port, underst\u00f8ttes den bredt, og den underst\u00f8tter TLS til sikker transmission.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>K\u00e6mper du for at finde den rigtige SMTP-port, du kan bruge? Been there, done that! Hvis du bruger en e-mail-klient som Apple Mail eller Outlook til &#8230;<\/p>\n","protected":false},"author":103,"featured_media":36945,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[69,37],"topic":[694,735],"class_list":["post-36943","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-emailmarketing","tag-smtp","topic-e-mail-marketing-tips","topic-smtp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u00e5dan v\u00e6lges den rigtige SMTP-port (Port 25, 587, 465 eller 2525)<\/title>\n<meta name=\"description\" content=\"Pr\u00f8ver du at v\u00e6lge den rigtige SMTP-port? Denne vejledning fort\u00e6ller dig, hvad en SMTP-port er, hvilken der skal bruges, og forskellen mellem 25, 587, 465 eller 2525 porte.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kinsta.com\/dk\/blog\/smtp-port\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00e5dan v\u00e6lges den rigtige SMTP-port (Port 25, 587, 465 eller 2525)\" \/>\n<meta property=\"og:description\" content=\"Pr\u00f8ver du at v\u00e6lge den rigtige SMTP-port? 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