Paul,

To me it seems that everything should work just fine but yet it fails.

Prior to during on debugging for the IPs in question the only error in the logs was the following.
smtp1 postfix/smtpd[15062]: connect from tnpsan1.(domain).com[10.12.0.101]
smtp1 postfix/smtpd[15062]: lost connection after HELO from tnpsan1.(domain).com[10.12.0.101] smtp1 postfix/smtpd[15062]: disconnect from tnpsan1.(domain).com[10.12.0.101]

Both the postfix and the server sending are on the same /24 network and on the same switch. I have checked for an ACL or other issue but there is nothing network related which I can find that I believe would prevent connection as desired. There is no local firewall, virus software or anything on the sending machine and selinux has been disabled on the postfix server without resolving the issue. The other item that seems strange to me is I have other machines in the same subnet which are able to send without issue.

Thanks,
Blake




On 05/12/2014 11:05 AM, Paul C wrote:
What's the error? 220 is a successful response to the greeting and 250
is success for the helo command. The only I see that could cause issue
is you are using an internal ip, 10.12.0.100, maybe causing some of
your dns stuff to fail on the lookup? All I can see at this point.

On Mon, May 12, 2014 at 12:48 PM, Blake <scuba.bl...@gmail.com> wrote:
Greetings,

I have a remote site with a postfix instance which has a few systems that
are receiving the following error.  Unfortunately I have been unable to
identify the cause and see no reason the system would be having the issue.

Sending machine Error
An Error occurred trying to test SMTP Mail Server smtp1.(domain).com: SMTP
Client send command : EHLO 10.12.0.100 - SMTP Server reply message : 220
smtp.(domain2).com ESMTP Postfix, return code : 220 - SMTP Client send
command : HELO 10.12.0.100 - SMTP Server reply message :
250-smtp.(domain2).com
250-PIPELINING
250-SIZE 25480000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN, return code : 250 - SMTP Client send command : QUIT - SMTP Server
reply message: 250 smtp.(domain2).com
221 2.0.0 Bye, return code : 250 - SMTP Client connection normal shutdown

Maillog/Postfix Log
  smtp1 postfix/smtpd[15211]: connect from tnpsan1.(domain).com[10.12.0.101]
  smtp1 postfix/smtpd[15211]: match_hostaddr: 10.12.0.101 ~?
cidr:/etc/postfix/mynetworks.cidr(0,lock|fold_fix)
  smtp1 postfix/smtpd[15211]: dict_cidr_lookup: /etc/postfix/mynetworks.cidr:
10.12.0.101
  smtp1 postfix/smtpd[15211]: dict_lookup: 10.12.0.101 = trusted
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 220
smtp.(domain2).com ESMTP Postfix
  smtp1 postfix/smtpd[15211]: < tnpsan1.(domain).com[10.12.0.101]: EHLO
10.12.0.100
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]:
250-smtp.(domain2).com
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]:
250-PIPELINING
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 250-SIZE
25480000
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 250-VRFY
  smtp1 postfix/smtpd[15211]: match_list_match: 10.12.0.101: no match
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 250-ETRN
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]:
250-ENHANCEDSTATUSCODES
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]:
250-8BITMIME
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 250 DSN
  smtp1 postfix/smtpd[15211]: < tnpsan1.(domain).com[10.12.0.101]: HELO
10.12.0.100
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 250
smtp.(domain2).com
  smtp1 postfix/smtpd[15211]: < tnpsan1.(domain).com[10.12.0.101]: QUIT
  smtp1 postfix/smtpd[15211]: > tnpsan1.(domain).com[10.12.0.101]: 221 2.0.0
Bye
  smtp1 postfix/smtpd[15211]: match_hostaddr: 10.12.0.101 ~?
cidr:/etc/postfix/mynetworks.cidr(0,lock|fold_fix)
  smtp1 postfix/smtpd[15211]: dict_cidr_lookup: /etc/postfix/mynetworks.cidr:
10.12.0.101
  smtp1 postfix/smtpd[15211]: dict_lookup: 10.12.0.101 = trusted
  smtp1 postfix/smtpd[15211]: disconnect from
tnpsan1.(domain).com[10.12.0.101]

Postfix Configuration
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
myhostname = smtp.(domain2).com
mydomain = (domain2).com
myorigin = $mydomain
inet_interfaces = all
inet_protocols = ipv4
mydestination = $myhostname, localhost.$mydomain, localhost
unknown_local_recipient_reject_code = 450
mynetworks = cidr:/etc/postfix/mynetworks.cidr
masquerade_domains = (domain).com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
debug_peer_level = 2
debug_peer_list = 10.12.0.100 10.12.0.101
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
smtpd_relay_restrictions = permit_mynetworks, reject
message_size_limit = 25480000
relay_destination_concurrency_limit = 10
virtual_alias_maps = hash:/etc/postfix/virtualalias


Reply via email to