From: mouss (moussnetoyen.net)
Date: Tue Apr 01 2008 - 14:22:44 CDT

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kj wrote:
> Hi guys,
>
> Trying to get this going. The destination server does not do
> recipient verification, but it does offer VRFY which allows me to
> distinguish between real and bogus addresses.
>
> I have:
>
> /etc/postfix/transport:
>
> somedomain.com smtp:[10.0.0.5]
>
> /etc/postfix/verify_domain
>
> somedomain.com verify_recipient
>
> and then:
>
> /etc/postfix/main.cf:
>
> smtpd_restriction_classes = verify_recipient
> verify_recipient = reject_unverified_recipient
> smtpd_recipient_restrictions =
> permit_sasl_authenticated,
> permit_mynetworks,
> reject_unauth_destination,
> reject_unknown_recipient_domain,
> check_recipient_access hash:/etc/postfix/verify_domain,
> reject_unverified_recipient
>
> Logging is set to debug for 10.0.0.5, and in the log I see:
>
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]: 220
> mail.somedomain.com ESMTP Service ready at Tue, 1 Apr 2008 19:54:58
> Apr 1 20:54:59 160468 postfix/smtp[16346]: > 10.0.0.5[10.0.0.5]: EHLO
> relay.somedomain.com
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]:
> 250-mail.somedomain.com Hello relay.somedomain.com, pleased to meet you
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]:
> 250-HELP
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]:
> 250-VRFY
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]:
> 250-AUTH LOGIN
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]: 250-DSN
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]:
> 250-SIZE
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]:
> 250-8BITMIME
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]: 250
> PIPELINING
> Apr 1 20:54:59 160468 postfix/smtp[16346]: server features: 0x900f
> size 0
> Apr 1 20:54:59 160468 postfix/smtp[16346]: Using ESMTP PIPELINING,
> TCP send buffer size is 4096
> Apr 1 20:54:59 160468 postfix/smtp[16346]: > 10.0.0.5[10.0.0.5]: MAIL
> FROM:<roototherdomain.com> SIZE=287
> Apr 1 20:54:59 160468 postfix/smtp[16346]: > 10.0.0.5[10.0.0.5]: RCPT
> TO:<someonesomedomain.com> ORCPT=rfc822;someonesomedomain.com
> Apr 1 20:54:59 160468 postfix/smtp[16346]: > 10.0.0.5[10.0.0.5]: RSET
> Apr 1 20:54:59 160468 postfix/smtp[16346]: > 10.0.0.5[10.0.0.5]: QUIT
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]: 250
> roototherdomain.com... Sender OK
> Apr 1 20:54:59 160468 postfix/smtp[16346]: < 10.0.0.5[10.0.0.5]: 250
> someonesomedomain.com... Recipient OK
>
> It's just doing the usual mail from/rcpt to. How do I force it to use
> VRFY instead?

you don't. it uses RCPT TO because it is more reliable.

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