Vernon Schryver wrote:
From: Daniel Gehriger
Is there anything like a reproducable test case?
Does it happen when the SMTP client IP address is not marked "mx"?
Yes, definitely. If I use my DSL connection (not an MX) to send myself
an e-mail w/o using a whitelisted sender address, it's immediately
rejected even though neither a DNSBL or a checksum limited is hit.
Does that mean there is a test case that fails all or most of the
time? If so, can the test case be described?
I have been assuming that dccifd is running as a before-queue for
Postfix. Is that correct?
Yes. Here is the relevant part of /etc/postfix/master.cf:
# Public interface for incoming mail
mail.mydomain.com:smtp inet n - y - 10 smtpd
-o receive_override_options=no_address_mappings
-o smtp_send_xforward_command=yes
-o smtpd_proxy_timeout=200s
-o smtpd_proxy_filter=127.0.0.1:10023
localhost:10026 inet n - y - - smtpd
-o myhostname=localhost
-o receive_override_options=no_header_body_checks,no_unknown_recipient_checks
-o smtpd_recipient_restrictions=permit_mynetworks,reject_unauth_destination
-o smtpd_authorized_xforward_hosts=127.0.0.0/8
To reproduce, from my DSL connection, I do
> telnet mail.mydomain.com 25
220 mail.mydomain.com ESMTP Postfix
mail from:<me>
250 2.1.0 Ok
rcpt to:<[EMAIL PROTECTED]>
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
foo
.
The rcpt to address must be valid, of course, and the DNSBL disabled.
After entering the ".", I immediately receive an error that the message
has been rejected as Spam.
- Daniel
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