Not sending e-mails to a specific domain

Hello everyboy, I am currently facing sending issues when sending e-mails to a specific domain, exactly state.gov domain name. The exim main log errors are as below: " 020-09-18 12:19:44 1kJDUU-00007b-SW H=stimson.state.gov [169.252.4.132]: DANE error: tlsa lookup DEFER 2020-09-18 12:19:44 1kJDUU-00007b-SW H=stimson.state.gov [169.252.4.133]: DANE error: tlsa lookup DEFER 2020-09-18 12:19:44 1kJDUU-00007b-SW H=stimson.state.gov [169.252.4.131]: DANE error: tlsa lookup DEFER 2020-09-18 12:19:44 1kJDUU-00007b-SW H=christopher-ew.state.gov [169.253.162.11]: DANE error: tlsa lookup DEFER 2020-09-18 12:19:44 1kJDUU-00007b-SW H=christopher-ew.state.gov [169.253.162.12]: DANE error: tlsa lookup DEFER 2020-09-18 12:19:44 1kJDUU-00007b-SW == pdgrantstirana@state.gov R=dkim_lookuphost T=dkim_remote_smtp defer (-36): DANE error: tlsa lookup DEFER 2020-09-18 12:19:52 1kJDUU-00007b-SW => albinashehu@gmail.com R=dkim_lookuphost T=dkim_remote_smtp H=gmail-smtp-in.l.google.com [64.233.167.27] " Can someone help me, what is the root cause of this problem ? BR, Ilir