On Sun, 17 Nov 2013, Wietse Venema wrote:

Adam Pribyl:
Hello,

we were using postfix as mail server directly delivering email from and to
company without issues. Now we had to change the ISP and the new one
forces us to use his relay as "The next-hop destination of non-local
mail" - this means I only added a directive "relayhost" to our setup.

With relayhost setup, when local user sends email to non-existant
domain, it just passes the email to relayhost even thou there is
smtpd_recipient_restrictions = reject_unknown_recipient_domain

When I disable the relayhost, then postfix rejects the emails to
non-existant domain correctly. From a postfix doc it seems the relayhost

Then, you have made some configation error. What error?

Thanks for the answer, here is additional info:

Then only change in the config is a
relayhost = aaaaa.aaa.aa
With relayhost set, the relay says:

Nov 17 16:34:48 aaaa postfix/smtp[19758]: 018FF37289: to=<a...@aaaaa.aa>,
relay=aaaaa.aaa.aa[ddd.ddd.dd.ddd]:25, delay=373545, 
delays=373545/0.01/0.04/0.04,
dsn=4.1.2, status=deferred (host aaaaa.aaa.aa[ddd.ddd.dd.ddd]
said: 450 4.1.2 <a...@aaaaa.aa>: Recipient address rejected:
Domain not found (in reply to RCPT TO command))

But I'd like those to be rejected by my postfix, not relay. And this is what my postfix does, if relayhost is not in config.

To report a problem see http://www.postfix.org/DEBUG_README.html#mail

Thank you for using Postfix.

        Wietse


Adam Pribyl

There is no magic in postfix config:

alias_maps = hash:/etc/aliases
always_bcc = bbbb
anvil_status_update_time = 6h
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
content_filter = lmtp-amavis:[127.0.0.1]:10024
delay_warning_time = 4h
disable_vrfy_command = yes
html_directory = /usr/share/doc/postfix/html
inet_protocols = ipv4
local_destination_concurrency_limit = 1
mailbox_command = /usr/bin/maildrop
mailbox_size_limit = 0
max_use = 10
message_size_limit = 40960000
mydestination = $myself $mydomain $myself.$mydomain www.$mydomain web.$mydomain mail.$mydomain ftp.$mydomain $mydomain2 $myself.$mydomain2 www.$mydomain2 web.$mydomain2 mail.$mydomain2 ftp.$mydomain2
mydomain = ccccc.cc
myhostname = $myself.$mydomain
mynetworks = 127.0.0.1 dd.dd.0.0/12
myorigin = $mydomain
parent_domain_matches_subdomains =
readme_directory = /usr/share/doc/postfix
receive_override_options = no_address_mappings
recipient_delimiter = +
relay_domains =
relayhost = aaaaa.aaa.aa
show_user_unknown_table_name = no
smtp_helo_name = $myorigin
smtpd_banner = $myhostname ESMTP Welcome.
smtpd_recipient_restrictions = reject_unlisted_sender, reject_unknown_recipient_domain, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_unknown_sender_domain, check_sender_access hash:/etc/postfix/sender_checks, check_recipient_access hash:/etc/postfix/local_only_access
soft_bounce = no
virtual_alias_maps = hash:/etc/postfix/virtual


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