Email configuration error

Discussion in 'Recipe Editor' started by lenlo, Oct 7, 2017.

  1. lenlo

    lenlo New Member

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    Background: I run my own mail server and use Mail Avenger for SPAM protection. Mail Avenger will try to validate the envelope sender [MAIL FROM:<...>] by trying to connect back to the sender's domain. If that fails, the email is likely SPAM and will be rejected.

    In this case, Brewer's Friend is sending out email messages with a syntactically correct sender address, but with a domain for which there is no SMTP server listening despite valid MX records being present. I'm assuming that this is an error that you would like to correct.

    See below for details.

    Regards,
    Lennart Lövstrand

    Oct 7 15:31:44 vps2 : asmtpd: accepted connection from 198.2.181.164:55593 (fd 7)
    Oct 7 15:31:59 vps2 : mail164.suw18.rsgsv.net (7) <== 220 mail.lovstrand.com ESMTP
    Oct 7 15:31:59 vps2 : mail164.suw18.rsgsv.net (7) ==> EHLO mail164.suw18.rsgsv.net
    Oct 7 15:31:59 vps2 : mail164.suw18.rsgsv.net (7) <== 250-mail.lovstrand.com
    Oct 7 15:31:59 vps2 : mail164.suw18.rsgsv.net (7) <== 250-STARTTLS
    Oct 7 15:31:59 vps2 : mail164.suw18.rsgsv.net (7) <== 250 PIPELINING
    Oct 7 15:31:59 vps2 : mail164.suw18.rsgsv.net (7) ==> MAIL FROM:<bou[email protected]mail164.suw18.rsgsv.net>
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) <== 250 ok
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) ==> RCPT TO:<[email protected]>
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) <== 451-There is a problem with sender <bou[email protected]mail164.suw18.rsgsv.net>.
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) <== 451-It is not possible to send bounce messages to that address.
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) <== 451 could not connect to server for mail164.suw18.rsgsv.net
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) ==> DATA
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) <== 503 must follow rcpt
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) ==> QUIT
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) <== 221 mail.lovstrand.com
    Oct 7 15:33:02 vps2 : mail164.suw18.rsgsv.net (7) === EOF

    $ host mail164.suw18.rsgsv.net
    mail164.suw18.rsgsv.net has address 198.2.181.164
    mail164.suw18.rsgsv.net mail is handled by 10 mail.mail164.suw18.rsgsv.net.

    $ telnet mail.mail164.suw18.rsgsv.net 25
    Trying 198.2.181.164...
    telnet: Unable to connect to remote host: Connection timed out
     

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