mxbacks.mail.yandex.net	  smtp:mxbacks.mail.yandex.net
yabacks.yandex.ru	  smtp:yabacks.yandex.ru
services.mail.yandex.net  smtp:services.mail.yandex.net
mxbacks.yandex-team.ru	  smtp:mxbacks.yandex-team.ru

devnull@yandex.ru       discard: drop recipient
devnull@yandex.ua       discard: drop recipient
devnull@yandex.by       discard: drop recipient
devnull@yandex.kz       discard: drop recipient
devnull@yandex.com      discard: drop recipient
devnull@yandex.com.tr   discard: drop recipient
devnull@yandex-team.ru  discard: drop recipient
devnull@ya.ru           discard: drop recipient

lastmail.co error: not allowed
