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math.mit.edu.		30 IN TXT "v=DMARC1; p=none; rua=mailto:postmaster@math.mit.edu"
math.mit.edu.		30 IN TXT
"google-site-verification=WVcqSVmb5kzPN6uLhwF6qUjeGohtkFrYEK4mvlfswQ8"
math.mit.edu.		30 IN TXT "v=spf1 ip4:18.1.37.0/24 ip4:18.18.21.0/24 ip4:18.4.43.0/24
ip4:18.41.0.0/16 include:_spf.google.com mx -all"

math.mit.edu.		30 IN A	18.1.37.34

Mail exchangers:
math.mit.edu.		30 IN MX 100 heaviside.mit.edu.

        
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