We have just added blacklist-check to our service. This means that we check over 100 lists on the Internet and search for your mailserver.
Normally, you will not detect that you are on a blacklist. Most mailservers would just drop the connection and don’t let anyone know. With our service, you can be alerted by SMS/text-message and/or e-mail when it occour and you can get your IP-whitelisted far sooner.
