--- title: MDaemon Simple Secure Email (5) description: Email server and email security insights from MDaemon Technologies, an expert in email server and email gateway software, will help you better manage your company's email system. (5) --- [![MDaemon Technologies](https://blog.mdaemon.com/hs-fs/hubfs/MDaemon-Technologies_logo_large.png?width=564&height=110&name=MDaemon-Technologies_logo_large.png "MDaemon Technologies")](https://mdaemon.com/) - [Blog Home](https://blog.mdaemon.com) # MDaemon Technologies Blog [![](https://blog.mdaemon.com/hubfs/Postmaster-email-address_MDaemon-Email-Server.png)](https://blog.mdaemon.com/why-every-mail-server-needs-a-postmaster-alias) ## [Why Every Email Domain Needs a Postmaster Alias](https://blog.mdaemon.com/why-every-mail-server-needs-a-postmaster-alias) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email Remote Administration](https://blog.mdaemon.com/topic/email-remote-administration), [Email Management](https://blog.mdaemon.com/topic/email-management), [MDaemon Email Server](https://blog.mdaemon.com/topic/mdaemon-email-server), [Email Server](https://blog.mdaemon.com/topic/email-server) [0 Comments](https://blog.mdaemon.com/why-every-mail-server-needs-a-postmaster-alias#comments-listing) If you manage a mail server, having a functional postmaster alias isn't just a best practice—it's a requirement. According to [RFC 2142](https://www.ietf.org/rfc/rfc2142.txt), every email domain must have a working postmaster@yourdomain.com address. But beyond compliance, this simple alias plays a critical role in maintaining healthy email communication and managing server-related issues. [Read More](https://blog.mdaemon.com/why-every-mail-server-needs-a-postmaster-alias) [![](https://blog.mdaemon.com/hubfs/Email-Security-Tips-for-Healthcare.png)](https://blog.mdaemon.com/why-healthcare-organizations-must-strengthen-their-email-security) ## [Why healthcare organizations must strengthen their email security](https://blog.mdaemon.com/why-healthcare-organizations-must-strengthen-their-email-security) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email Security](https://blog.mdaemon.com/topic/email-security), [Security Gateway for Email](https://blog.mdaemon.com/topic/security-gateway-for-email), [Health Care Security](https://blog.mdaemon.com/topic/health-care-security), [SecurityGateway](https://blog.mdaemon.com/topic/securitygateway) [0 Comments](https://blog.mdaemon.com/why-healthcare-organizations-must-strengthen-their-email-security#comments-listing) The numbers are in, and they paint a troubling picture for the healthcare industry. [Read More](https://blog.mdaemon.com/why-healthcare-organizations-must-strengthen-their-email-security) [![](https://blog.mdaemon.com/hubfs/SecurityGateway_Keep-email-private.png)](https://blog.mdaemon.com/why-automating-tls-certificate-renewals-is-more-important-than-ever) ## [Why Automating TLS Certificate Renewals Is More Important Than Ever](https://blog.mdaemon.com/why-automating-tls-certificate-renewals-is-more-important-than-ever) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email Security](https://blog.mdaemon.com/topic/email-security), [Encrypt](https://blog.mdaemon.com/topic/encrypt), [Email Encryption](https://blog.mdaemon.com/topic/email-encryption), [Cybersecurity](https://blog.mdaemon.com/topic/cybersecurity), [ssl](https://blog.mdaemon.com/topic/ssl), [SecurityGateway](https://blog.mdaemon.com/topic/securitygateway) [0 Comments](https://blog.mdaemon.com/why-automating-tls-certificate-renewals-is-more-important-than-ever#comments-listing) TLS (Transport Layer Security) is a cryptographic protocol that allows secure communication over a network. It uses a certificate issued by a trusted CA (certificate authority) to encrypt connections between clients and servers. These certificates must be renewed periodically to ensure continued data privacy. [Read More](https://blog.mdaemon.com/why-automating-tls-certificate-renewals-is-more-important-than-ever) [![](https://blog.mdaemon.com/hubfs/Top-8-MDaemon-Webmail-Productivity-Tips.png)](https://blog.mdaemon.com/top-8-mdaemon-webmail-productivity-tips) ## [Top 8 MDaemon Webmail Productivity Tips](https://blog.mdaemon.com/top-8-mdaemon-webmail-productivity-tips) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [MDaemon Webmail](https://blog.mdaemon.com/topic/mdaemon-webmail) [0 Comments](https://blog.mdaemon.com/top-8-mdaemon-webmail-productivity-tips#comments-listing) MDaemon Webmail includes a variety of productivity tools to make common tasks easier for users. In our latest video, we discuss the following top 8 tools: [Read More](https://blog.mdaemon.com/top-8-mdaemon-webmail-productivity-tips) [![](https://blog.mdaemon.com/hubfs/Receiving-Strange-Emails-from-Yourself-1.png)](https://blog.mdaemon.com/receiving-strange-emails-from-yourself-heres-what-you-need-to-know) ## [Receiving Strange Emails from Yourself? Here’s What You Need to Know](https://blog.mdaemon.com/receiving-strange-emails-from-yourself-heres-what-you-need-to-know) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email Security](https://blog.mdaemon.com/topic/email-security), [Anti-Spoofing](https://blog.mdaemon.com/topic/anti-spoofing), [Email Spoofing](https://blog.mdaemon.com/topic/email-spoofing), [Email Security Best Practices](https://blog.mdaemon.com/topic/email-security-best-practices), [Email Best Practices](https://blog.mdaemon.com/topic/email-best-practices) [0 Comments](https://blog.mdaemon.com/receiving-strange-emails-from-yourself-heres-what-you-need-to-know#comments-listing) It’s alarming to discover that someone is sending emails that appear to come from your email address—especially if you didn’t send them. This situation can make you wonder if your email has been hacked. However, not all suspicious activity means you’ve been compromised. In many cases, your email address may simply be **spoofed**, not hacked. [Read More](https://blog.mdaemon.com/receiving-strange-emails-from-yourself-heres-what-you-need-to-know) [![](https://blog.mdaemon.com/hubfs/Protect-users-from-phishing_MDaemon.png)](https://blog.mdaemon.com/how-to-prevent-phishing-emails-from-reaching-your-mdaemon-end-users) ## [Email Admin Tips: How to Protect MDaemon Users from Phishing](https://blog.mdaemon.com/how-to-prevent-phishing-emails-from-reaching-your-mdaemon-end-users) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email How To](https://blog.mdaemon.com/topic/email-how-to), [Email Security](https://blog.mdaemon.com/topic/email-security), [Phishing](https://blog.mdaemon.com/topic/phishing) [0 Comments](https://blog.mdaemon.com/how-to-prevent-phishing-emails-from-reaching-your-mdaemon-end-users#comments-listing) Phishing continues to be a popular tactic for cybercriminals to infiltrate businesses in an effort to spread ransomware and steal sensitive data. And while the threat landscape continues to evolve, steps can be taken to help mitigate the threat of phishing attacks. [Read More](https://blog.mdaemon.com/how-to-prevent-phishing-emails-from-reaching-your-mdaemon-end-users) [![](https://blog.mdaemon.com/hubfs/MDaemon-Tech-Training-Webinar_TN.png)](https://blog.mdaemon.com/want-to-become-an-mdaemon-guru-watch-our-technical-training-webinar) ## [Want to become an MDaemon guru? Watch our technical training webinar!](https://blog.mdaemon.com/want-to-become-an-mdaemon-guru-watch-our-technical-training-webinar) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email Security](https://blog.mdaemon.com/topic/email-security), [MDaemon Email Server](https://blog.mdaemon.com/topic/mdaemon-email-server), [Training](https://blog.mdaemon.com/topic/training) [0 Comments](https://blog.mdaemon.com/want-to-become-an-mdaemon-guru-watch-our-technical-training-webinar#comments-listing) Are you an MDaemon administrator needing some help understanding certain features? Looking  for email troubleshooting tips & tricks? Well look no further than our MDaemon Technical Training webinar! [Read More](https://blog.mdaemon.com/want-to-become-an-mdaemon-guru-watch-our-technical-training-webinar) [![](https://blog.mdaemon.com/hubfs/MDaemon-Email-Server_Version-25.png)](https://blog.mdaemon.com/introducing-mdaemon-25-with-qr-code-detection-webmail-improvements-and-more) ## [Introducing MDaemon 25 - with QR Code Detection, Webmail Improvements, and More!](https://blog.mdaemon.com/introducing-mdaemon-25-with-qr-code-detection-webmail-improvements-and-more) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [MDaemon Email Server](https://blog.mdaemon.com/topic/mdaemon-email-server), [Product Updates](https://blog.mdaemon.com/topic/product-updates) [0 Comments](https://blog.mdaemon.com/introducing-mdaemon-25-with-qr-code-detection-webmail-improvements-and-more#comments-listing) MDaemon 25 has been released with the following new  features and enhancements. [Read More](https://blog.mdaemon.com/introducing-mdaemon-25-with-qr-code-detection-webmail-improvements-and-more) [![](https://blog.mdaemon.com/hubfs/Microsoft-End-of-Life_MDaemon.jpg)](https://blog.mdaemon.com/microsoft-is-ending-support-for-microsoft-exchange-server-2016-and-2019-now-is-a-perfect-time-to-switch-to-mdaemon-email-server) ## [Microsoft Exchange Server 2016 & 2019 Support has Ended: Now is the Perfect Time to Switch to MDaemon Email Server!](https://blog.mdaemon.com/microsoft-is-ending-support-for-microsoft-exchange-server-2016-and-2019-now-is-a-perfect-time-to-switch-to-mdaemon-email-server) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [MDaemon Email Server](https://blog.mdaemon.com/topic/mdaemon-email-server), [Microsoft 365 Exchange Alternative](https://blog.mdaemon.com/topic/microsoft-365-exchange-alternative) [0 Comments](https://blog.mdaemon.com/microsoft-is-ending-support-for-microsoft-exchange-server-2016-and-2019-now-is-a-perfect-time-to-switch-to-mdaemon-email-server#comments-listing) With Microsoft Exchange Server 2016 and 2019 reaching end of life on October 14, 2025, businesses need to act swiftly to find a reliable and cost-effective alternative. MDaemon Email Server offers an affordable, trusted solution with strong security, easy administration and lower operational costs. [Read More](https://blog.mdaemon.com/microsoft-is-ending-support-for-microsoft-exchange-server-2016-and-2019-now-is-a-perfect-time-to-switch-to-mdaemon-email-server) [![](https://blog.mdaemon.com/hubfs/How-to-require-two-factor-authentication_MDaemon-Webmail_TN.png)](https://blog.mdaemon.com/protect-against-hackers-with-two-factor-authentication-for-mdaemon-webmail) ## [Protect Against Hackers with Two-factor Authentication for MDaemon Webmail](https://blog.mdaemon.com/protect-against-hackers-with-two-factor-authentication-for-mdaemon-webmail) By [Brad Wyro](https://blog.mdaemon.com/author/brad-wyro) posted in [Email Security](https://blog.mdaemon.com/topic/email-security), [Email Security Best Practices](https://blog.mdaemon.com/topic/email-security-best-practices), [Two-Factor Authentication](https://blog.mdaemon.com/topic/two-factor-authentication), [MDaemon Webmail](https://blog.mdaemon.com/topic/mdaemon-webmail), [Passwords](https://blog.mdaemon.com/topic/passwords) [0 Comments](https://blog.mdaemon.com/protect-against-hackers-with-two-factor-authentication-for-mdaemon-webmail#comments-listing) By now you may have heard countless stories of businesses suffering data breaches because a bad actor was able to guess a user's email password. And while I certainly recommend using strong passwords, it's more important than ever that businesses bolster their email security by requiring users to use two-factor authentication. This is especially true as even some of the strongest passwords have been exposed in hacking incidents and [published on the dark web](https://haveibeenpwned.com/). [Read More](https://blog.mdaemon.com/protect-against-hackers-with-two-factor-authentication-for-mdaemon-webmail) [Prev](https://blog.mdaemon.com/page/4) [All posts](https://blog.mdaemon.com/all) [Next](https://blog.mdaemon.com/page/6) [![BACK TO ALL ARTICLES](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/6572702/05b24dbb-70a6-4eaa-9507-321cb27f7228.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/6572702/05b24dbb-70a6-4eaa-9507-321cb27f7228) ### Subscribe to Email Updates - [Popular](https://blog.mdaemon.com/page/5#tab-2) - [Recent](https://blog.mdaemon.com/page/5#tab-1) - [Categories](https://blog.mdaemon.com/page/5#tab-3) ### Lists by Topic - [Email Security (74)](https://blog.mdaemon.com/tag/email-security) - [MDaemon Email Server (49)](https://blog.mdaemon.com/tag/mdaemon-email-server) - [Email How To (41)](https://blog.mdaemon.com/tag/email-how-to) - [Email Best Practices (30)](https://blog.mdaemon.com/tag/email-best-practices) - [Product Updates (29)](https://blog.mdaemon.com/tag/product-updates) - 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[Email Encryption (11)](https://blog.mdaemon.com/tag/email-encryption) - [Anti-Spoofing (10)](https://blog.mdaemon.com/tag/anti-spoofing) - [MDaemon Webmail (10)](https://blog.mdaemon.com/tag/mdaemon-webmail) - [Email Archiving (8)](https://blog.mdaemon.com/tag/email-archiving) - [Email Management (8)](https://blog.mdaemon.com/tag/email-management) - [Email Privacy (8)](https://blog.mdaemon.com/tag/email-privacy) - [Email Spoofing (8)](https://blog.mdaemon.com/tag/email-spoofing) - [Tutorial (8)](https://blog.mdaemon.com/tag/tutorial) - [Business Email Compromise (7)](https://blog.mdaemon.com/tag/business-email-compromise) - [Update (7)](https://blog.mdaemon.com/tag/update) - [Anti-Virus (6)](https://blog.mdaemon.com/tag/anti-virus) - [Collaboration (6)](https://blog.mdaemon.com/tag/collaboration) - [Email Software (6)](https://blog.mdaemon.com/tag/email-software) - [MDaemon (6)](https://blog.mdaemon.com/tag/mdaemon) - [Email Authentication (5)](https://blog.mdaemon.com/tag/email-authentication) - 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[msp (2)](https://blog.mdaemon.com/tag/msp) - [Anti-Relay (1)](https://blog.mdaemon.com/tag/anti-relay) - [BEC (1)](https://blog.mdaemon.com/tag/bec) - [Backscatter (1)](https://blog.mdaemon.com/tag/backscatter) - [Bayesian Learning (1)](https://blog.mdaemon.com/tag/bayesian-learning) - [Content Filter (1)](https://blog.mdaemon.com/tag/content-filter) - [DNS-BL (1)](https://blog.mdaemon.com/tag/dns-bl) - [Disaster Recovery (1)](https://blog.mdaemon.com/tag/disaster-recovery) - [Email Software Reviews (1)](https://blog.mdaemon.com/tag/email-software-reviews) - [Encrypt (1)](https://blog.mdaemon.com/tag/encrypt) - [External Email Threats (1)](https://blog.mdaemon.com/tag/external-email-threats) - [Gateway (1)](https://blog.mdaemon.com/tag/gateway) - [Inbox (1)](https://blog.mdaemon.com/tag/inbox) - [Inbox Zero (1)](https://blog.mdaemon.com/tag/inbox-zero) - [Macros (1)](https://blog.mdaemon.com/tag/macros) - [Monitoring (1)](https://blog.mdaemon.com/tag/monitoring) - [Quarantine (1)](https://blog.mdaemon.com/tag/quarantine) - [RelayFax (1)](https://blog.mdaemon.com/tag/relayfax) - [Software (1)](https://blog.mdaemon.com/tag/software) - [Training (1)](https://blog.mdaemon.com/tag/training) - [Upgrade (1)](https://blog.mdaemon.com/tag/upgrade) - [Web Conferencing (1)](https://blog.mdaemon.com/tag/web-conferencing) - [Windows Server (1)](https://blog.mdaemon.com/tag/windows-server) - [internal email threat (1)](https://blog.mdaemon.com/tag/internal-email-threat) - [ssl (1)](https://blog.mdaemon.com/tag/ssl) - [tax scams (1)](https://blog.mdaemon.com/tag/tax-scams) see all ### Posts by Topic - [Email Security (74)](https://blog.mdaemon.com/tag/email-security) - [MDaemon Email Server (49)](https://blog.mdaemon.com/tag/mdaemon-email-server) - [Email How To (41)](https://blog.mdaemon.com/tag/email-how-to) - [Email Best Practices (30)](https://blog.mdaemon.com/tag/email-best-practices) - [Product Updates (29)](https://blog.mdaemon.com/tag/product-updates) - [Phishing (28)](https://blog.mdaemon.com/tag/phishing) - [Security Gateway for Email (27)](https://blog.mdaemon.com/tag/security-gateway-for-email) - 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[Email Archiving (8)](https://blog.mdaemon.com/tag/email-archiving) - [Email Management (8)](https://blog.mdaemon.com/tag/email-management) - [Email Privacy (8)](https://blog.mdaemon.com/tag/email-privacy) - [Email Spoofing (8)](https://blog.mdaemon.com/tag/email-spoofing) - [Tutorial (8)](https://blog.mdaemon.com/tag/tutorial) - [Business Email Compromise (7)](https://blog.mdaemon.com/tag/business-email-compromise) - [Update (7)](https://blog.mdaemon.com/tag/update) - [Anti-Virus (6)](https://blog.mdaemon.com/tag/anti-virus) - [Collaboration (6)](https://blog.mdaemon.com/tag/collaboration) - [Email Software (6)](https://blog.mdaemon.com/tag/email-software) - [MDaemon (6)](https://blog.mdaemon.com/tag/mdaemon) - [Email Authentication (5)](https://blog.mdaemon.com/tag/email-authentication) - [Email Remote Administration (5)](https://blog.mdaemon.com/tag/email-remote-administration) - [Software update (5)](https://blog.mdaemon.com/tag/software-update) - [Compliance (4)](https://blog.mdaemon.com/tag/compliance) - [MailStore Archive Server (4)](https://blog.mdaemon.com/tag/mailstore-archive-server) - [Microsoft 365 Exchange Alternative (4)](https://blog.mdaemon.com/tag/microsoft-365-exchange-alternative) - [Passwords (4)](https://blog.mdaemon.com/tag/passwords) - [Archive (3)](https://blog.mdaemon.com/tag/archive) - [Troubleshooting (3)](https://blog.mdaemon.com/tag/troubleshooting) - [Attachments (2)](https://blog.mdaemon.com/tag/attachments) - [Business Email (2)](https://blog.mdaemon.com/tag/business-email) - [Cloud (2)](https://blog.mdaemon.com/tag/cloud) - [DMARC (2)](https://blog.mdaemon.com/tag/dmarc) - [Email Collaboration (2)](https://blog.mdaemon.com/tag/email-collaboration) - [Industry Insight (2)](https://blog.mdaemon.com/tag/industry-insight) - [insider threats (2)](https://blog.mdaemon.com/tag/insider-threats) - [msp (2)](https://blog.mdaemon.com/tag/msp) - [Anti-Relay (1)](https://blog.mdaemon.com/tag/anti-relay) - [BEC (1)](https://blog.mdaemon.com/tag/bec) - [Backscatter (1)](https://blog.mdaemon.com/tag/backscatter) - [Bayesian Learning (1)](https://blog.mdaemon.com/tag/bayesian-learning) - [Content Filter (1)](https://blog.mdaemon.com/tag/content-filter) - [DNS-BL (1)](https://blog.mdaemon.com/tag/dns-bl) - [Disaster Recovery (1)](https://blog.mdaemon.com/tag/disaster-recovery) - [Email Software Reviews (1)](https://blog.mdaemon.com/tag/email-software-reviews) - [Encrypt (1)](https://blog.mdaemon.com/tag/encrypt) - [External Email Threats (1)](https://blog.mdaemon.com/tag/external-email-threats) - [Gateway (1)](https://blog.mdaemon.com/tag/gateway) - [Inbox (1)](https://blog.mdaemon.com/tag/inbox) - [Inbox Zero (1)](https://blog.mdaemon.com/tag/inbox-zero) - [Macros (1)](https://blog.mdaemon.com/tag/macros) - [Monitoring (1)](https://blog.mdaemon.com/tag/monitoring) - [Quarantine (1)](https://blog.mdaemon.com/tag/quarantine) - [RelayFax (1)](https://blog.mdaemon.com/tag/relayfax) - [Software (1)](https://blog.mdaemon.com/tag/software) - [Training (1)](https://blog.mdaemon.com/tag/training) - [Upgrade (1)](https://blog.mdaemon.com/tag/upgrade) - [Web Conferencing (1)](https://blog.mdaemon.com/tag/web-conferencing) - [Windows Server (1)](https://blog.mdaemon.com/tag/windows-server) - [internal email threat (1)](https://blog.mdaemon.com/tag/internal-email-threat) - [ssl (1)](https://blog.mdaemon.com/tag/ssl) - [tax scams (1)](https://blog.mdaemon.com/tag/tax-scams) See all #### About MDaemon Technologies MDaemon Technologies is a pioneer in developing email and email security software helping to protect customers from evolving cyber-security threats. Its products and services are trusted by thousands of organizations in over 140 countries. For more than two decades, the company’s products have been developed with the ongoing input of IT professionals who demand reliable, affordable software that requires minimal effort to manage. The software can be deployed in virtual, hosted cloud, on-premises, or hybrid network environments. The company sells its software and services directly and through a network of global channel partners. For more information, visit [www.mdaemon.com](https://www.altn.com/). Copyright © 1996-2026 MDaemon Technologies.  View [privacy policy](https://mdaemon.com/policies/privacy-policy).   ###### Contact Us +1.817-601-3222 [sales@help.mdaemon.com](mailto:sales@help.mdaemon.com) 6340 Lake Worth Blvd. Fort Worth, TX 76135