Tag: mailserver

Greylisting – fight Spam with Postgrey and Postfix on Debian and Ubuntu

Source: Greylisting – fight Spam with Postgrey and Postfix on Debian and Ubuntu

Postfix Monitoring With Mailgraph And pflogsumm On Debian Lenny

Source: Postfix Monitoring With Mailgraph And pflogsumm On Debian Lenny

how to inspect remote SMTP server TLS certificate

openssl s_client -connect host.domain.de:25 -starttls smtp | openssl x509 -text

echo | openssl s_client -connect mx1.wiretrip.de:25 -starttls smtp | openssl x509 -dates

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