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On-Prem, Open-Source, security, email, antivirus, mime

Digging MIME

One of the common requests we get is about examining the message by parts to perform security checks, redact private...
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security, Deliverability

Protect Your Deliverability With An Abuse Page

When you operate a multi tenant sending environment compliance is a major portion of your operations, and yet on...
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MTA, On-Prem, KumoMTA, Open-Source, Lua, Rust, security

Using LetsEncrypt with KumoMTA

Handling email over TLS-encrypted connections has become the default, and KumoMTA supports TLS for all messages in and...
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MTA, On-Prem, KumoMTA, Open-Source, security, SMTP

Defending Against SMTP Smuggling with KumoMTA

What is SMTP Smuggling? On September 18th there was a new exploit published regarding SMTP Smuggling, which you can...
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MTA, On-Prem, KumoMTA, Open-Source, momentum, powermta, pmta, DKIM, security

Lets talk about security for a minute

Email has evolved considerably in the last decade, but modernization efforts at the server level have lagged behind...
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