Email Authentication

heraldcorp.com

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 ip4:211.54.34.1 ip4:211.54.34.2 ip4:211.54.34.18 ip4:211.54.34.23 ip4:211.54.34.29 ip4:211.54.34.30 ip4:211.54.35.118 ip4:223.130.132.228  include:spf.tmes.trendmicro.com ~all

DKIM

none

Cryptographic signature on outbound mail (selector: none).

No record published.

DMARC

none

Tells receivers what to do with mail that fails SPF/DKIM.

No record published.

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