Let's Debug

Test result for mail.enhim.ru using http-01

NoRecords
Fatal
No valid A or AAAA records could be ultimately resolved for mail.enhim.ru. This means that Let's Encrypt would not be able to to connect to your domain to perform HTTP validation, since it would not know where to connect to.
No A or AAAA records found.
PublicSuffix
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for mail.enhim.ru is: ru
StatusIO
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Nov 16 08:51:17 2018. Sat in queue for 1ms. Completed in 4s. Hide verbose information.