Google
Domain verification
google-site-verification=EPqqi27dlnsbw9NHpptDd2W6PmOoRdsfmxY_pzEQIh4
Mail.ru
Domain verification
mailru-verification: ffb0a106da43c2ac
Yandex
Domain verification
yandex-verification: 724506151ce54e46
Question and response
Question
dig mx3.PREXMAIL.RU. TXT
Answer
mx3.PREXMAIL.RU. 86400 TXT "yandex-verification: 724506151ce54e46"
mx3.PREXMAIL.RU. 86400 TXT "v=spf1 include:spf.prexmail.ru ~all"
mx3.PREXMAIL.RU. 86400 TXT "google-site-verification=EPqqi27dlnsbw9NHpptDd2W6PmOoRdsfmxY_pzEQIh4"
mx3.PREXMAIL.RU. 86400 TXT "mailru-verification: ffb0a106da43c2ac"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0