The response:
Code: Select all
<registration@themanaworld.org>: host mx.yandex.net[77.88.21.249] said: 554
5.7.1 [1] Message rejected under suspicion of SPAM; https://ya.cc/1IrBc
I am not using a "one-shot" or "time-limited" service; I'm using a standard e-mail provider.