Hi, Is there a way to block spam messages like this? Probably "receiver=<UNKNOWN>" spf param might be the clue.
postfix/smtpd[15571]: connect from a.benient.com[198.144.154.163] postfix/smtpd[15571]: Anonymous TLS connection established from a.benient.com[198.144.154.163]: TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits) policyd-spf[15576]: prepend Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=198.144.154.163; helo=a.benient.com; envelope-from=qbc...@benient.com; receiver=<UNKNOWN> postfix/smtpd[15571]: A08363F55C: client=a.benient.com[198.144.154.163] postfix/cleanup[15578]: A08363F55C: message-id=<F5ABB69D843DC3327E28B32E1F199882@twk> opendkim[690]: A08363F55C: s=benient d=benient.com SSL postfix/qmgr[24766]: A08363F55C: from=<qbc...@benient.com>, size=18601, nrcpt=1 (queue active) Thanks! <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Без вирусов. www.avast.ru <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
