Packetizer

Spam Control Information

Due to the volume of spam received by Packetizer's servers, it became necessary to block the IP addresses of known spam organizations and IP addresses that have been known to transmit spam. Sometimes, though, good IP addresses get misclassified and that may be why you are visiting this page. We apologize for the inconvenience this might cause you when trying to reach Packetizer or one of Packetizer's affiliates.

If you received a message indicating that your IP address was blocked, then we have received at least one spam message from your mail server's IP address within the given timeframe over which we keep such records on file. Those error message look like this:

553 5.3.0 ... Your IP address [192.168.24.15] is blocked by our spam filter. Please refer to https://www.packetizer.net/spamcontrol/?addr=192.168.24.15

In the above example, the IP address of the mail server that has been blocked is the address appearing in brackets.

To check whether your mail server's address is blocked, enter its address here and click 'Submit':

In order to remove your mail server's IP address from the block list, please contact us by telephone, forward your error message to abuse@packetizer.com, or send an e-mail from a different account. If you are legitimately trying to reach Packetizer or one of Packetizer's affiliates, or if you are trying to send e-mail to one of the mailing lists operated by Packetizer or its affiliates to which you are subscribed, we will promptly remove your mail server's IP address from the list of blocked addresses. Please provide us with the IP address of the mail server reported in the error message.