--- title: "Blog - Page 13 of 17 | AutoSPF" description: "Expert guides on SPF, DKIM, DMARC, email authentication, and deliverability. Learn how to manage SPF records and improve email security." image: "https://autospf.com/images/og-default.png" canonical: "https://autospf.com/blog/page/13/" --- Knowledge Base # Blog Expert guides on SPF, DKIM, DMARC, and email security. [All](/blog/) [ Foundational ](/foundational/)[ Intermediate ](/intermediate/)[ Advanced ](/advanced/) [ Intermediate 6 min Optimizing Email Deliverability: Strategies for Success Your carefully crafted marketing campaign just launched, complete with compelling subject lines and perfectly timed send schedules. May 28, 2025 ](/blog/optimizing-email-deliverability-strategies-for-success/)[ Intermediate 5 min Understanding the relevance of Sender Policy Framework (SPF) in 2025 Sender Policy Framework (SPF) is an email authentication protocol designed to prevent email spoofing - a common tactic in spam and phishing attacks. May 21, 2025 ](/blog/understanding-the-relevance-of-sender-policy-framework-spf-in-2025/)[ Intermediate 15 min Kitterman SPF Check: A Comprehensive Guide to Performance Analysis In the digital landscape, email is still one of the primary ways we communicate, whether for business proposals or casual chats. May 20, 2025 ](/blog/kitterman-spf-check-a-comprehensive-guide-to-performance-analysis/)[ Intermediate 15 min KnowBe4 SPF Record: How to Set Up for Maximum Email Security In an age where email remains a primary communication tool for businesses, the dangers lurking in our inboxes are more real than ever. May 16, 2025 ](/blog/knowbe4-spf-record-setup-guide-for-maximum-email-security/)[ Intermediate 5 min BEC and FTF scams are leading to a steep rise in cyber insurance claims! As per the recent Coalition 2025 Cyber Claims Report, business email compromise-based attacks (BEC) and fund transfer frauds (FTF) have led to a steep surge in. May 15, 2025 ](/blog/bec-ftf-scams-driving-rise-in-cyber-insurance-claims/)[ Foundational 7 min What is an executive phishing attack and how to prevent it? Threat actors try different tactics to intercept and steal data, which is further exploited for financial gain. One such tactic is an executive phishing attack. May 9, 2025 ](/blog/what-is-executive-phishing-attack-how-to-prevent-it-now/)[ Advanced 5 min The healthcare industry is the most sought-after by cybercriminals The healthcare industry depends a lot on technology - whether it’s online appointments, digital health records, or connected medical devices. May 7, 2025 ](/blog/the-healthcare-industry-is-the-most-sought-after-by-cybercriminals/)[ Intermediate 5 min Fixing typical SPF errors SPF prevents spoofing by ensuring that only trusted sources can send emails using your domain. But for it to work well, the SPF record must be error-free. May 2, 2025 ](/blog/fixing-typical-spf-errors/)[ Intermediate 16 min WPEngine SPF Record: Complete Guide to Proper Email Setup Email may seem like a simple tool for communication, but behind the scenes, it’s a battleground for security and credibility. Apr 30, 2025 ](/blog/wpengine-spf-record-complete-guide-to-proper-email-setup/)[ Foundational 13 min Mailchimp SPF Record Setup: Ensure Your Email Deliverability Setting up your email system can often feel like tackling a giant puzzle - each piece needs to fit just right for everything to work smoothly. Apr 28, 2025 ](/blog/mailchimp-spf-record-setup-ensure-your-email-deliverability/)[ Intermediate 13 min Wix SPF Record: A Complete Guide to Configure DNS Settings Email security can often feel like a daunting task, especially when you hear about phishing scams and spoofing. Apr 25, 2025 ](/blog/wix-spf-record-a-complete-guide-to-configure-dns-settings/)[ Intermediate 4 min What are dangling SPF records and why are they a threat to email security? SPF records are highly sensitive - even a minor change can invalidate them or trigger an error, resulting in improper email authentication. Apr 22, 2025 ](/blog/what-are-dangling-spf-records-and-email-security-threats/)[ Intermediate 13 min Email Rejected Per SPF Policy: Troubleshooting Sender Authentication Issues Email communication is a critical lifeline for businesses and individuals alike, but what happens when that essential connection breaks down? Apr 17, 2025 ](/blog/email-rejected-per-spf-policy-troubleshooting-sender-authentication-issues/)[ Intermediate 15 min Zix SPF Record: A Complete Guide to Configuration and Setup To authenticate email sent through Zix (now part of OpenText Cybersecurity), add the Zix-provided include mechanism to your SPF record. The exact include string varies by product tier (ZixEncrypt, ZixProtect, ZixMail). Learn the exact syntax and how to combine with existing senders. Apr 16, 2025 ](/blog/zix-spf-record-a-complete-guide-to-configuration-and-setup/)[ Advanced 5 min SPF and multi-tenant email service providers: a collision course? During the 2024 Black Friday to Cyber Monday (BFCM) period, Mailchimp customers sent billions of emails. Apr 15, 2025 ](/blog/spf-and-multi-tenant-email-service-providers-a-collision-course/)[ Intermediate 5 min Efficient DMARC tools are needed after the UK NCSC changes DMARC (RFC 7489) ties SPF and DKIM together by requiring alignment between the envelope sender and the visible From header. Apr 9, 2025 ](/blog/efficient-dmarc-tools-are-needed-after-the-uk-ncsc-changes/)[ Intermediate 18 min SPF Records in DNS: A Complete Guide for Email Security An SPF record is a DNS TXT record at the domain apex that declares which IP addresses and servers are authorized to send email for that domain. Learn how SPF records are published, how receiving servers evaluate them during SMTP, and how to avoid the most common DNS-level configuration mistakes. Apr 4, 2025 ](/blog/spf-records-in-dns-a-complete-guide-for-email-security/)[ Foundational 8 min Are no-reply emails safe? Understanding the security risks of these emails If you regularly send out marketing emails for your business, you probably know what kind of emails we’re talking about. Apr 3, 2025 ](/blog/are-no-reply-emails-safe-security-risks-explained/)[ Foundational 17 min SPF Records for Email: Essential Authentication Setup for Your Domain SPF records, or Sender Policy Framework records, are essential components of email authentication that allow domain owners to specify which IP addresses are. Apr 3, 2025 ](/blog/spf-records-for-email-essential-authentication-setup-for-your-domain/)[ Intermediate 17 min Brevo SPF Record: A Complete Guide to Optimize Email Deliverability A Brevo SPF (Sender Policy Framework) record is essential for ensuring that emails sent from your domain are properly authenticated, improving deliverability. Apr 2, 2025 ](/blog/brevo-spf-record-a-complete-guide-to-optimize-email-deliverability/)[ Advanced 6 min Shadow admins: How do you uncover the mask of these stealthy accounts? Most organizations have strict norms and regulations on what resources their employees can access - like which systems are open to all. Apr 1, 2025 ](/blog/shadow-admins-uncovering-the-mask-of-stealthy-accounts/)[ Advanced 16 min Understanding the Trello Breach: Security Concerns and Expert Response The Trello breach, which occurred in January 2024, resulted in approximately 15 million users having their email addresses, names, usernames. Mar 28, 2025 ](/blog/understanding-the-trello-breach-security-concerns-and-expert-response/)[ Intermediate 5 min Multiple SPF records open avenues for phishing If your SPF is not working efficiently, chances are that your domain is linked with multiple SPF records. Mar 25, 2025 ](/blog/multiple-spf-records-open-avenues-for-phishing/)[ Foundational 17 min What Is SPF Alignment? Understanding Email Security Protocols SPF alignment is a DMARC concept: for DMARC to pass via SPF, the domain in the Return-Path (envelope sender) must match the domain in the From header. Relaxed alignment (default) allows subdomain matches; strict alignment requires an exact match. SPF can pass while DMARC still fails alignment. Mar 24, 2025 ](/blog/what-is-spf-alignment-understanding-email-security-protocols/)[ Foundational 17 min Microsoft Security Alert Email: How to Recognize Phishing and Scams If you receive a Microsoft security alert email, first verify its authenticity by checking that it comes from ‘account-security-noreply@accountprotection. Mar 21, 2025 ](/blog/microsoft-security-alert-email-how-to-recognize-phishing-and-scams/)[ Intermediate 6 min Why is IoT email authentication a hot topic? Why is IoT email authentication a hot topic? explains SPF record management, sender authentication, troubleshooting steps, and how AutoSPF helps maintain. Mar 20, 2025 ](/blog/why-is-iot-email-authentication-a-hot-topic/)[ Intermediate 4 min Managing relaying in application emails Over the past few years, there has been a significant evolvement in email relay controls, especially in how application-generated emails are handled. Mar 13, 2025 ](/blog/managing-relaying-in-application-emails/)[ Advanced 3 min Gmail, Outlook, and Apple Mail warn users ahead of anticipated AI menaces in 2025 Gone are the days when incorrect grammar, poor graphics, an unprofessional tone, and other flaws were red flags of a phishing email. Mar 6, 2025 ](/blog/gmail-outlook-apple-mail-warn-users-about-ai-threats-2025/)[ Intermediate 16 min Kitterman SPF Check: A Comprehensive Guide to Accurate Analysis Email is a major part of our daily communication, yet many people overlook the importance of securing it. Mar 6, 2025 ](/blog/kitterman-spf-check-a-comprehensive-guide-to-accurate-analysis/)[ Intermediate 5 min Do even ESPs get SPF wrong? Here’s what you should know Email security is a two-way street, which means both the client and the email service provider are responsible for maintaining the legitimacy and authenticity. Mar 4, 2025 ](/blog/do-esps-get-spf-wrong-what-you-should-know/) ## Fix your SPF record, free Give us a test drive for 30 days at no cost. Fix your broken SPF in less than 60 seconds! [Fix My SPF Record!→](/pricing/) ```json {"@context":"https://schema.org","@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com","logo":{"@type":"ImageObject","url":"https://autospf.com/images/autospf-logo.png"},"description":"Automatic SPF flattening and email authentication management. 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