Hosting Ukraine has zero tolerance for sending spam. Spam includes all mailings that we have noticed, even if the sender does not consider them to be spam. Why do we have such an attitude towards spam? Everything is very simple. Everyone can suffer because of one client who sends the mailing. Therefore, blocking one client who sends out a large amount of "useful information" is easier than explaining to a million clients why their emails are not being delivered. Therefore, we reserve the right to block any mailing list without notice.