All
security 61
tips 57
how-to 48
privacy 42
technology 37
email management 31
spam 27
business 23
domains 17
phishing 16
aliases 15
comparison 15
deliverability 14
email authentication 10
behind the scenes 9
productivity 9
newsletters 6
product 6
setup guide 6
api 5
developer 5
threats 5
troubleshooting 5
relay 4
ai 3
automation 2
filters 2
How Email Relay Keeps You Online During Provider Outages
When your mail server goes down, email does not stop coming. Without a relay, those messages bounce permanently. With one, they queue and wait.
What Is Email Relay and How Does It Protect Your Business?
Email relay sits between the internet and your mail server, filtering threats before delivery. How it works, when you need it, and how it differs from aliases.
Why We Built Relay: The Problem with Traditional MX Gateways
Traditional email gateways treat every address the same. Relay was designed from scratch with per-address control, SRS forwarding, and crowd-sourced reputation.
What Is a Mail Relay and How Does It Work
A beginner-friendly explanation of mail relays - what they are, why they exist, how they fit into the SMTP chain, and the different types of relays used in modern email infrastructure. Understand the technology that sits between the internet and your mailbox.
