{"id":8363,"date":"2019-01-21T08:30:17","date_gmt":"2019-01-21T08:30:17","guid":{"rendered":"https:\/\/dbtut.com\/?p=8363"},"modified":"2019-01-21T08:44:19","modified_gmt":"2019-01-21T08:44:19","slug":"what-is-dead-letter","status":"publish","type":"post","link":"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/","title":{"rendered":"What is dead.letter?"},"content":{"rendered":"<p>When you search for different files while working, you can see the file named dead.letter.<\/p>\n<p><strong>Why does dead.letter occur?<\/strong><\/p>\n<p>The cause of dead.letter is to cancel the command that you run when you send mail. When you look inside, you can find out the e-mails you have canceled and detailed information about it as follows.<\/p>\n<p id=\"HlnjWxC\"><img loading=\"lazy\" decoding=\"async\" width=\"371\" height=\"158\" class=\"size-full wp-image-8364  aligncenter\" src=\"https:\/\/dbtut.com\/wp-content\/uploads\/2019\/01\/img_5c4582e446740.png\" alt=\"\" \/><\/p>\n\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_8363\" class=\"pvc_stats all  \" data-element-id=\"8363\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/dbtut.com\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>When you search for different files while working, you can see the file named dead.letter. Why does dead.letter occur? The cause of dead.letter is to cancel the command that you run when you send mail. When you look inside, you can find out the e-mails you have canceled and detailed information about it as follows.<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_8363\" class=\"pvc_stats all  \" data-element-id=\"8363\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/dbtut.com\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":366,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[299],"tags":[1732],"class_list":["post-8363","post","type-post","status-publish","format-standard","","category-linux","tag-dead-letter"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is dead.letter? - Database Tutorials<\/title>\n<meta name=\"description\" content=\"What is dead.letter?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is dead.letter? - Database Tutorials\" \/>\n<meta property=\"og:description\" content=\"What is dead.letter?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/\" \/>\n<meta property=\"og:site_name\" content=\"Database Tutorials\" \/>\n<meta property=\"article:published_time\" content=\"2019-01-21T08:30:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-01-21T08:44:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dbtut.com\/wp-content\/uploads\/2019\/01\/img_5c4582e446740.png\" \/>\n<meta name=\"author\" content=\"Faruk Erdem\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Faruk Erdem\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/\"},\"author\":{\"name\":\"Faruk Erdem\",\"@id\":\"https:\/\/dbtut.com\/#\/schema\/person\/a7dfc5684c116e536b4e93ee214ccbfb\"},\"headline\":\"What is dead.letter?\",\"datePublished\":\"2019-01-21T08:30:17+00:00\",\"dateModified\":\"2019-01-21T08:44:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/\"},\"wordCount\":65,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/dbtut.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/dbtut.com\/wp-content\/uploads\/2019\/01\/img_5c4582e446740.png\",\"keywords\":[\"dead.letter\"],\"articleSection\":[\"Linux\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/\",\"url\":\"https:\/\/dbtut.com\/index.php\/2019\/01\/21\/what-is-dead-letter\/\",\"name\":\"What is dead.letter? 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