Does DOS Waffle support control messages ?
Other than cancelling a message you posted that hasn’t been batched up yet, no. You might want to look at the contents of the control newsgroup once in a while to see what control messages you received that Waffle didn’t process. There’s a program called procc, `PROCess Control’ which will handle control messages for you. Look for procc-NN.zip where NN is the version number. There’s also wafctl, Waffle Control, which does more than procc. It will create files for nwreader to use to present users with notices of new groups when the control messages come in.