mx.musvc.com SPF record

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2,048 IPv4 addresses
0 IPv6 addresses
v=spf1 ip4:93.174.64.0/21 ~all Copied

Terms

ip4:
93.174.64.0 / 21
pass if the sender's IP is between
93.174.64.0 and 93.174.71.255 (inclusive).
Microsoft
AS8075
or else
~all
soft fail the email's SPF check.

Included records

v=spf1 ip4:93.174.64.0/21 ~all

IP ranges

93.174.64.0 / 21
Microsoft
AS8075