Ya that's touch to see without more tests, losing connection after helo might have something to do with the problem injecting in to postfix, maybe its not liking the response its getting and not finishing the full smtp commands. In your log, this line stands out: match_list_match: 10.12.0.101: no match
since its happening after the helo and that's where you are losing connection, might want to check if you have whatever is doing the match is configured correctly. What you're using to do that match I'm not familiar with, so maybe someone else can jump in to help there? On Mon, May 12, 2014 at 1:18 PM, Blake <scuba.bl...@gmail.com> wrote: > 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 >>> >
