Does anyone know how to contact Spectrum postmaster or can they contact me off 
list?  I've tried postmaster@spectrum and 
unbl...@charter.com<mailto:unbl...@charter.com> and neither appears to be 
functioning.  We have a client getting the following bounce error, which seems 
a little backwards:
"This email account has been blocked from sending emails due to suspicious 
activity. Blocks will expire based on the nature of the activity. If you're a 
Spectrum customer, change all of your Spectrum passwords to secure your account 
and then contact us<https://www.spectrum.net/contact-us/>."

They are using their own sending domain, not a Spectrum one, so there's no 
Spectrum account sending.  We're not showing any complaints and they're on a 
dedicated IP.  It's mostly *.rr.com we're getting these bounces on.

Thanks,
Rob

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