Just now i sent a mail to bin-drai domain from a blocked email manesh@saturnme.com, please find the below log and give a solution to rectify the issue ASAP.
Jul 13 10:30:53 proxmox postfix/smtpd[2339559]: connect from mail-ot1-f43.google.com[209.85.210.43]
Jul 13 10:30:54 proxmox postfix/smtpd[2339559]: 88368101259: client=mail-ot1-f43.google.com[209.85.210.43]
Jul 13 10:30:54 proxmox postfix/cleanup[2339529]: 88368101259: message-id=<CAGpFaXUMQGg33x9YTovs=-VEg+QUo3TrYv8__76fTMKKMjso0g@mail.gmail.com>
Jul 13 10:30:54 proxmox postfix/qmgr[2334457]: 88368101259: from=<manesh@saturnme.com>, size=3550, nrcpt=1 (queue active)
Jul 13 10:30:54 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: new mail message-id=<CAGpFaXUMQGg33x9YTovs=-VEg+QUo3TrYv8__76fTMKKMjso0g@mail.gmail.com>#012
Jul 13 10:30:54 proxmox postfix/smtpd[2339559]: disconnect from mail-ot1-f43.google.com[209.85.210.43] ehlo=1 mail=1 rcpt=1 bdat=1 quit=1 commands=5
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: SA score=0/5 time=1.380 bayes=0.49 autolearn=ham autolearn_force=no hits=AWL(-0.995),BAYES_50(0.8),DKIM_SIGNED(0.1),DKIM_VALID(-0.1),DKIM_VALID_AU(-0.1),DKIM_VALID_EF(-0.1),HTML_MESSAGE(0.001),RCVD_IN_DNSWL_NONE(-0.0001),RCVD_IN_MSPIKE_H3(0.001),RCVD_IN_MSPIKE_WL(0.001),SPF_HELO_NONE(0.001),SPF_PASS(-0.001),T_SCC_BODY_TEXT_LINE(-0.01)
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: notify <manesh@saturnme.com> (rule: Blacklist, 20D181012CD)
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: block mail to <bvy@bin-drai.com> (rule: Blacklist)
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: processing time: 1.575 seconds (1.38, 0.085, 0)
Jul 13 10:30:56 proxmox postfix/lmtp[2339530]: 88368101259: to=<bvy@bin-drai.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.9, delays=0.25/0/0.05/1.6, dsn=2.7.0, status=sent (250 2.7.0 BLOCKED (1012B564AF9A1E94420))
Jul 13 10:30:56 proxmox postfix/qmgr[2334457]: 88368101259: removed
Jul 13 10:30:53 proxmox postfix/smtpd[2339559]: connect from mail-ot1-f43.google.com[209.85.210.43]
Jul 13 10:30:54 proxmox postfix/smtpd[2339559]: 88368101259: client=mail-ot1-f43.google.com[209.85.210.43]
Jul 13 10:30:54 proxmox postfix/cleanup[2339529]: 88368101259: message-id=<CAGpFaXUMQGg33x9YTovs=-VEg+QUo3TrYv8__76fTMKKMjso0g@mail.gmail.com>
Jul 13 10:30:54 proxmox postfix/qmgr[2334457]: 88368101259: from=<manesh@saturnme.com>, size=3550, nrcpt=1 (queue active)
Jul 13 10:30:54 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: new mail message-id=<CAGpFaXUMQGg33x9YTovs=-VEg+QUo3TrYv8__76fTMKKMjso0g@mail.gmail.com>#012
Jul 13 10:30:54 proxmox postfix/smtpd[2339559]: disconnect from mail-ot1-f43.google.com[209.85.210.43] ehlo=1 mail=1 rcpt=1 bdat=1 quit=1 commands=5
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: SA score=0/5 time=1.380 bayes=0.49 autolearn=ham autolearn_force=no hits=AWL(-0.995),BAYES_50(0.8),DKIM_SIGNED(0.1),DKIM_VALID(-0.1),DKIM_VALID_AU(-0.1),DKIM_VALID_EF(-0.1),HTML_MESSAGE(0.001),RCVD_IN_DNSWL_NONE(-0.0001),RCVD_IN_MSPIKE_H3(0.001),RCVD_IN_MSPIKE_WL(0.001),SPF_HELO_NONE(0.001),SPF_PASS(-0.001),T_SCC_BODY_TEXT_LINE(-0.01)
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: notify <manesh@saturnme.com> (rule: Blacklist, 20D181012CD)
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: block mail to <bvy@bin-drai.com> (rule: Blacklist)
Jul 13 10:30:56 proxmox pmg-smtp-filter[2339490]: 1012B564AF9A1E94420: processing time: 1.575 seconds (1.38, 0.085, 0)
Jul 13 10:30:56 proxmox postfix/lmtp[2339530]: 88368101259: to=<bvy@bin-drai.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.9, delays=0.25/0/0.05/1.6, dsn=2.7.0, status=sent (250 2.7.0 BLOCKED (1012B564AF9A1E94420))
Jul 13 10:30:56 proxmox postfix/qmgr[2334457]: 88368101259: removed