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SMTP? Postfix + Dovecot, "Relay Access.." SOLVED
https://forum.linode.com/viewtopic.php?f=11&t=6667		 Page 1 of 1
Author:  Emmanuel2 [ Sun Feb 06, 2011 2:06 pm ]
Post subject:  SMTP? Postfix + Dovecot, "Relay Access.." SOLVED
I've followed the postfix guide (http://library.linode.com/email/postfix/dovecot-mysql-ubuntu-10.04-lucid) to the letter (I think) and installed postfix, dovecot and saslauthd. I've setup my domains and users and I can receive emails perfectly fine, but I can't send them. I think there's problems trying to connect to the SMTP server or something?

In Roundcube I get this error message:

SMTP Error (554): Failed to add recipient "email@example.com" (5.7.1 : Relay access denied)

I've also tried using two other (windows) email clients which can both receive emails fine but can't connect to the SMTP server.

Here's the results of a telnet:

Code:
telnet localhost 25
ehlo localhost
250-li244-40.members.linode.com
250-PIPELINING
250-SIZE 30720000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN


Here's my postfix main.cf file:

Code:
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

append_dot_mydomain = no

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

myhostname = li244-40.members.linode.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = li244-40.members.linode.com, localhost, localhost.localdomain
relayhost = 
mynetworks = 127.0.0.0/8
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
html_directory = /usr/share/doc/postfix/html
message_size_limit = 30720000
virtual_alias_domains = 
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, mysql:/etc/postfix/mysql-virtual_email2email.cf
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf
virtual_mailbox_base = /home/vmail
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_authenticated_header = yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
virtual_create_maildirsize = yes
virtual_maildir_extended = yes
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps
virtual_transport = dovecot
dovecot_destination_recipient_limit = 1


Am I doing something wrong here? Or perhaps I'm using wrong settings in my mail client?

I've trying something like this:
SMTP server: li244-40.members.linode.com
SMTP Port: 25
SMTP Auth: Yes
Authentication: PLAIN

It doesn't even seem to connect to the smtp server...

Any help would be greatly appreciated. Thanks!
Author:  Emmanuel2 [ Sun Feb 06, 2011 2:22 pm ]
Post subject: 
I've now managed to connect to the smtp server from my desktop mail client, but I get the same message as I got from roundcube "Relay Access Denied" when it tries to send an email
Author:  Stever [ Sun Feb 06, 2011 3:53 pm ]
Post subject: 
It looks like your sasl isn't working - what do your logs say when you try to send an email?
Author:  Emmanuel2 [ Sun Feb 06, 2011 5:00 pm ]
Post subject: 
Here's a something from /var/log/mail.log

Code:
Feb  6 19:29:19 li244-40 postfix/smtpd[10658]: warning: 88.191.65.117: hostname 88-191-65-117.rev.dedibox.fr verification failed: Name or service not known
Feb  6 19:29:19 li244-40 postfix/smtpd[10658]: connect from unknown[88.191.65.117]
Feb  6 19:29:19 li244-40 postfix/smtpd[10658]: warning: non-SMTP command from unknown[88.191.65.117]: GET / HTTP/1.1
Feb  6 19:29:19 li244-40 postfix/smtpd[10658]: disconnect from unknown[88.191.65.117]


Otherwise there's lots of entries like this

Code:
Feb  6 19:14:06 li244-40 dovecot: imap-login: Login: user=<eman@onlythebible.com>, method=PLAIN, rip=173.255.234.40, lip=173.255.234.40, secured
Feb  6 19:14:06 li244-40 dovecot: IMAP(eman@onlythebible.com): Disconnected: Logged out bytes=63/492


Ah!, this bit could be what we're looking for:


Code:
Feb  6 19:07:14 li244-40 postfix/smtpd[10266]: connect from c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]
Feb  6 19:07:16 li244-40 postfix/smtpd[10266]: warning: SASL authentication failure: cannot connect to saslauthd server: No such file or directory
Feb  6 19:07:16 li244-40 postfix/smtpd[10266]: warning: c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]: SASL LOGIN authentication failed: gener$
Feb  6 19:07:17 li244-40 postfix/smtpd[10266]: NOQUEUE: reject: RCPT from c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]: 554 5.7.1 <emmanuelhi$
Feb  6 19:07:19 li244-40 postfix/smtpd[10266]: disconnect from c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]
Feb  6 19:09:21 li244-40 dovecot: dovecot: SIGHUP received - reloading configuration
Feb  6 19:09:22 li244-40 dovecot: auth-worker(default): mysql: Connected to 127.0.0.1 (mail)
Feb  6 19:09:31 li244-40 postfix/smtpd[10319]: connect from c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]
Feb  6 19:09:33 li244-40 postfix/smtpd[10319]: warning: SASL authentication failure: cannot connect to saslauthd server: No such file or directory
Feb  6 19:09:33 li244-40 postfix/smtpd[10319]: warning: c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]: SASL LOGIN authentication failed: gener$
Feb  6 19:09:33 li244-40 postfix/smtpd[10319]: NOQUEUE: reject: RCPT from c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]: 554 5.7.1 <emmanuelhi$
Feb  6 19:09:35 li244-40 postfix/smtpd[10319]: disconnect from c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]
Feb  6 19:09:53 li244-40 dovecot: dovecot: SIGHUP received - reloading configuration
Feb  6 19:09:53 li244-40 dovecot: auth-worker(default): mysql: Connected to 127.0.0.1 (mail)


This bit
Quote:
Feb 6 19:07:16 li244-40 postfix/smtpd[10266]: warning: SASL authentication failure: cannot connect to saslauthd server: No such file or directory
looks like the problem.
So there must be something wrong with the saslauthd server?
Author:  obs [ Sun Feb 06, 2011 7:39 pm ]
Post subject: 
Looks like it, first try

service saslauthd restart

if that doesn't work try running through http://library.linode.com/email/postfix ... _use_mysql again
Author:  Emmanuel2 [ Sun Feb 06, 2011 9:26 pm ]
Post subject: 
Okay, Tried "service saslauthd restart", which did this:

Code:
 * Stopping SASL Authentication Daemon saslauthd                    [ OK ]
 * Starting SASL Authentication Daemon saslauthd                    [ OK ]


Yes, and then I carefully went through that section of the tutorial, but nothing has changed :(
Author:  obs [ Sun Feb 06, 2011 11:49 pm ]
Post subject: 
Well that about covers the extent of my mail server knowledge (don't run one, never have), so I'll have to defer to someone who does.
Author:  Emmanuel2 [ Mon Feb 07, 2011 2:44 am ]
Post subject: 
Okay, well thanks for trying.

I still haven't figured it out. :(
Author:  Emmanuel2 [ Mon Feb 07, 2011 2:56 am ]
Post subject: 
Okay, now I'm getting another slightly different error message. Probably related to the same problem though:

Code:
Feb  7 06:53:11 li244-40 postfix/smtpd[16108]: warning: c114-77-115-211.chirn2.vic.optusnet.com.au[114.77.115.211]: SASL LOGIN authentication failed: authentication failure
Author:  Emmanuel2 [ Mon Feb 07, 2011 3:11 am ]
Post subject: 
Problem Solved!

Ended up uncommenting the following lines from the /etc/postfix/master.cf file

Code:
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject


As well as adding this new line

Code:
submission inet n - n - - smtpd


Now it works like a charm, the host rejected error was just because I had the wrong password.
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