E-mail is rejected because server is on spamcop or another black list.

A bounce message indicating that Qwknet is on Spamcop or some other blacklist means that someone was sending spam from the shared mail server you are on. This is an issue we have several measures in place to avoid and is something we monitor multiple times per day.

QWK.Net does not tolerate spam originating from its servers. Some users install scripts with security holes, most commonly old versions of FormMail. These can be hijacked by spammers to send spam without a users knowledge. We can only react to these instances by shutting down the broken script as soon as possible. This may be done by suspending a hosting account, or if it's coming from a specific e-mail we may just suspend that e-mail account. However, some systems will still add the originating QWK.Net server to black lists, even though the spam is not actually condoned by QWK.Net.

The only resolution to this is for us to stop the spam as mentioned above and request de-listing. This can take anywhere from 1 hour to 48 hours. Alternatively we encourage people to be very selective about choosing which black lists to use, and to be aware that they could be losing legitimate mail.

If your account or e-mail has been suspended for spam follow the instructions given here: https://customers.qwk.net/dp/kb_article.php?ref=3044-WYAJ-6940