Fedora c1 and SMTP connections using qmail

Zingaro2002 · 04-26-2004, 12:03 PM

Hi guys!
I have 2 boxes and I have successfully installed Fedora core 1 in both of them.

I have installed qmail on both machines (following 2 different guides) and even if installations seem good (using webmail I can read, write messages correctly) there must be some mistake:
I cannot send messages using e-mail clients (Outlook and Mozilla), always having "Your server has unexpectedly terminated
the connection" (on Outlook) or impossible to reach the server (on Mozilla)

(I have also tried every combination of smtp authentication)

When I download messages from server everything works fine!
(with both e-mail clients on both fedora machines I have no problem)

The strange thing is that with webmail I can do all normal operations (send e-mails, read received emails, manage e-mails, delete them and so on...)

Is a Fedora problem or qmail?
Or both?

I don't think it's related to relaying since the error message appears during connection to server and, moreover, any user of my domain cannot send e-mail even to himself!!!

How can I verify that port 25 is open and working correctly?
(firewall is disabled using Fedora utility)

Is it important that for this moment I have assigned a private IP of my LAN (192.168.0.181) instead of the public IP address corresponding to the domain name?
(of course my email clients are configured using 192.168.0.181 as POP and SMTP address)

Who can help me?

On both boxes with Fedora I have the same problem, but to install qmail I followed 2 different tutorials.

Thanks in advance!!!

david_ross · 04-26-2004, 12:45 PM

Do you get any error messages in the qmail logs when this happens?

To make sure that qmail is listening and not firewalled off - post the output of:
netstat -nlp
iptables -nL

Zingaro2002 · 04-27-2004, 02:51 AM

netstat -nlp
says

Code:

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name   
tcp        0      0 0.0.0.0:1026            0.0.0.0:*               LISTEN      3656/rpc.statd      
tcp        0      0 127.0.0.1:1027          0.0.0.0:*               LISTEN      3864/xinetd         
tcp        0      0 0.0.0.0:3306            0.0.0.0:*               LISTEN      3738/mysqld         
tcp        0      0 0.0.0.0:110             0.0.0.0:*               LISTEN      4821/tcpserver      
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      3636/portmap        
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      3665/httpd          
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      3848/sshd           
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      3810/cupsd          
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN      5210/tcpserver      
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      3665/httpd          
udp        0      0 0.0.0.0:1024            0.0.0.0:*                           3656/rpc.statd      
udp        0      0 0.0.0.0:864             0.0.0.0:*                           3656/rpc.statd      
udp        0      0 0.0.0.0:111             0.0.0.0:*                           3636/portmap        
udp        0      0 0.0.0.0:631             0.0.0.0:*                           3810/cupsd          
udp        0      0 192.168.0.181:123       0.0.0.0:*                           3879/ntpd           
udp        0      0 127.0.0.1:123           0.0.0.0:*                           3879/ntpd           
udp        0      0 0.0.0.0:123             0.0.0.0:*                           3879/ntpd           
Active UNIX domain sockets (only servers)
Proto RefCnt Flags       Type       State         I-Node PID/Program name    Path
unix  2      [ ACC ]     STREAM     LISTENING     3492   3889/gpm            /dev/gpmctl
unix  2      [ ACC ]     STREAM     LISTENING     3541   3923/xfs            /tmp/.font-unix/fs7100
unix  2      [ ACC ]     STREAM     LISTENING     4095   4255/ssh-agent      /tmp/ssh-seEy4182/agent.4182
unix  2      [ ACC ]     STREAM     LISTENING     3342   3738/mysqld         /tmp/mysql.sock
unix  2      [ ACC ]     STREAM     LISTENING     5005   4458/gconfd-2       /tmp/orbit-root/linc-116a-0-4e442085164c
unix  2      [ ACC ]     STREAM     LISTENING     5020   4444/eggcups        /tmp/orbit-root/linc-115c-0-4a11b6b83f375
unix  2      [ ACC ]     STREAM     LISTENING     3583   3952/dbus-daemon-1  /var/run/dbus/system_bus_socket
unix  2      [ ACC ]     STREAM     LISTENING     5110   4451/python         /tmp/orbit-root/linc-1163-0-4cd15e1076122
unix  2      [ ACC ]     STREAM     LISTENING     4549   4299/kdeinit: Runni /tmp/ksocket-root/kdeinit-:0
unix  2      [ ACC ]     STREAM     LISTENING     3755   4037/X              /tmp/.X11-unix/X0
unix  2      [ ACC ]     STREAM     LISTENING     4760   4366/artsd          /tmp/mcop-root/mserv-110e-408d3097
unix  2      [ ACC ]     STREAM     LISTENING     4562   4307/kdeinit: dcops /tmp/.ICE-unix/dcop4307-1082994828
unix  2      [ ACC ]     STREAM     LISTENING     4818   4401/kdeinit: ksmse /tmp/.ICE-unix/4401
unix  2      [ ACC ]     STREAM     LISTENING     3729   3971/gdm-binary     /tmp/.gdm_socket
unix  2      [ ACC ]     STREAM     LISTENING     4597   4315/kdeinit: klaun /tmp/ksocket-root/klauncherKAxrcb.slave-socket
unix  2      [ ACC ]     STREAM     LISTENING     5535   4711/esd            /tmp/.esd/socket

iptables -nL
says

Code:

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

david_ross · 04-27-2004, 12:28 PM

Well it seems to be running ok - try testing with a telnet connection - on the server itself:
telnet 127.0.0.1 25

You should get something like this (type the commands in bold):

Code:

Trying 127.0.0.1...
Connected to mail.yourhost.com.
Escape character is '^]'.
220 mail.yourhost.com ESMTP Tue, 27 Apr 2004 18:25:56 +0100
helo myhost.com
250 mail.yourhost.com Hello myhost.com [127.0.0.1]
quit
221 mail.yourhost.com closing connection
Connection closed by foreign host.

Zingaro2002 · 04-28-2004, 03:27 AM

When I do

telnet 127.0.0.1 25

it says

Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
Connection closed by foreign host.

Maybe this is due (I think) to SMTP Auth (I have applied patch to have stmtp auth, in fact, as I said above, in my e-mail client I try with user adn password).

Any idea?

maxut · 04-28-2004, 06:04 AM

what does it say in /var/log/qmail/qmail-smtpd/current ?

Zingaro2002 · 04-28-2004, 06:15 AM

it says

Code:

@40000000408f911636bca83c tcpserver: status: 1/30
@40000000408f911636bcbbc4 tcpserver: pid 6253 from 192.168.0.54
@40000000408f91163b671994 tcpserver: ok 6253 name.it:192.168.0.181:25 :192.168.0.54::3305
@40000000408f911705cb1204 tcpserver: end 6253 status 256
@40000000408f911705cb2974 tcpserver: status: 0/30
@40000000408f9118278cee6c tcpserver: status: 1/30
@40000000408f9118278d01f4 tcpserver: pid 6256 from 192.168.0.54
@40000000408f91182c4ac884 tcpserver: ok 6256 name.it:192.168.0.181:25 :192.168.0.54::3306
@40000000408f91182c4adff4 /var/qmail/bin/qmail-smtpd: error while loading shared libraries: libc.so.6: failed to map segment from shared object: Cannot allocate memory
@40000000408f91182c4aef94 tcpserver: end 6256 status 32512
@40000000408f91182c4afb4c tcpserver: status: 0/30

Well, it seems that there's an error loading libc.so.6... but why my server send e-mails correctly uing webmail intead of email clients?
Doesn't webmail use that library?

Can you help me to fix this problem?

nixinbarrie · 04-28-2004, 07:54 AM

Hi Zingaro2002,

Well I am no guru with qmail but I think I have seen this error message on this forum somewhere before.

When you did the install did you change the softlimit to 30000000 or higher in qmail-smtpd/run

If not or if you have not already tired just cd /var/qmail/supervise and than vi qmail-smtpd/run and change the softlimit to 30000000. If it is already 30000000 than try changing it to a higher number.

Don't forget to restart qmail when you save your changes.

qmailctl stop

qmailctl start

Hope this helps.

Take care,

Chris.

Zingaro2002 · 04-28-2004, 08:45 AM

YYYYYYEEEEEEEEEEESSSSSSSSSSSSSS !!!

IT WORKS!

I edited
/var/qmail/supervise/qmail-smtpd/run
changing from
softlimit -m 2000000
to
softlimit -m 30000000

Then qmailctl stop
and
qmailctl start

And everything is fine!!!

Thank you very much!

nixinbarrie · 04-28-2004, 03:28 PM

No problem. I am glad it worked for you.

Take care,

Chris.