Use rblchecker to check whether your outgoing mail IP addresses are listed on RBLs.
The following checkers are supported:
- DNS
-
- Every host in the config is checked.
- Microsoft SNDS
-
- Not only blacklisted IPs, but also IPs with a 'special' status are returned. See 'IP status' on https://sendersupport.olc.protection.outlook.com/snds/FAQ.aspx
Run the following command to install the package from PyPI:
pip3 install rblchecker
Run the following commands to build a Debian package:
mk-build-deps -i -t 'apt -o Debug::pkgProblemResolver=yes --no-install-recommends -y'
dpkg-buildpackage -us -uc
Find an example config in config.yml.
Run all checkers:
rblchecker --config-path=...
Example output:
(DNS) IP address 198.51.100.100 is listed on access.redhawk.org (100.100.51.198.access.redhawk.org -> 127.0.0.0)
(SNDS) IP address 198.51.100.100 is listed on SNDS (reason: 'Junked due to user complaints or other evidence of spamming')
If there's any listings, the command exits with a non-zero RC.