Проверка DKIM-записи домена

DNS-запись mail._domainkey.tdhc.ru с типом TXT опубликована:
v=DKIM1; k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArhrQ5LkgdEqdNYXcDOwf
Lv1AQNxMd7suQH+2Mr0qSb3kJ94A59HG0X9oqVZ0lS34NBMx8cIBlVTZCkqmTFyD
G8XLKPGM+ReuwMLYUYoE0+Yn8oxu0UysZ8n+l9V8aX+mjZsj7qEWomKjlw36sUeX
OOB/+ynDeY+2quT/AhJ464vFcOTclvyhRFJYdqTk/vGx39e0Tnyz/IgVr/9a6a6g
1kTchFkiM56MMAe/O64I5RWrQ8Nnqm33F3qGZ6Wv9YOB0b34oysMf6K5+f/O3Vup
HTgrlnTHAZUw54YuviZ0veaAlMutdpLRBACyv/9fIPmy+BFUJokY9HDsTasE36f+
HQIDAQAB