please how i can block this knocking on the door*, try with this
example.....
*
*postscreen_access_list = permit_mynetworks,
hash:/etc/postfix/senderdomain,
hash:/etc/postfix/whitelistIP,
cidr:/etc/postfix/whitelistCIDR*
*
*
*cat ***/etc/postfix/whitelistIP**
**192.146.215.104 PERMIT
# Rejects
143.204.98.70 REJECT # Amazonses
**
*Oct - 10:19:07 mail postfix/smtps/smtpd[21759]: warning:
unknown[212.70.149.71]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Oct - 10:19:08 mail postfix/smtps/smtpd[21759]: lost connection after
AUTH from unknown[212.70.149.71]
Oct - 10:19:08 mail postfix/smtps/smtpd[21759]: disconnect from
unknown[212.70.149.71] ehlo=1 auth=0/1 rset=1 commands=2/3
Oct - 10:20:05 mail postfix/smtps/smtpd[21759]: connect from
unknown[212.70.149.71]
Oct - 10:20:08 mail postfix/smtps/smtpd[21759]: Anonymous TLS connection
established from unknown[212.70.149.71]: TLSv1.2 with cipher
ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
but without success*
*Thanks*
**