{"id":315,"date":"2023-01-27T10:00:00","date_gmt":"2023-01-27T02:00:00","guid":{"rendered":"https:\/\/lookafter.com\/blog\/?p=315"},"modified":"2023-04-14T18:19:17","modified_gmt":"2023-04-14T10:19:17","slug":"securing-email-with-ssl-tls-and-starttls","status":"publish","type":"post","link":"https:\/\/lookafter.com\/blog\/securing-email-with-ssl-tls-and-starttls\/","title":{"rendered":"Securing Email With SSL, TLS and STARTTLS"},"content":{"rendered":"\n<p><a href=\"https:\/\/lookafter.com\/blog\/\">Home<\/a> > <a href=\"https:\/\/lookafter.com\/blog\/category\/empowering-tips\/\">Empowering Tips<\/a> > Securing Email With SSL, TLS and STARTTLS<\/p>\n\n\n\n<div class=\"wp-block-essential-blocks-advanced-heading\"><div class=\"eb-parent-wrapper eb-parent-eb-advance-heading-bm2th3z \"><div class=\"eb-advance-heading-wrapper eb-advance-heading-bm2th3z button-1\" data-id=\"eb-advance-heading-bm2th3z\"><h1 class=\"eb-ah-title\">Securing Email With SSL, TLS and STARTTLS<\/h1><p class=\"eb-ah-subtitle\">January 27, 2023<\/p><\/div><\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS-1024x538.jpg\" alt=\"\" class=\"wp-image-317\" srcset=\"https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS-1024x538.jpg 1024w, https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS-300x158.jpg 300w, https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS-150x79.jpg 150w, https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS-768x403.jpg 768w, https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS-360x189.jpg 360w, https:\/\/lookafter.com\/blog\/wp-content\/uploads\/2023\/01\/Securing-Email-With-SSL-TLS-STARTTLS.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>As one of the most widely used communication methods these days, email is a constant target of cyber threats. From phishing mails to eavesdropping attack, email users are faced with multiple security risks if email security best practices are not employed. Using a strong password renders a pleasant first line of defense \u2013 the next would be using a secure connection when sending and receiving emails. <\/p>\n\n\n\n<p>In this article, we will talk about the standard protocols used to secure email transmissions \u2013 SSL, TLS and STARTTLS \u2013 what are they, and why should they be used.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"root-eb-toc-rvwj6ms wp-block-essential-blocks-table-of-contents\"><div class=\"eb-parent-wrapper eb-parent-eb-toc-rvwj6ms \"><div class=\"eb-toc-container eb-toc-rvwj6ms  eb-toc-is-not-sticky eb-toc-collapsible eb-toc-initially-not-collapsed eb-toc-scrollToTop style-1 list-style-none\" data-scroll-top=\"false\" data-scroll-top-icon=\"fas fa-angle-up\" data-collapsible=\"true\" data-sticky-hide-mobile=\"false\" data-sticky=\"false\" data-scroll-target=\"scroll_to_toc\" data-copy-link=\"false\" data-editor-type=\"\" data-hide-desktop=\"false\" data-hide-tab=\"false\" data-hide-mobile=\"false\" data-itemCollapsed=\"false\" data-highlight-scroll=\"false\"><div class=\"eb-toc-header\"><h2 class=\"eb-toc-title\">Table of Contents<\/h2><\/div><div class=\"eb-toc-wrapper \" data-headers=\"[{&quot;level&quot;:2,&quot;content&quot;:&quot;What is SSL\\\/TLS?&quot;,&quot;text&quot;:&quot;What is SSL\\\/TLS?&quot;,&quot;link&quot;:&quot;what-is-ssltls&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;What is STARTTLS?&quot;,&quot;text&quot;:&quot;What is STARTTLS?&quot;,&quot;link&quot;:&quot;what-is-starttls&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Why should you use SSL, TLS or STARTTLS?&quot;,&quot;text&quot;:&quot;Why should you use SSL, TLS or STARTTLS?&quot;,&quot;link&quot;:&quot;why-should-you-use-ssl-tls-or-starttls&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;How to enable SSL\\\/TLS and STARTTLS for email?&quot;,&quot;text&quot;:&quot;How to enable SSL\\\/TLS and STARTTLS for email?&quot;,&quot;link&quot;:&quot;how-to-enable-ssltls-and-starttls-for-email&quot;}]\" data-visible=\"[false,true,false,false,false,false]\" data-delete-headers=\"[{&quot;label&quot;:&quot;What is SSL\\\/TLS?&quot;,&quot;value&quot;:&quot;what-is-ssltls&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;What is STARTTLS?&quot;,&quot;value&quot;:&quot;what-is-starttls&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Why should you use SSL, TLS or STARTTLS?&quot;,&quot;value&quot;:&quot;why-should-you-use-ssl-tls-or-starttls&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;How to enable SSL\\\/TLS and STARTTLS for email?&quot;,&quot;value&quot;:&quot;how-to-enable-ssltls-and-starttls-for-email&quot;,&quot;isDelete&quot;:false}]\" data-smooth=\"true\" data-top-offset=\"\"><div class=\"eb-toc__list-wrap\"><ul class='eb-toc__list'><li><a href=\"#what-is-ssltls\">What is SSL\/TLS?<\/a><li><a href=\"#what-is-starttls\">What is STARTTLS?<\/a><li><a href=\"#why-should-you-use-ssl-tls-or-starttls\">Why should you use SSL, TLS or STARTTLS?<\/a><li><a href=\"#how-to-enable-ssltls-and-starttls-for-email\">How to enable SSL\/TLS and STARTTLS for email?<\/a><\/ul><\/div><\/div><\/div><\/div><\/div>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong><strong><strong>What is SSL\/TLS?<\/strong><\/strong><\/strong><\/strong><\/h2>\n\n\n\n<p><strong>Secure Sockets Layer (SSL)<\/strong> and <strong>Transport Layer Security (TLS)<\/strong> are security protocols designed for securing the connection between a client and the server with encryption. Both SSL and TLS work much the same, with TLS being the improved and up-to-date version. SSL has since been deprecated, but its name is still widely being used. Some people still use SSL to refer to TLS, while many use the term \u201cSSL\/TLS\u201d.<\/p>\n\n\n\n<p>With SSL\/TLS, when a user sends or receives an email, the email client initiates a handshake with the server. During the handshake process, the email client tells the server which SSL\/TLS version and the encryption method it is using. The server then returns its TLS digital certificate for the email client to verify its identity. Once the email server\u2019s identity is verified and trusted by the email client, the email can be sent or received using an encrypted connection.<\/p>\n\n\n\n<p>SSL\/TLS typically connects through secure ports like 465, 993 and 995, instead of the default ports (25, 143, 110).<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong><strong><strong><strong><strong><strong><strong><strong>What is STARTTLS?<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n\n\n<p>STARTTLS is an email protocol command that informs the email server that the email client wants to &#8220;upgrade&#8221; an existing insecure connection to a secure one, by using an SSL or a TLS protocol.<\/p>\n\n\n\n<p>Email clients come with default ports like 25, 143 and 110 to establish connection with the email server. But the connection formed through these ports are not encrypted, and email messages that are transmitted through this medium can be easily intercepted by unauthorized party. STARTTLS will ask the email server if it supports an encrypted method. If it does, then the existing unsecure connection will be encrypted for emails to be transmitted securely.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong><strong><strong><strong><strong><strong>Why should you use SSL, TLS or STARTTLS?<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n\n\n<p>When you access your emails through an IMAP or a POP connection, or send emails through an SMTP connection, your username and password are sent in clear text across the Internet. This means there is a potential risk that someone can intercept your network traffic and see your username and password. If hackers obtain these details, they can access and read your emails, steal confidential information, send spam mails or viruses using your email account.<\/p>\n\n\n\n<p>SSL\/TLS and STARTTLS connections encrypt your email traffic so that it cannot be read at any point between your computer and the email server.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong><strong><strong><strong>How to enable SSL\/TLS and STARTTLS for email?<\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n\n\n<p>Open your email client\u2019s configuration panel and choose \u201cSSL\/TLS\u201d (or \u201cSSL\u201d, or \u201cTLS\u201d) or \u201cSTARTTLS\u201d at the \u201cEncryption Method\u201d field. Some email clients may use different name for this field, like \u201cConnection Security\u201d or \u201cSecurity Type\u201d. Some have an even more direct display for this setting, with a simple \u201cUse SSL\u201d checkbox. <\/p>\n\n\n\n<p>Lookafter email server supports the following ports and encryption mode:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\"><strong>Connection<\/strong><\/th><th><strong>Encryption Type<\/strong><\/th><th class=\"has-text-align-left\" data-align=\"left\"><strong>Port Number<\/strong><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">IMAP<\/td><td>SSL\/TLS<br>STARTTLS<\/td><td class=\"has-text-align-left\" data-align=\"left\">993<br>143<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">POP<\/td><td>SSL\/TLS<br>STARTTLS<\/td><td class=\"has-text-align-left\" data-align=\"left\">995<br>110<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">SMTP<\/td><td>SSL\/TLS<br>STARTTLS<\/td><td class=\"has-text-align-left\" data-align=\"left\">465<br>587<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Find out more about email secure ports and setting in this <a href=\"https:\/\/go.agnx.com\/34\" target=\"_blank\" rel=\"noopener\" title=\"\">article<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Failure to secure emails put your company and yourself at risk of cyberattacks. Using SSL, TLS or STARTTLS is one of the few ways to prevent hackers from intercepting emails when they are sent or received.<\/p>\n","protected":false},"author":1,"featured_media":317,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[6],"tags":[16,17],"class_list":["post-315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-empowering-tips","tag-email","tag-security-privacy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Securing Email With SSL, TLS and STARTTLS<\/title>\n<meta name=\"description\" content=\"Failure to secure emails put your company and yourself at cyberattacks risk. 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