Email Authentication
tom.com
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:spf.tom.com -all
DKIM
noneCryptographic signature on outbound mail (selector: none).
No record published.
DMARC
warningTells receivers what to do with mail that fails SPF/DKIM. Policy: none.
v=DMARC1; p=none; rua=mailto:dmarc@tom.com
Mail Servers (MX)
10 tommx.tom.com