HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials

HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials (http://www.howtoforge.com/forums/index.php)
-   Installation/Configuration (http://www.howtoforge.com/forums/forumdisplay.php?f=4)
-   -   trouble with postfix install (timing out from client) (http://www.howtoforge.com/forums/showthread.php?t=60189)

BobSD 10th January 2013 23:14

trouble with postfix install (timing out from client)
 
I have just outfitted a basic server (Ubuntu 12.04 LTS /Precise Pangolin) and have installed Postfix and Dovecot, based on the Ubuntu manuals.

https://help.ubuntu.com/community/Dovecot
https://help.ubuntu.com/community/Postfix

Postfix gets mail out of the box to my gmail account, e.g.:

Code:

sendmail [redacted]@gmail.com < /etc/motd
Testing remote access with the open source client for Eudora, I can successfully download email, so Dovecot/POP3 seems to be functioning.

However, I cannot seem to get Eudora to successfully get mail from the client to the box or beyond. Depending on the security/port config I use, it generally times out.

I seem to be able to get access via the local terminal, and remote shells, such as:

Code:

$ telnet lists.teachers.net 25
Trying 50.56.184.186...
Connected to lists.teachers.net.
Escape character is '^]'.
220 lists.teachers.net ESMTP Postfix (Ubuntu)
ehlo lists.teachers.net
250-lists.teachers.net
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
quit
221 2.0.0 Bye
Connection closed by foreign host.

When Eudora tries to connect, i don't see any activity in the /var/log/mail/log or /var/log/mail.err , which I guess means those aren't the relevant logs or there is no activity to report.

I tried setting Eudora to use STARTTLS, SSL/TLS, and none, but they all time out. How would I go about troubleshooting this? I haven't set up any firewall rules:

Code:

$ sudo iptables -L
Chain INPUT (policy ACCEPT)
target    prot opt source              destination

Chain FORWARD (policy ACCEPT)
target    prot opt source              destination

Chain OUTPUT (policy ACCEPT)
target    prot opt source              destination

Code:

$ sudo netstat -tap
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address          Foreign Address        State      PID/Program name
tcp        0      0 *:submission            *:*                    LISTEN      4112/master
tcp        0      0 *:pop3                  *:*                    LISTEN      3210/dovecot
tcp        0      0 *:imap2                *:*                    LISTEN      3210/dovecot
tcp        0      0 *:ssh                  *:*                    LISTEN      564/sshd
tcp        0      0 *:smtp                  *:*                    LISTEN      4112/master
tcp        0      0 *:imaps                *:*                    LISTEN      3210/dovecot
tcp        0      0 *:pop3s                *:*                    LISTEN      3210/dovecot
tcp        0    300 lists.teachers.net:ssh  99-95-169-159.lig:55464 ESTABLISHED 1433/sshd: listman
tcp6      0      0 [::]:submission        [::]:*                  LISTEN      4112/master
tcp6      0      0 [::]:pop3              [::]:*                  LISTEN      3210/dovecot
tcp6      0      0 [::]:imap2              [::]:*                  LISTEN      3210/dovecot
tcp6      0      0 [::]:ssh                [::]:*                  LISTEN      564/sshd
tcp6      0      0 [::]:smtp              [::]:*                  LISTEN      4112/master
tcp6      0      0 [::]:imaps              [::]:*                  LISTEN      3210/dovecot
tcp6      0      0 [::]:pop3s              [::]:*                  LISTEN      3210/dovecot

Code:

$ dig mx lists.teachers.net

; <<>> DiG 9.8.1-P1 <<>> mx lists.teachers.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22244
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;lists.teachers.net.            IN      MX

;; ANSWER SECTION:
lists.teachers.net.    300    IN      MX      100 lists.teachers.net.

;; AUTHORITY SECTION:
teachers.net.          2057    IN      NS      dns1.stabletransit.com.
teachers.net.          2057    IN      NS      dns2.stabletransit.com.

;; ADDITIONAL SECTION:
lists.teachers.net.    300    IN      A      50.56.184.186
dns1.stabletransit.com. 77665  IN      A      69.20.95.4
dns2.stabletransit.com. 77741  IN      A      65.61.188.4

;; Query time: 830 msec
;; SERVER: 72.3.128.241#53(72.3.128.241)
;; WHEN: Thu Jan 10 14:08:34 2013
;; MSG SIZE  rcvd: 155

How can I troubleshoot this, maybe from a remote machine? What logs might shed light? What other info would be helpful here? Thanks!

falko 11th January 2013 17:00

Are there any other firewalls or routers that might block access on POP3 or IMAP?

BobSD 11th January 2013 19:17

I figured it out, apparently SBC blocks port 25 on outgoing u-verse traffic. I enabled port 587 and immediately was able to access to smtp service from Eudora. Thanks for your help! (Do I mark this "solved" or something?)


All times are GMT +2. The time now is 18:34.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.