Need 3M System Admin contact

Dear NANOG,

Anyone know how to contact responsible mail admin for 3M corp? The whois contact
number 651-736-7182 rings to the legal department who are on holiday til Tuesday
and 651-733-8122 just infinite rings. The 3M corp (spock.mmm.com) is blocking a
domain which I admin for, and even emailing them as postmaster is being bounced.

Thanks!

Try: Robert Brandt (RB1949-ARIN) +1-651-737-7694 [bbbrandt@mmm.com]

Or Polaris Telecom [hostmaster@onvoy.com] +1-612-230-4167
(as they secondary the DNS for mmm.com - they should have contacts)