{"id":24586,"date":"2022-03-18T12:19:14","date_gmt":"2022-03-18T12:19:14","guid":{"rendered":"https:\/\/easydmarc.com\/blog\/?p=24586"},"modified":"2025-07-30T14:08:25","modified_gmt":"2025-07-30T14:08:25","slug":"email-authentication-basics-for-saas-teams","status":"publish","type":"post","link":"https:\/\/easydmarc.com\/blog\/email-authentication-basics-for-saas-teams\/","title":{"rendered":"Email Authentication Basics for SaaS Teams"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Email is integral to all online businesses, and so is the practice of <\/span><b>authenticating email domains<\/b><span style=\"font-weight: 400;\">. SaaS companies rely heavily on email for marketing, cold <a href=\"https:\/\/www.customshow.com\/examples-of-sales-presentations-to-inspire-your-sales-pitch\/\">sales pitches<\/a>, product launches, customer communications, newsletters, and more.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">But if you\u2019re part of a SaaS company, how do you know spoofers aren\u2019t misusing your reputation and brand name? That\u2019s why a robust <\/span><b>SaaS email authentication<\/b><span style=\"font-weight: 400;\"> system is crucial.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">According to Statista, more than\u00a0<\/span><a href=\"https:\/\/www.statista.com\/statistics\/456500\/daily-number-of-e-mails-worldwide\/\"><span style=\"font-weight: 400;\">306.4 billion emails were sent in 2020<\/span><\/a><span style=\"font-weight: 400;\">, a number expected to grow to 376.4 billion by 2025. Meanwhile, Deloitte reports that<\/span> <a href=\"https:\/\/www.deloitte.com\/southeast-asia\/en\/about.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">91% of all cybercrimes<\/span><\/a><span style=\"font-weight: 400;\"> begin with <a href=\"https:\/\/easydmarc.com\/blog\/what-is-spoofing-definition-and-explanation\/\">spoofing<\/a> an unexpected victim.\u00a0<\/span><\/p>\n<p><b>Email authentication<\/b><span style=\"font-weight: 400;\"> is no longer a luxury. It\u2019s become vital to protect your business, brand reputation, and trust relationships with partners and clients.\u00a0<\/span><a href=\"https:\/\/easydmarc.com\/blog\/ignoring-email-authentication-will-cost-you-time-and-sales\/\"><span style=\"font-weight: 400;\">Ignoring email authentication will cost you<\/span><\/a><span style=\"font-weight: 400;\"> more than just time and sales. Read on to learn more.<\/span><\/p>\n<h2><b>What is Email Authentication?\u00a0<\/b><\/h2>\n<p><b>Email authentication for SaaS companies<\/b><span style=\"font-weight: 400;\"> is a technical solution that verifies whether an email comes from the claimed sender only. As such, it blocks or prevents malicious and fraudulent acts like phishing and spamming.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The Sender Policy Framework (SPF), DomainKeys Identified Email (DKIM), and Domain-based Message Authentication, Reporting, and Conformance (DMARC) are the three common<\/span><b> email authentication<\/b><span style=\"font-weight: 400;\"> standards.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">We\u2019ll focus on understanding their basics. But before moving ahead, here\u2019s why SaaS companies should invest in these services:<\/span><\/p>\n<h3><b>Benefits of Email Authentication for SaaS Companies:<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Enhances a positive brand image<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Protects your customers from cybercriminals<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Minimizes the possibility of data breaching<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Bolsters your brand\u2019s trustworthiness<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Improves email deliverability<\/span><\/li>\n<\/ul>\n<h2><b>What is the Mechanism Behind Email Authentication?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The <\/span><b>basic authentication of an email<\/b><span style=\"font-weight: 400;\"> involves confirming the origin of the email domain ownership of Message Transfer Agents (MTAs). MTAs transfer emails between the computer of a sender and a recipient. Thus, they are very reliable for catching <a href=\"https:\/\/easydmarc.com\/blog\/what-is-spam-email-and-how-to-prevent-it\/\">spam or fraudulent emails<\/a>.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In easier words, the domain name system (DNS) stores <\/span><b>email authentication<\/b><span style=\"font-weight: 400;\"> protocols of all the domains and subdomains. To validate an email\u2019s authenticity, the sender&#8217;s and receiver&#8217;s servers communicate with each other. This confirms the origin of an email.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For example, you receive a surprise gift from a friend. What\u2019s the first thing you\u2019d do?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You\u2019d call them to find out whether they have actually sent you a gift. If they confirm, you\u2019d open up the parcel, right?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">But what if they say, \u201cNo, I haven\u2019t sent you any gift\u201d? You\u2019d send the suspicious parcel back as it may contain something dangerous.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The same concept applies when striving to. <\/span><b>authenticate your email domain<\/b><span style=\"font-weight: 400;\"> and improve your email security. Our<\/span>\u00a0<a href=\"https:\/\/easydmarc.com\/blog\/the-small-business-guide-to-secure-email\/\"><span style=\"font-weight: 400;\">Small Business Guide to Secure Email<\/span><\/a><span style=\"font-weight: 400;\"> explains more.<\/span><\/p>\n<h2><b>Steps for Email Authentication<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Although the following steps may vary a bit from protocol to protocol, the basic structure stays the same.<\/span><\/p>\n<ul>\n<li><b>STEP 1: <\/b><span style=\"font-weight: 400;\">The domain owner sets certain rules for emails sent from that particular domain and subdomain.<\/span><\/li>\n<li><b>STEP 2:<\/b><span style=\"font-weight: 400;\"> These rules are then used for email authentication and recorded in the DNS.<\/span><\/li>\n<li><b>STEP 3: <\/b><span style=\"font-weight: 400;\">The recipient&#8217;s server validates every email\u2019s authenticity by cross-checking it with the rules recorded in the DNS.<\/span><\/li>\n<li><b>STEP 4: <\/b><span style=\"font-weight: 400;\">If the email is authentic, it proceeds to the recipient&#8217;s inbox. If not, then depending upon the instructions stored in the DNS, it is either quarantined or rejected.<\/span><\/li>\n<li><b>STEP 5:<\/b><span style=\"font-weight: 400;\"> A quarantined email goes into the recipient&#8217;s spam or junk folder, while a rejected email travels back to the sender&#8217;s inbox as a failed email.<\/span><\/li>\n<\/ul>\n<h2><b>Three Common SaaS Email Authentication Protocols<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">As mentioned above, the three widely used <\/span><b>SaaS email authenticatio<\/b><span style=\"font-weight: 400;\">n protocols are SPF, DKIM, and DMARC. Although we\u2019ve talked about them a lot on our blog, let\u2019s quickly gloss over each.<\/span><\/p>\n<h3><b>SPF<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">The Sender Policy Framework (SPF), tells the DNS which hostnames and IP addresses the domain owner shares for sending emails. So, any emails from unrecognized hostnames of IP addresses are highlighted as inauthentic since they don\u2019t match the DNS record.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To understand this in a better way, you can reconsider the gift example. Suppose the sender&#8217;s details mentioned on the package don\u2019t match that of your friend&#8217;s. In this situation, you\u2019ll reject the package. Similarly, the email is also rejected from entering the desired recipient&#8217;s inbox folder when deploying the SPF protocol to <\/span><b>authenticate the email domain<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<h3><b>DKIM<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">This encrypted signature goes to the recipient&#8217;s server along with the email. It\u2019s evaluated for authenticity.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In total, two keys are involved in the process. First, the administrator records a public key on the DNS. Second, a private key is used by the email servers. The encrypted digital signature allows the recipient&#8217;s server to retrieve the key for basic email authentication.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The<\/span><a href=\"https:\/\/dmarc.org\/stats\/dkim\/\"><span style=\"font-weight: 400;\"> number of keys tripled on DKIM<\/span><\/a><span style=\"font-weight: 400;\"> between 2020 and 2021. The 1024-bit keys increased two-fold and 2048-bit keys by 4.5 times. This simply supports the increasing trust of customers looking for enterprise email security.\u00a0<\/span><\/p>\n<h3><b>DMARC<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Domain-based Message Authentication, Reporting, and Conformance (DMARC) isn\u2019t a direct <\/span><b>SaaS email authentication<\/b><span style=\"font-weight: 400;\"> protocol. Rather, it specifies whether the sending domain has deployed SPF, DKIM, or both for <\/span><b>email authentication<\/b><span style=\"font-weight: 400;\">. It\u2019s gaining immense popularity and appreciation as it builds a common framework using <a href=\"https:\/\/easydmarc.com\/blog\/constant-contact-spf-and-dkim-setup\/\">SPF and DKIM<\/a>\u2014which consequently strengthens the system against cybercriminals.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A legitimate email sometimes fails the SPF or DKIM protocols meant for <\/span><b>SaaS email authentication<\/b><span style=\"font-weight: 400;\">. Despite this, the mailbox providers allow it to enter if they appear to come from a credible and genuine source. In this situation, DMARC clarifies the action required.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">One major reason to <\/span><a href=\"https:\/\/app.easydmarc.com\/register\"><span style=\"font-weight: 400;\">invest in DMARC<\/span><\/a><span style=\"font-weight: 400;\"> services includes a report that contains the following information:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Servers sending emails with your domain name<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Percentage of DMARC authenticated emails<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Servers failing to pass DMARC authentication<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Actions taken on emails failing authentication<\/span><\/li>\n<\/ul>\n<h2><b>The Bottom Line<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Nobody in the world wants cybercriminals to attack their website. The best solution to protect your SaaS business is by simply investing in the means to <\/span><b>authenticate your email domain<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Use our\u00a0<\/span><a href=\"https:\/\/easydmarc.com\/tools\/ip-domain-reputation-check\"><span style=\"font-weight: 400;\">free domain reputation checker<\/span><\/a><span style=\"font-weight: 400;\"> to see whether your domain has been associated with any kind of cybercrime like phishing and spamming.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Email is integral to all online businesses, and &#8230;<\/p>\n","protected":false},"author":5,"featured_media":32519,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[204,291,203],"tags":[],"class_list":["post-24586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-email-authentication","category-email-security"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Email Authentication Basics for SaaS Teams | EasyDMARC<\/title>\n<meta name=\"description\" content=\"SaaS companies work with tons of client information, and protecting them is crucial. 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