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Joined: 06 Jul 2005
Posts: 6347
Location: /usr/lib64/lv2

PostPosted: Wed Mar 09, 2016 3:42 pm    Post subject: Postfix: authentication failure Reply with quote

Setting up my mail server. I'm at this point. I'm at the section titled "To verify sasl support telnet can be used to check for the AUTH statement." I don't get anything but authentication failures when I try to auth login.



sasl_pwcheck_method: auxprop
sasl_auxprop_plugin: mysql
password_format: crypt
mech_list: LOGIN PLAIN

sql_engine: mysql
sql_hostnames: localhost
sql_database: (dbname)
sql_user: (user)
sql_passwd: (pw)
sql_select: SELECT password FROM mailbox WHERE local_part='%u' AND active='1'



compatibility_level = 2
soft_bounce = yes
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = (fqdn)
mydomain = (domain.tld)
unknown_local_recipient_reject_code = 450
mynetworks_style = host
recipient_delimiter = +
debug_peer_level = 2
debugger_command =
         ddd $daemon_directory/$process_name $process_id & sleep 5

sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /etc/postfix
readme_directory = no
inet_protocols = ipv4
meta_directory = /etc/postfix
shlib_directory = /usr/lib64/postfix/${mail_version}
home_mailbox = .maildir/

############## USER ADDED CONFIG

# Link the mailbox uid and gid to postfix.
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000

# Set the base address for all virtual mailboxes
virtual_mailbox_base = /var/vmail

## (Ensure that there are no other alias_maps definitions)
alias_maps = mysql:/etc/postfix/
relocated_maps = mysql:/etc/postfix/

local_transport = local
local_recipient_maps = $alias_maps $virtual_mailbox_maps unix:passwd.byname

virtual_transport = virtual
## (The domains listed by the mydestination should not be listed in
##  the virtual_mailbox_domains parameter)
virtual_mailbox_domains =, $

virtual_minimum_uid = 1000
## (Substitute $vmail-gid with the GID of the vmail group)
virtual_gid_maps = static:$vmail-gid
virtual_mailbox_maps = mysql:/etc/postfix/
virtual_alias_maps = mysql:/etc/postfix/
## (Substitute $vmail-uid with the UID of the vmail user)
virtual_uid_maps = static:$vmail-uid

# Postifx to SASL authentication
broken_sasl_auth_clients = no
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain =
smtpd_sasl_authenticated_header = no
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination

This is what happens no matter what I do. I've tried base64 encoding the plain text password and the password hash that appears in the database as put there by postfixadmin.


auth login
334 VXNlcm5hbWU6
334 UGFzc3dvcmQ6
435 4.7.8 Error: authentication failed: authentication failure

What am I missing?
Gentoo Studio: A Gentoo-based, professional digital audio workstation OS.
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Joined: 29 Sep 2005
Posts: 621
Location: Yeovil, Somerset, UK

PostPosted: Mon Mar 14, 2016 9:52 pm    Post subject: Re: Postfix: authentication failure Reply with quote

It's hard to know exactly where to start but no-one has chimed in yet. Start with your logs.

Is that really a full copy and paste of an auth session because the example and all smtpds I know of would put AUTH LOGIN in uppercase. Could you copy and paste a full telnet session.

Is your username "online" and is your password really "1qaz2wsx!QAZ" (I think I've got that right and getting an English word for the username can't be a coincidence!) Double check with the perl command given and then check that the generated string is correct by changing encode_base64 to decode_base64 and putting the string in the quotes. base64 is not encryption, only encoding!

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