Getting Postfix to Work under CentOS 7

GrayGhost93 · 07-20-2016, 08:26 AM

Hi, I have some troubles to get postfix to work with an external smtp server, which is using starttls. Can someone help me please?

Maillog:

Code:

Jul 20 15:05:16 hostname postfix/master[16799]: daemon started -- version 2.10.1, configuration /etc/postfix
Jul 20 15:05:50 hostname postfix/pickup[16800]: 2E57E8000D6B: uid=0 from=<root>
Jul 20 15:05:50 hostname postfix/cleanup[16806]: 2E57E8000D6B: message-id=<20160720130550.2E57E8000D6B@hostname.localdomain>
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 2E57E8000D6B: from=<root@hostname.localdomain>, size=463, nrcpt=1 (queue active)
Jul 20 15:05:50 hostname postfix/cleanup[16806]: 32F968000D6E: message-id=<20160720130550.2E57E8000D6B@hostname.localdomain>
Jul 20 15:05:50 hostname postfix/local[16808]: 2E57E8000D6B: to=<root@hostname.localdomain>, orig_to=<root>, relay=local, delay=0.04, delays=0.03/0.01/0/0, dsn=2.0.0, status=sent (forwarded as 32F968000D6E)
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 32F968000D6E: from=<root@hostname.localdomain>, size=609, nrcpt=1 (queue active)
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 2E57E8000D6B: removed
Jul 20 15:05:50 hostname postfix/smtp[16809]: 32F968000D6E: to=<admin@hostname.de>, orig_to=<root>, relay=mail.udmedia.de[194.117.254.48]:587, delay=0.33, delays=0/0.02/0.28/0.03, dsn=5.0.0, status=bounced (host mail.udmedia.de[194.117.254.48] said: 550 SMTP AUTH required (in reply to MAIL FROM command))
Jul 20 15:05:50 hostname postfix/cleanup[16806]: 8D7AF8000D6B: message-id=<20160720130550.8D7AF8000D6B@hostname.localdomain>
Jul 20 15:05:50 hostname postfix/bounce[16811]: 32F968000D6E: sender non-delivery notification: 8D7AF8000D6B
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 8D7AF8000D6B: from=<>, size=2602, nrcpt=1 (queue active)
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 32F968000D6E: removed
Jul 20 15:05:50 hostname postfix/cleanup[16806]: 8EC808000D6E: message-id=<20160720130550.8D7AF8000D6B@hostname.localdomain>
Jul 20 15:05:50 hostname postfix/local[16808]: 8D7AF8000D6B: to=<root@hostname.localdomain>, relay=local, delay=0.01, delays=0/0/0/0, dsn=2.0.0, status=sent (forwarded as 8EC808000D6E)
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 8EC808000D6E: from=<>, size=2748, nrcpt=1 (queue active)
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 8D7AF8000D6B: removed
Jul 20 15:05:50 hostname postfix/smtp[16809]: 8EC808000D6E: to=<admin@hostname.de>, orig_to=<root@hostname.localdomain>, relay=mail.udmedia.de[194.117.254.48]:587, delay=0.29, delays=0/0/0.26/0.03, dsn=5.0.0, status=bounced (host mail.udmedia.de[194.117.254.48] said: 550 SMTP AUTH required (in reply to MAIL FROM command))
Jul 20 15:05:50 hostname postfix/qmgr[16801]: 8EC808000D6E: removed

/etc/postfix/main.cf:

Code:

queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myorigin = $myhostname
inet_interfaces = localhost
inet_protocols = ipv4
mydestination = $myhostname, localhost.$mydomain, localhost
unknown_local_recipient_reject_code = 550
mynetworks = 192.168.2.0/24, 127.0.0.0/8
relayhost = mail.udmedia.de:587
smtpd_sasl_path = smtpd
smtp_sasl_auth_enable = yes
smtp_sasl_type = cyrus
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt
smtp_sasl_tls_security_options = noanonymous
smtp_use_tls = yes
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
smtpd_banner = $myhostname ESMTP
debug_peer_level = 2
debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.10.1/samples
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES

I just have no idea, why it's not working :/

Thanks allready!

descendant_command · 07-21-2016, 02:37 AM

Your postfix looks to be working fine.
Your relay wants you to authenticate properly.
edit: Having an external alias's for local addresses is usually a bad idea, until your setup is working properly anyway.

GrayGhost93 · 07-21-2016, 02:52 AM

Quote:

Originally Posted by descendant_command

Your postfix looks to be working fine.
Your relay wants you to authenticate properly.
edit: Having an external alias's for local addresses is usually a bad idea, until your setup is working properly anyway.

Okay, thanks for the reply. I just thought this would be the better idea. Is it possible to configure postfix just for sending me some mails to an external adress without an external smtp-server? I don't need to get some mails on the server. I just want to send the output of logwatch. But it is still quiet confusing to me to configure it ...

GrayGhost93 · 07-21-2016, 03:29 AM

I configured the generic.db file as well. Seems it was not working because the FROM field was not right. Not sure, but it works now

descendant_command · 07-22-2016, 07:55 AM

Nice.

Quote:

Originally Posted by GrayGhost93

I don't need to get some mails on the server. I just want to send the output of logwatch. But it is still quiet confusing to me to configure it ...

ssmtp is a nice small easy alternative that I have used in such situations.