Turn Raw Email Guard Logs Into a Clear Security Report
For email administrators and security engineers who need to inspect SMTP gateway logs fast. Paste your mail gateway log and instantly see which senders were blocked, which messages were delivered, and why — no scripts, no setup, no data leaves your browser.
Results update live as you type — no button needed. The Example button fills a sample input.
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Why use Email Guard MCP Converter?
Instantly parses Postfix, Sendmail, and generic SMTP gateway log lines
Highlights blocked senders, DNSBL rejections, and delivery outcomes
Groups results by sender, recipient, queue ID, and status
Explains rejection codes like 554 5.7.1 in plain language
Runs fully client-side — your logs never leave your browser
FAQ
What log formats are supported?
The analyzer works with common SMTP gateway logs, including Postfix, Sendmail, and Exim-style lines that contain connect, reject, client, from, to, status, and relay fields.
Does it store or send my logs anywhere?
No. All parsing happens locally in your browser. Your log data is never uploaded, stored, or shared.
Can it tell me why a message was blocked?
Yes. It extracts rejection codes and DNSBL references, such as 554 5.7.1 blocked using dnsbl.example.net, so you can see the exact reason a sender was denied.
Is this a replacement for my email security gateway?
No. It is a diagnostic converter that helps you read and summarize gateway logs faster. It does not filter, block, or deliver email.