We are discontinuing Mail Hosting Services and ContinuityEmail effective September 30, 2025. After nearly 20 years of providing email hosting, we’re ending these services to focus on areas where we can better serve modern business needs: email authentication, DMARC implementation, and deliverability solutions. Customers have four months to transition to providers like Google Workspace, Microsoft 365, or other platforms that offer the integrated business tools today’s companies require.
When Mail Hosting Services was launched in June 2005, the digital landscape looked vastly different. Social media was in its infancy, smartphones were still called “PDAs,” and email was the undisputed king of digital communication. Twenty years later, as we announce the end-of-life for our email hosting services, we can’t help but reflect on the incredible journey email has taken—and the rumors of its demise that never quite materialized.
As a business owner, you probably send emails almost every day, whether they are marketing emails, order confirmations, important instructions, or even internal updates. These emails are essentially an extension of your brand’s identity, and we’re sure that the last thing you want is to taint it or for someone to mess with it.
WebRTC powers your everyday video calls, chats, and real-time data sharing. By eliminating the need for central servers, it reduces response times for communication. However, these direct connections can expose your actual IP address, even if you use a VPN or proxy. WebRTC leaks can reveal your identity and location, undermining your privacy and security online.
From hidden backdoors on GitHub to fake Fastlane plugins hijacking social media bots, this week’s cyber updates spotlight how trust in familiar tools is being silently exploited. Major brands like The North Face and Cartier are also dealing with breaches, and U.S. agencies face urgent patch deadlines due to active vulnerabilities. Let’s take a closer look!
Why transactional emails should always be DKIM-signed
by DuoCircle
Not every email that you send is important, but transactional emails— the ones that confirm your payments, send shipping updates, or reset your password—are especially critical. That’s not just because they carry important information, but also because your users need to act on it quickly.
When it comes to managing your email communication, ensuring that your messages land in the right inbox can feel a lot like navigating a minefield. One misstep, and your carefully crafted emails could end up getting sidestepped—or worse, flagged as spam! A core part of this journey involves understanding and configuring SPF records, which serve as gatekeepers for your domain’s email integrity.
FIDO2: A guide to securing your accounts beyond passwords
by DuoCircle
We’ve all been there— forgotten passwords, set ones that were too simple to be hacked, or used the same passwords across all accounts. But ideally, your priority should be security, not convenience.
We’re back with the week’s cybersecurity round-up of a mix of high-stakes breaches, targeted malware campaigns, and growing concerns around supply chain vulnerabilities. Each of these incidents highlights different tactics attackers are using to exploit trust, access, and visibility. Read on for all the details.
Email is a cornerstone of communication, but imagine sending a message that never arrives or worse, ends up in someone’s spam folder. Frustrating, right? That’s where SPF records come into play. They help email servers decide whether the emails they receive are from someone who’s actually allowed to send them. You might think creating an SPF record sounds complicated, but it’s simpler than you might expect. It’s all about making sure the right people can send messages on your behalf while keeping the unwanted ones at bay. This guide will walk you through setting up your own SPF record step by step, ensuring your emails get where they need to go—without any hiccups along the way!
DKIM replay attacks: Why not all emails should be signed
by DuoCircle
Attackers often outsmart the cybersecurity custodians, and a DKIM replay attack is one such technique exploited by them to sign, seal, and send fraudulent emails using a valid DKIM signature.
![GitHub Backdoor Threat, Cartier Data Breach, Fake RubyGems Steal – Cybersecurity News [June 02, 2025]](https://www.duocircle.com/wp-content/uploads/2025/06/email-smtp-service-0905.jpg)
![Cetus Protocol Breach, DragonForce Supply Attack, MATLAB Ransomware Disruption – Cybersecurity News [May 26, 2025]](https://www.duocircle.com/wp-content/uploads/2025/06/windows-smtp-service-8906.jpg)
