{"id":13402,"date":"2014-04-15T14:02:22","date_gmt":"2014-04-15T14:02:22","guid":{"rendered":"https:\/\/www.techopedia.com\/definition\/smtp-relay\/"},"modified":"2014-04-15T14:02:22","modified_gmt":"2014-04-15T14:02:22","slug":"smtp-relay","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay","title":{"rendered":"SMTP Relay"},"content":{"rendered":"

What Does SMTP Relay Mean?<\/span><\/h2>\n

A simple mail transfer protocol relay (SMTP relay) is a service that is used as a means to transport email messages in between different email hosting services, servers and\/or domains. \n<\/p>\n

Techopedia Explains SMTP Relay<\/span><\/h2>\n

An SMTP relay is primarily used when an email needs to be delivered to a domain different from the user\u2019s domain. For example, if an email is being sent from yourname@yourdomain.com to friend@frienddomian.com, SMTP relay is required to transmit messages between each domain. SMTP relay is generally a third-party application or service that mediates the process of sending, delivering and fetching email messages between different email hosts. <\/p>\n

SMTP relays are also used in email composing applications such as Outlook. Users can configure their email address on the software and are able to send emails from multiple email addresses (of the same or a different domain) without the need to consider domain, ISP or organization.<\/p>\n","protected":false},"excerpt":{"rendered":"

What Does SMTP Relay Mean? A simple mail transfer protocol relay (SMTP relay) is a service that is used as a means to transport email messages in between different email hosting services, servers and\/or domains. Techopedia Explains SMTP Relay An SMTP relay is primarily used when an email needs to be delivered to a domain […]<\/p>\n","protected":false},"author":7813,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","om_disable_all_campaigns":false,"footnotes":""},"definitioncat":[245],"class_list":["post-13402","definition","type-definition","status-publish","format-standard","hentry","definitioncat-internet"],"acf":[],"yoast_head":"\nWhat is an SMTP Relay? - Definition from Techopedia<\/title>\n<meta name=\"description\" content=\"This definition explains the meaning of SMTP Relay and why it matters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SMTP Relay\" \/>\n<meta property=\"og:description\" content=\"This definition explains the meaning of SMTP Relay and why it matters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\" \/>\n<meta property=\"og:site_name\" content=\"Techopedia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/techopedia\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@techopedia\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\"},\"author\":{\"name\":\"Margaret Rouse\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\"},\"headline\":\"SMTP Relay\",\"datePublished\":\"2014-04-15T14:02:22+00:00\",\"dateModified\":\"2014-04-15T14:02:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\"},\"wordCount\":161,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#respond\"]}],\"articleSection\":\"\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\",\"url\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\",\"name\":\"What is an SMTP Relay? - Definition from Techopedia\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/#website\"},\"datePublished\":\"2014-04-15T14:02:22+00:00\",\"dateModified\":\"2014-04-15T14:02:22+00:00\",\"description\":\"This definition explains the meaning of SMTP Relay and why it matters.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.techopedia.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Internet\",\"item\":\"https:\/\/www.techopedia.com\/topic\/102\/internet\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Term\",\"item\":\"https:\/\/www.techopedia.com\/definition\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"SMTP Relay\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.techopedia.com\/#website\",\"url\":\"https:\/\/www.techopedia.com\/\",\"name\":\"Techopedia\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.techopedia.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.techopedia.com\/#organization\",\"name\":\"Techopedia\",\"url\":\"https:\/\/www.techopedia.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg\",\"contentUrl\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg\",\"width\":209,\"height\":37,\"caption\":\"Techopedia\"},\"image\":{\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/techopedia\/\",\"https:\/\/x.com\/techopedia\",\"https:\/\/www.linkedin.com\/company\/techopedia\/\",\"https:\/\/www.youtube.com\/c\/Techopedia\"],\"publishingPrinciples\":\"https:\/\/www.techopedia.com\/about\/editorial-policy\",\"ownershipFundingInfo\":\"https:\/\/www.techopedia.com\/about\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\",\"name\":\"Margaret Rouse\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg\",\"contentUrl\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg\",\"caption\":\"Margaret Rouse\"},\"description\":\"Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret\u2019s idea of \u200b\u200ba fun day is to help IT and business professionals to learn to speak each other\u2019s highly specialized languages.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/margaretrouse\/\",\"https:\/\/x.com\/https:\/\/twitter.com\/@techdefinitions\"],\"knowsAbout\":[\"Technology expert\"],\"url\":\"https:\/\/www.techopedia.com\/contributors\/margaret-rouse\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"What is an SMTP Relay? - Definition from Techopedia","description":"This definition explains the meaning of SMTP Relay and why it matters.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay","og_locale":"en_US","og_type":"article","og_title":"SMTP Relay","og_description":"This definition explains the meaning of SMTP Relay and why it matters.","og_url":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay","og_site_name":"Techopedia","article_publisher":"https:\/\/www.facebook.com\/techopedia\/","twitter_card":"summary_large_image","twitter_site":"@techopedia","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#article","isPartOf":{"@id":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay"},"author":{"name":"Margaret Rouse","@id":"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5"},"headline":"SMTP Relay","datePublished":"2014-04-15T14:02:22+00:00","dateModified":"2014-04-15T14:02:22+00:00","mainEntityOfPage":{"@id":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay"},"wordCount":161,"commentCount":0,"publisher":{"@id":"https:\/\/www.techopedia.com\/#organization"},"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#respond"]}],"articleSection":""},{"@type":"WebPage","@id":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay","url":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay","name":"What is an SMTP Relay? - Definition from Techopedia","isPartOf":{"@id":"https:\/\/www.techopedia.com\/#website"},"datePublished":"2014-04-15T14:02:22+00:00","dateModified":"2014-04-15T14:02:22+00:00","description":"This definition explains the meaning of SMTP Relay and why it matters.","breadcrumb":{"@id":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.techopedia.com\/definition\/30013\/smtp-relay#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.techopedia.com\/"},{"@type":"ListItem","position":2,"name":"Internet","item":"https:\/\/www.techopedia.com\/topic\/102\/internet"},{"@type":"ListItem","position":3,"name":"Term","item":"https:\/\/www.techopedia.com\/definition"},{"@type":"ListItem","position":4,"name":"SMTP Relay"}]},{"@type":"WebSite","@id":"https:\/\/www.techopedia.com\/#website","url":"https:\/\/www.techopedia.com\/","name":"Techopedia","description":"","publisher":{"@id":"https:\/\/www.techopedia.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.techopedia.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.techopedia.com\/#organization","name":"Techopedia","url":"https:\/\/www.techopedia.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg","contentUrl":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg","width":209,"height":37,"caption":"Techopedia"},"image":{"@id":"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/techopedia\/","https:\/\/x.com\/techopedia","https:\/\/www.linkedin.com\/company\/techopedia\/","https:\/\/www.youtube.com\/c\/Techopedia"],"publishingPrinciples":"https:\/\/www.techopedia.com\/about\/editorial-policy","ownershipFundingInfo":"https:\/\/www.techopedia.com\/about"},{"@type":"Person","@id":"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5","name":"Margaret Rouse","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.techopedia.com\/#\/schema\/person\/image\/","url":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg","contentUrl":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg","caption":"Margaret Rouse"},"description":"Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret\u2019s idea of \u200b\u200ba fun day is to help IT and business professionals to learn to speak each other\u2019s highly specialized languages.","sameAs":["https:\/\/www.linkedin.com\/in\/margaretrouse\/","https:\/\/x.com\/https:\/\/twitter.com\/@techdefinitions"],"knowsAbout":["Technology expert"],"url":"https:\/\/www.techopedia.com\/contributors\/margaret-rouse"}]}},"_links":{"self":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition\/13402"}],"collection":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition"}],"about":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/types\/definition"}],"author":[{"embeddable":true,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/users\/7813"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/comments?post=13402"}],"version-history":[{"count":0,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition\/13402\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/media?parent=13402"}],"wp:term":[{"taxonomy":"definitioncat","embeddable":true,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definitioncat?post=13402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}