One of my supplier's mail server bounce my Odoo email.
Odoo config:
In Settings | Technical > General Settings:
Alias Domain: mydomain.com
In Settings | Technical > Parameters > System Parameters:
mail.catchall.domain: mydomain.com
mail.catchall.alias: catchall
mail.bounce.alias: bounce
In Settings | Technical > Email:
Outgoing Mail Servers: mail.mydomain.com Zimbra server is working
Error logs:
Jan 11 10:27:35 mail postfix/smtpd[31517]: connect from v004yj-2bite.sphostserver.com[*.*.*.*]
Jan 11 10:27:36 mail postfix/smtpd[31517]: Anonymous TLS connection established from v004yj-2bite.sphostserver.com[*.*.*.*]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
Jan 11 10:27:36 mail postfix/smtpd[31517]: NOQUEUE: filter: RCPT from v004yj-2bite.sphostserver.com[*.*.*.*]: <>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026; from=<> to=<bounce+24-purchase.order-1@mydomain.com> proto=ESMTP helo=<v004yj-2bite.sphostserver.com>
Jan 11 10:27:36 mail postfix/smtpd[31517]: NOQUEUE: filter: RCPT from v004yj-2bite.sphostserver.com[*.*.*.*]: <>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10024; from=<> to=<bounce+24-purchase.order-1@mydomain.com> proto=ESMTP helo=<v004yj-2bite.sphostserver.com>
Jan 11 10:27:36 mail postfix/smtpd[31517]: NOQUEUE: reject: RCPT from v004yj-2bite.sphostserver.com[*.*.*.*]: 550 5.1.1 <bounce+24-purchase.order-1@mydomain.com>: Recipient address rejected: mydomain.com; from=<> to=<bounce+24-purchase.order-1@mydomain.com> proto=ESMTP helo=<v004yj-2bite.sphostserver.com>
Jan 11 10:27:36 mail postfix/smtpd[31517]: disconnect from v004yj-2bite.sphostserver.com[*.*.*.*] ehlo=2 starttls=1 mail=1 rcpt=0/1 quit=1 commands=5/6
Jan 11 10:27:36 mail postfix/smtp[31515]: 6781C5A3BDE: to=<info@suplierdomain.it>, relay=mail.suplierdomain.it[*.*.*.*]:25, delay=0.8, delays=0.05/0.03/0.2/0.53, dsn=5.0.0, status=bounced (host mail.suplierdomain.it[*.*.*.*] said: 550-Verification failed for <bounce+24-purchase.order-1@mydomain.com> 550-Called: [*.*.*.*] 550-Sent: RCPT TO:<bounce+24-purchase.order-1@mydomain.com> 550-Response: 550 5.1.1 <bounce+24-purchase.order-1@mydomain.com>: Recipient address rejected: mydomain.com 550 Sender verify failed (in reply to RCPT TO command))
