← Email Infrastructure Comparisons 2027 Carrier-Grade Security • Enterprise Gateway Showdown Cisco Secure Email vs FortiMail: 2027 Carrier-Grade Gateways, Talos Intelligence & Security Fabric Published by Fred Dawson • Senior Deliverability Systems Architect • 19 min read In high-throughput enterprise datacenters and tier-1 ISP networks, generic virtual appliances fail to handle concurrent TCP connection volumes […]
← Email Infrastructure Comparisons 2027 Postfix Pipeline Benchmark • Mail Filtering Architecture MailScanner vs Amavisd-new: 2027 Queue Spool Directory Inspection vs In-Band SMTP/LMTP Filtering Published by Fred Dawson • Senior Deliverability Systems Architect • 17 min read When integrating virus and spam scanning into Unix MTAs like Postfix or Sendmail, system architects must choose between […]
← Email Infrastructure Comparisons 2027 Security Gateway Benchmark • Inbound & Outbound Defense Proxmox Mail Gateway vs Barracuda: 2027 Open-Source Enterprise Cluster vs Commercial Appliance Published by Fred Dawson • Senior Deliverability Systems Architect • 18 min read Deploying an enterprise mail security gateway before email reaches downstream mailboxes (Microsoft 365, Google Workspace, or on-premise […]
← Email Infrastructure Comparisons 2027 Antispam Benchmark • In-Line Milter Engines Rspamd vs SpamAssassin: 2027 Event-Driven C/Lua Engine vs Legacy Perl Milter Architecture Published by Fred Dawson • Senior Deliverability Systems Architect • 19 min read For over two decades, Apache SpamAssassin has served as the de facto open-source standard for mail filtering. However, as […]
← Email Infrastructure Comparisons 2027 Infrastructure Benchmark • Virtualization vs Bare Metal VPS vs Dedicated Server for Email: 2027 Virtualization Latency, Disk Spool IOPS & Reputation Isolation Published by Fred Dawson • Senior Deliverability Systems Architect • 20 min read The foundational architectural decision when building an independent email delivery system is whether to run […]
← Email Infrastructure Comparisons 2027 Infrastructure Benchmark • Developer Cloud vs Enterprise Hyperscaler DigitalOcean vs AWS for Email Infrastructure: 2027 Simplicity, Egress Taxes & Enterprise Scale Published by Fred Dawson • Senior Deliverability Systems Architect • 18 min read Choosing between DigitalOcean and Amazon Web Services (AWS) for email infrastructure represents a classic software engineering […]
← Email Infrastructure Comparisons 2027 Infrastructure Benchmark • Developer Cloud VPS Showdown Linode vs DigitalOcean for Email Servers: 2027 Port 25 Policies, Floating IPs & Reverse DNS Published by Fred Dawson • Senior Deliverability Systems Architect • 17 min read Developer cloud providers like Linode (Akamai Connected Cloud) and DigitalOcean Droplets are the natural starting […]
← Email Infrastructure Comparisons 2027 Infrastructure Benchmark • European Bare-Metal MTAs OVHcloud vs Hetzner Email Servers: 2027 Antispam Policies, Anti-DDoS & IP Subnet Economics Published by Fred Dawson • Senior Deliverability Systems Architect • 18 min read When engineering dedicated bare-metal email infrastructure in Europe, the two dominant hosting providers are OVHcloud (France, Canada, Germany) […]
← Email Infrastructure Comparisons 2027 Infrastructure Benchmark • Cloud vs Bare-Metal Hosting Hetzner vs AWS for Email Servers: 2027 Bare Metal vs Cloud Egress Economics & Deliverability Published by Fred Dawson • Senior Deliverability Systems Architect • 19 min read Architecting an enterprise email delivery pipeline requires deciding between two diametrically opposed hosting paradigms: hyperscaler […]
← Email Infrastructure Comparisons 2027 Corporate Email Benchmark • Cloud Mailbox Architectures Google Workspace vs Microsoft 365 Email: 2027 Antispam Gateways, Sending Limits & Outreach Reality Published by Fred Dawson • Senior Deliverability Systems Architect • 17 min read The global enterprise mailbox infrastructure is an effective duopoly: Google Workspace (Gmail) and Microsoft 365 (Exchange […]