stop users receiving mail with no domain

[Reptile]

Using, Debian 4 and Postfix.

I have set up virtual domains which is working nicely, however, I have been receiving spam because people have been sending email to generic names like reptile@atmydomain.com when the email is not set up in the /etc/postfix/virtual/addresses file.

because the user reptile exists the mail is sent to this inbox. how do i stop mail going to this inbox and only going to the inbox of the mail specified in the virtual addresses list?

I am aware I could obviously change my login to something less generic or send that specific email to a catch account but i'd rather have it rejected.

[edge]

I'm not sure how I stopped this on my server, but it was something I added to main.cf in /etc/postfix

I think it was one of the following lines:

unknown_address_reject_code = 554
unknown_local_recipient_reject_code = 554
unknown_virtual_alias_reject_code = 554
unknown_virtual_mailbox_reject_code = 554

Make sure you restart postfix after adding the lines.

/etc/init.d/postfix restart

[Reptile]

nah , that didn't work

[falko]

What's in your /etc/postfix/main.cf?

[Reptile]

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no

append_dot_mydomain = no

smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
smtpd_use_tls = yes
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache

myhostname = server.xxxx.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases

mydomain = $myhostname
myorigin = $mydomain
mydestination = $myhostname, /etc/postfix/virtual/domains, localhost, localhost.$mydomain
virtual_maps = hash:/etc/postfix/virtual/addresses
virtual_transport = virtual
local_transport = local
relayhost =
mynetworks = 127.0.0.0/8
mailbox_command =
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
smtpd_sasl_local_domain =
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject _unauth_destination
#smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
smtpd_error_sleep_time = 2
tls_random_source = dev:/dev/urandom
home_mailbox = Maildir/
unknown_address_reject_code = 554
unknown_local_recipient_reject_code = 554
unknown_virtual_alias_reject_code = 554
unknown_virtual_mailbox_reject_code = 554

[falko]

What's in /etc/postfix/virtual/addresses and /etc/postfix/virtual/domains?

[Reptile]

in the domains file is just a domain name like

www.xxxxx.com

and in the the addresses file

user1@xxxxx.com reptile
user2@xxxxx.com another_user

thats all.

[falko]

Originally Posted by Reptile

in the domains file is just a domain name like

www.xxxxx.com

and in the the addresses file

user1@xxxxx.com reptile
user2@xxxxx.com another_user

thats all.

If you want to send emails to user1@xxxxx.com, you should have xxxxx.com in the domains file, not www.xxxxx.com.

[Reptile]

i think we are off the point now. The problem is not that the users are not receiving email, the problem is that a user created with the useradd command will receive email when there is no matching domain name if the name before the @ is the same.

i.e. i only want users setup in the virtual/addresses file to receive email on those specific addresses.

Please refer to the original post for the original question.

For reference, I didn't have www. in the domain file, that was a mistake i made when typing it out.

[edge]

Try adding the following to your main.cf

local_recipient_maps = $alias_maps

and see if this does the trick. (make sure you restart postfix)