Email security & deliverability · grade A
v=spf1 a:relay1.studwork.ru a:relay2.studwork.ru a:relay3.studwork.ru a:relay11.studwork.org ip4:94.26.245.114 ip4:185.91.54.203 ip4:188.72.108.199 ip4:185.10.187.138 ip4:46.243.143.128 include:_spf.mail.ru ip4:45.94.123.177 ~all