Symantec Blocking Entire IP Ranges But No Spam

I own a small hosting comapny and I have noticed that our sending ip is constantly being blacklisted at http://ipremoval.sms.symantec.com

Apparently because of a showshoe attack. We are extremely strict on our mail policies and monitor all of the major RBL, mail is throttled and we react instantly on any spam report which is very rare.

I have investigated thoroughly and there is no spam coming from our sending IP, in fact there is less than a few 100 e-mails a day most times, and those do not contain anything malicious. Now upon further investigation I see that all the IPs in the range are also being blacklisted. Many of these IPs are not even active and CANNOT be used to send anything at all, the ones that are active are not used for mail.

I have tried to contact Symantec direct over the phone about this but I just go around in circles, nobody knows where to send me or how to answer me.

I hope there is somebody here who can put me in touch with the correct people. If Symantec insists on listing my IPs than I would like some further information if possible such as offending sender address and time.

I have just went through and asked for all these IPs to be unblocked again.

IPs

Thanks,

Chuck