Email Authentication
techinsider.ru
SPF
passDeclares which servers may send mail for this domain.
v=spf1 mx a:slcloud.ru a:post.imedia.ru ip4:185.58.223.162/31 include:spf.protection.outlook.com -all
DKIM
noneCryptographic signature on outbound mail (selector: none).
No record published.
DMARC
noneTells receivers what to do with mail that fails SPF/DKIM.
No record published.
Mail Servers (MX)
10 mx10.techinsider.ru