BLQ is a Perl script that can query multiple lists, including MAPS RBL and MAPS DUL.
One nice thing about blq is that it's flexible enough to handle multiple lists simultaneously. This means that you don't have to rely on just one source of information when trying to determine whether a given host is trustworthy or not. And because blq is written in Perl, it's easy to customize and extend as needed.
Recently, a new release of blq was made available, featuring several updates and improvements. Among these was the addition of new tags such as dsbl, dsbl-list, dsbl-multihop, and dsbl-unconfirmed. These new tags help to expand the range of potential sources that blq can query, making it even more effective at identifying email abuse.
Overall, if you're looking for a simple yet effective tool for monitoring email traffic and keeping spam at bay, blq is definitely worth considering. With its ability to check multiple lists and its flexible, customizable design, it's a powerful addition to any email security toolkit.
Version 1.23: N/A