From: kj (koffiejunkielistlurkerkoffiejunkie.za.net)
Date: Tue Apr 01 2008 - 14:07:03 CDT

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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?

Thanks

--kj

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