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Lookups
0
Issues
38
IPv4 addresses
0
IPv6 addresses
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
or else
a:
viettel.vn
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
or else
ip4:
203.113.188.0 / 27
pass
if the sender's IP is between
203.113.188.0 and 203.113.188.31 (inclusive).
203.113.188.0 and 203.113.188.31 (inclusive).
Viettel Group
AS7552
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 a mx a:viettel.vn ip4:203.113.188.0/27 ~all