Postfix Temporary lookup failure
I am trying to set up postfix, but I get a "Temporary lookup failure" error
main.cf:
inet_protocols = ipv4
inet_interfaces = all
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = ns0.dzervas.gr
mydomain = dzervas.gr
myorigin = dzervas.gr
mynetworks_style = host
mydestination = localhost, localhost.$mydomain, $myhostname, $mydomain, mail.$mydomain, www.$mydomain
virtual_mailbox_base = /var/mail/vhost
virtual_mailbox_maps = hash:/etc/postfix/vmailbox
virtual_minimum_uid = 1000
virtual_uid_maps = static:2000
virtual_gid_maps = static:2000
virtual_alias_maps = hash:/etc/postfix/valias
smtp_generic_maps = hash:/etc/postfix/generic
vmailbox:
[email protected] dzervas.gr/dzervas
[email protected] dzervas.gr/dna
[email protected] ns0.dzervas.gr/dzervas
valias:
[email protected] [email protected]
[email protected] [email protected]
[email protected] [email protected]
#[email protected] [email protected]
generic:
[email protected] root
telnet testing:
Trying <ip>...
Connected to <ip>.
Escape character is '^]'.
220 ns0.dzervas.gr ESMTP Postfix
ehlo test.com
250-ns0.dzervas.gr
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from: [email protected]
250 2.1.0 Ok
rcpt to: [email protected]
451 4.3.0 <[email protected]>: Temporary lookup failure
quit
221 2.0.0 Bye
Connection closed by foreign host.
journalctl reports:
May 09 15:09:22 ns0 postfix/smtpd[7754]: error: open database /etc/aliases.db: No such file or directory
May 09 15:09:22 ns0 postfix/smtpd[7754]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled
May 09 15:09:22 ns0 postfix/smtpd[7754]: connect from <client-ip>
May 09 15:09:43 ns0 postfix/smtpd[7754]: warning: hash:/etc/aliases is unavailable. open database /etc/aliases.db: No such file or directory
May 09 15:09:43 ns0 postfix/smtpd[7754]: warning: hash:/etc/aliases lookup error for "[email protected]"
May 09 15:09:43 ns0 postfix/smtpd[7754]: NOQUEUE: reject: RCPT from <client-ip>: 451 4.3.0 <[email protected]>: Temporary lookup failure; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<test.com>
May 09 15:09:52 ns0 postfix/smtpd[7754]: disconnect from <client-ip>
I should point out that I haven't set up the DNS records yet (dzervas.gr is not pointing my new server yet) Also I'm on arch linux x86_64
EDIT: I created an empty /etc/aliases and then newaliases
new problem (in telnet):
rcpt to: [email protected]
550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in local recipient table
but!:
rcpt to: root@localhost
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
hhahahahha
.
250 2.0.0 Ok: queued as <some-code>
EDIT 2: solved the Recipient address rejected: User unknown in local recipient table by setting local_recipient_maps = in main.cf
However, now my mail to [email protected] get queued! it does not go at /var/mail/vmail/dzervas.gr/dzervas/ as it should!
Run newaliases . If /etc/aliases doesn't exist then create it first, then run newaliases .
Also maybe update/add alias_maps = hash:/etc/aliases to /etc/postfix/main.cf to get rid of the other warning.
Then try again.
(If you test with telnet, you don't need working DNS).
2nd issue:
First remove $myhostname, $mydomain, from mydestination, since virtual domains shouldn't be listed here.
Then add (to main.cf):
virtual_mailbox_domains=dzervas.gr
Reload postfix and try again.
mynetworks needs strict network ranges
In my case, there was a wrong ip range in /etc/postfix/main.cf.
# Wrong; Temporary lookup failure
mynetworks = 172.16.0.0/8
# OK
mynetworks = 172.16.0.0/12
There was an error in /var/log/maillog that I noticed later.
Oct 4 13:47:54 postfix/smtpd[25056]: warning: non-null host address bits in "172.16.0.0/8", perhaps you should use "172.0.0.0/8" instead
If someone comes here from the top hit on google with searching Temporary lookup failure, I'd say please dubble-check your $mynetworks format.