Advanced Email Routing - Error 550 5.1.1 Recipient address rejected

Discussion in 'Installation/Configuration' started by Antonino Esposito, Jun 8, 2018.

  1. Antonino Esposito

    Antonino Esposito New Member

    Ciao Guys,
    i've setup ISPConfig 3 and Postfix and i'm struggling to have Email Routing working.

    My domains are listed only in Advanced Email Routing, and this server has no other domain or mailbox locally. When i receive an email for the domain i'm trying to route, the log is the following:

    Jun 8 09:29:04 XXXXXXX postfix/smtpd[18485]: connect from sv1.howtoforge.com[148.251.213.113]
    Jun 8 09:29:04 XXXXXXX postfix/smtpd[18485]: NOQUEUE: filter: RCPT from sv1.howtoforge.com[148.251.213.113]: <[email protected]>: Sender address triggers FILTER amavis:[127.0.0.1]:10026; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<sv1.howtoforge.com>
    Jun 8 09:29:04 XXXXXXX postfix/smtpd[18485]: NOQUEUE: filter: RCPT from sv1.howtoforge.com[148.251.213.113]: <[email protected]>: Sender address triggers FILTER amavis:[127.0.0.1]:10024; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<sv1.howtoforge.com>
    Jun 8 09:29:04 XXXXXXX postfix/smtpd[18485]: NOQUEUE: reject: RCPT from sv1.howtoforge.com[148.251.213.113]: 550 5.1.1 <suppor[email protected]>: Recipient address rejected: User unknown in relay recipient table; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<sv1.howtoforge.com>
    Jun 8 09:29:04 XXXXXXX postfix/smtpd[18485]: disconnect from sv1.howtoforge.com[148.251.213.113] ehlo=1 mail=1 rcpt=0/1 data=0/1 rset=1 quit=1 commands=4/6

    Have you any hint for me?
    Thanks
     
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    You missed adding the allowed recipients under relay recipients in the ISPConfig mail menu. See chapter 4.7.6.4 of the ISPConfig manual.
     
  3. Antonino Esposito

    Antonino Esposito New Member

    Ciao Till,
    thanks for prompt reply.

    This means I've to list all mailboxes in my server. I wanna just act as antispam and forward "clean" email to the main email server.
    Is it possible to have this kind of setup?
    Thanks
     
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    That's what this setup is doing. You can also add just @domain.tld there, see manual, but you'll have to ensure then that the server where you forward emails to is not rejecting emails for non-existing addresses. If it would reject emails on the second server, then this would cause backscatter spam and your server will get blacklisted by other mail servers.
     
    Antonino Esposito likes this.
  5. Antonino Esposito

    Antonino Esposito New Member

    Thanks, i'll configure the destination server in order to prevent the backscatter spam.
    Cheers
     

Share This Page