httptest

utilities

Install

All systems
curl cmd.cat/httptest.sh
Debian Debian
apt-get install dsbltesters
Ubuntu
apt-get install dsbltesters
CentOS
yum install cyrus-imapd-utils
Fedora
dnf install cyrus-imapd-utils
Windows (WSL2)
sudo apt-get update sudo apt-get install dsbltesters
Raspbian
apt-get install dsbltesters

cyrus-imapd-utils

utilities

dsbltesters

open proxy/relay testing utilities

This package contains testing software configured to work with the DSBL (http://dsbl.org/) or DSBL-compliant services. It enables you to send tests to servers based on spam that you receive. If those tests succeed, the results will reach the DSBL host in question, and the relay will be listed. Note: the original DSBL service has gone, it's not possible to submit nor place a query there.