Qmail Smtp Long Time Connection
Nov 8, 2007
I had Qmail installed and configure more than 2 years.
Last week, when I using Post Client (The Bat) try to send email, "Connection to Host" message shows Toooo long (aprox. 10 minutes)
POP3 connection working well.
OS RedHat Linux 2.4.25
[root@host smtp]# tail /var/log/qmail/smtp/current
@400000004733722622dcef34 tcpserver: status: 16/20
@400000004733722623095e34 -Table 'vpopmail.relay' doesn't exist-db_close() called!
@4000000047337226230be6a4 db_ping() is re-calling open_db!
@40000000473372262311f954 tcpserver: status: 17/20
@400000004733722623ad3b6c tcpserver: pid 6923 from 76.65.180.227
@400000004733722625a588fc -Table 'vpopmail.relay' doesn't exist-db_close() called!
@400000004733722625cf11cc db_ping() is re-calling open_db!
@400000004733722625fe863c tcpserver: pid 6926 from 76.65.180.227
@400000004733722d1b7434b4 tcpserver: end 6190 status 0
@400000004733722d1b744454 tcpserver: status: 16/20
and ps -aux return approx 10-15 lines with:
vpopmail 7330 0.0 0.1 2152 788 ? S 15:32 0:00 /usr/bin/tcpserver -v -R -S -p -x /etc/tcprules.d/tcp.smtp.cdb -c 20 -u 107 -g ...
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Nov 15, 2007
I have a problem to send email using qmail to 1 company.
eg : mail@mycompany.com to mail@companytwo.com
The problem happen just when i send email to this companytwo only....
when i run this command to check
tail -f /var/log/qmail/send/current
i found this error appear 'Sorry,_I_wasn't_able_to_establish_an_SMTP_connection'
How to i fix this problem....
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Dec 7, 2007
I am using Servint and I am looking for another provider with similar reputation/reliability. I have heard many good things about Zone.net on this forum, but they don't have any reviews older than a few months. Have they been around long, if so, why no early posts?
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Jan 7, 2008
I recently deployed an OpenBSD machine using pf to be a router/firewall for my home LAN, using NAT and sitting between our cable modem and our switch. It seems to work great.
But I just noticed an 'active' connection to a website... It's been open for 19 hours. 12KB of traffic has flowed over the connection, and the machine on the local end that initiated the connection is a laptop that's been offline for hours.
My question is twofold:
- Why hasn't this been dropped, after hours of inactivity?
- Short of restarting everything, is there a way to instruct PF to drop the connection / lose state information on it?
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Jul 11, 2007
I've got a 2.8 Dual Xenon with 2GB of ram. Taking a look at my "top" output I see the following:
Code:
18119 nobody 15 0 20812 20M 9764 S 0.8 0.9 0:05 0 httpd
3388 mysql 16 0 105M 97M 1908 S 0.7 4.8 95:08 1 mysqld
22225 nobody 15 0 18920 18M 9060 S 0.7 0.9 0:02 2 httpd
3391 mysql 16 0 105M 97M 1908 S 0.5 4.8 95:33 1 mysqld
13612 nobody 15 0 16872 16M 7192 S 0.4 0.8 0:05 3 httpd
21871 nobody 15 0 20712 19M 7768 S 0.4 0.9 0:02 2 httpd
I've got MySQL process running 95+ minutes. This isn't the first time it's happened.
I've seen it go as high as 120 minutes. The load average is 1.2. All my sites that use MySQL i.e. Wordpress blogs all run fine.
Looking at "MyTop" output everything looks normal:
Code:
MySQL on localhost (4.0.27-standard) up 37+01:40:24 [20:42:31]
Queries: 39.9M qps: 13 Slow: 211.0 Se/In/Up/De(%): 87/01/04/01
qps now: 9 Slow qps: 0.0 Threads: 20 ( 1/ 49) 64/04/09/09
Cache Hits: 27.5M Hits/s: 9.0 Hits now: 4.4 Ratio: 79.3% Ratio now: 73.3%
Key Efficiency: 100.0% Bps in/out: 571.7/961.9 Now in/out: 941.1/385.6k
Id User Host/IP DB Time Cmd Query or State
-- ---- ------- -- ---- --- ----------
1263533 root localhost mysql 0 Query show full processlist
1263663 gwz3phj_v localhost gwz3phj_va 8 Sleep
1262512 DELAYED gwz3phj_va 9 Delaye Waiting for INSERT
1263618 gwz3phj_v localhost gwz3phj_va 9 Sleep
1263658 gwz3phj_v localhost gwz3phj_va 15 Sleep
1263659 gwz3phj_v localhost gwz3phj_va 15 Sleep
1263617 gwz3phj_v localhost gwz3phj_va 22 Sleep
1263651 gwz3phj_v localhost gwz3phj_va 22 Sleep
1263642 gwz3phj_v localhost gwz3phj_va 37 Sleep
1263640 gwz3phj_v localhost gwz3phj_va 43 Sleep
1263636 gwz3phj_v localhost gwz3phj_va 52 Sleep
1263633 gwz3phj_v localhost gwz3phj_va 53 Sleep
1263630 gwz3phj_v localhost gwz3phj_va 55 Sleep
1263631 gwz3phj_v localhost gwz3phj_va 55 Sleep
1263624 gwz3phj_v localhost gwz3phj_va 74 Sleep
1263625 gwz3phj_v localhost gwz3phj_va 75 Sleep
1263623 gwz3phj_v localhost gwz3phj_va 78 Sleep
1263615 gwz3phj_v localhost gwz3phj_va 79 Sleep
1263621 gwz3phj_v localhost gwz3phj_va 85 Sleep
1263616 gwz3phj_v localhost gwz3phj_va 88 Sleep
Overall my server is running just fine but these odd long running MySQL process have me worried.
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Dec 17, 2007
Just wondering... When I set my A-name records in my Domain-provider control panel, it takes almost 24hours to take effect sometimes, yet other times it can be almost instant...
I was just wondering, from a technical point of view, why this is. Does anyone know?
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Nov 26, 2008
I ordered server and payed 48 hours ago by paypal. Why i do not have details for it?
In they website they wrote what they have 2 servers in stock!
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Feb 20, 2007
the error log shows nothing out of the ordinary.. but its taking about 2-3 minutes to start.. which before it would take about 10 seconds.
load is fine on the machine, free mem is fine also.
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Aug 2, 2007
Recently however it seems they're getting some bad press, most people are blaming growing pains.
As someone who's seen the before and after picture, i thought i'd chime in and actually put some positive notes on these boards, as I know these guys deserve more credit than this! It's one of those situations where if something goes wrong, people complain, if everything is right, not enough people speak up!
Server speed / specs:
one word: fantastic. i now have 2 VPSs with them - one in their new data center. I had moved the 2nd VPS from another host (also very well known on these boards, who I won't mention) where I had been having loads of issues regarding load and IO wait times. Load would spike up to 20+, server would crash, reboot, and this would happen 20+ times a day. Nothing critical on that server. Post-migration, using very very similar specs on futurehosting, and the load has been <0.10 since I started her up 3 days ago.
My current server sees load going up once in a while - during a large scale DOS attack last month the load only went up to 4, with over 1000 TCP connections. I only realized there was an issue as I checked one of my status scripts and noticed the enormous tcp count. I've recently moved to a new VPS on a new node, and load has been incredible, along with responsiveness.
No complaints at all on that front.
Network performance
Their old data center, softlayer, has much to be desired. There has been at least one outage every month so far which lasts in the hours duration. However, FH has made the very wise option of expanding out to a new datacenter and will hopefully slowly phase out softlayer, which has become quite pathetic. Connectivity wise though (speed/bandwidth) - no complaints.
Support
I remember getting a response within minutes months ago. However, that being said, months ago the customer service could only deal with the most basic of problems, and would escalate the issue if it was complicated, which would take time for a response.
FH did go through a growing pains phase a little while ago with regards to customer service - you wouldn't get a response too quick.
However now it seems they have begun improving. They are expanding their support base, and if you deal with the support guys you'll definitely be impressed by how dedicated and "hardcore" they are. Very recently I had a major issue with my server - it got compromised via root and someone wreaked havoc. Some script was installed that basically self-DOS'ed the server and basically killed it.
FH support instantly shut down the server and put me back up on my old server which I had migrated from only a week ago. They thoroughly went through and wiped clean my current server, fully bullet-proofed it and cleaned up the security of it all (something that was not a problem when they set it up - but rather my fault over time as I had disabled some very silly things I shouldn't have...) The guy working on the server, Jim, worked his *** off, pulled an all nighter (he was still responding to my tickets at 9am GMT, which was 4am his time - and I know he's not a night shift guy!). By the end of it all, he put me back onto my current newly-secured server, and was still revving to go, asking me what I wanted and to give him another challenge!
So, to sum this section--
good attitude: check
know-how: check
laziness: none.
I guarantee one thing - the vps company I just moved my 2nd vps from in this situation would not have spent an entire night rebuilding my server the way it was, but would've simply put me back on my old one week image, said "oh well, sorry, bad luck" and moved on.
All in all, my experience with these guys over the past couple of weeks (since the new data center opened) has been nothing short of positive, and I know they're rising out of the slight slump they had gotten themselves into.
I'll submit my URL to the mod to verify this post. And no, I don't work with FH
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Apr 27, 2008
I am using Qmail for most of my email accounts which is taking up a lot of my Singapore bandwidth which is extremely expensive. Anyway to configure such that POP goes to my Singapore servers, while I setup a pair of servers in USA for my SMTP needs?
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Mar 31, 2014
Panel-Version11.5.30 Update #38
BSDebian 7.4
Save Web Hosting Settings takes a long time. The Domains (Apache Server) are not reachable for 36 seconds.
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Apr 21, 2008
Can i use Qmail or Sendmail or Postfix with WHM other than exim mail SMTP.
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May 13, 2014
I want to add a new port for SMTP (1024) as a client's ISP block 25, 587 and 2525. I tried following this guide: [URL] ... but it doesn't work with Parallels Plesk Panel 11.5 ...
How to add an additional SMTP port to Qmail in Plesk 11.5?
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Jun 16, 2015
We are seeing intermittent slow responses from SMTP on a RHEL6 server running Qmail on Plesk 11.5. The response is being measured from a remote Zabbix server.
The response time seems to be slow (>10s) for a period of 2-3 minutes and then returns to normal (<1s). All other services continue to be ok during the period of slowness.
The server_args line in /etc/xinetd.d/smtp_psa already contains "-Rt0" and all the DNS servers in /etc/resolv.conf are resolving properly.
From looking at the maillog file the server was receiving about 35 SMTP connections a minute at the time of the slowdown. We have the server configured to use 2 x RBL's.
I wonder if we are hitting a limit on the maximum amount of SMTP connections. The file /var/qmail/control/concurrencyincoming does not exist so, according to the Qmail manual, there shouldn't be a limit on the number of incoming SMTP connections.
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May 26, 2014
Just got a strange problem on my plesk server. (11.0.9)
Qmail isn't working...
In Home>Tools & Settings>Services management SMTP "Server (QMail)" is stoppped.
When I try to start it, it say "Information: Please allow for some time for the service to start." but never starts...
In command line i try to restart it with "service qmail restart" and it says "OK" also if i run "service qmail status" it says "qmail-send (pid 2880) is running..."
but, it really doesn't work... queue is getting bigger and smtp isnt responding...!
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Jun 11, 2015
We had many backups stored on our Plesk 12 server about 51 GB in total.
After reducing the backups back to 10 GB by removing old backups through the Backup Manager.
The issue is that Health Monitor still reported that there was low diskspace displayed by color yellow. And it look Health Monitor over 16 minutes to change the alarm level from Yellow to Green
However the statistics at the specific subscription still present the Backup usage of 51 GB's whilest they are no longer there.
What can i do about this in order to speed up the synchronization?
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May 19, 2015
Since 15.05.2015 smtp experiencing problems.
Smtp service (qmail) stops responding on port 25:
# time telnet localhost 25
Trying 127.0.0.1...
quit
quit
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
quit
quit
Connection closed by foreign host.
real 4m10.629s
user 0m0.000s
sys 0m0.002s
After server restart or sometimes apache stop or ixnetd restart its responding for a some random time, and then again it stops to respond. Plesk panel show it as stopped but qmail itself running in memory, and does other its work, it just stops responding at port 25, or responds with a huge delay.
I've tried change it to postfix, reconfigured with mchk, repaired with repair.sh -r, disabled and uninstalled parallels antivirus, antispam, dnsbl, disabled firewall, disabled smtp lock. Checked apache, dns. Enabled submission port which works when 25 port doesnt, but i need working 25 port.
Nothing solves problem, its just stops responding after some random time. There is no errors on maillog.
I think this problem occured after recent plesk microupdate, because i didn't do anything to server configuration in last months.
This article says it might be dnsbl [URL] .... but it disabled(from plesk panel) on my server, maybe there is way to focefully kill any relation to dnsbl?
Plesk info:
OS Red Hat Enterprise Linux Server 5.9 (Tikanga)
Panel version 11.5.30 Update #50, last updated at May 18, 2015 05:21 PM
The system is up-to-date; last checked at May 17, 2015 10:56 PM
update: xinetd restart is definitely brings smtp alive, but it goes off after random period of time (5min ~ couple hours)
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Jul 10, 2007
we send mailing tih php through smtp connection
All ok in the last 5 month
But now when set more than 1000 emails x sessione (any 10 minutes) we get this error:
"421 too many messages in this connection"
There aren't new configuration on exim.
So we have set 1000 emails max and lower minutes in the session (5) but there is another problem:
Warning: fsockopen() [function.fsockopen]: unable to connect to mx.***.com:25 in /home/***.php on line 47
Connection refused (111)
Can be too lower 5 minutes?
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Jul 9, 2008
I have been having great trouble sending mails from my local Thunderbird/Windows client to my Debian/Exim-server via TLS/SMTP.
I am no expert on TLS and SMTP, but I managed to create a server certificate and set up a secure (TLS) connection more than a year ago, and it has been working fine until it suddenly stopped working a couple of weeks ago.
Sending to external addresses from web pages still works fine, the problem seems to be in the SMTP connection. If I try to "telnet xxx.xxx.xxx.xxx 25" I get no reply whatsoever (it seems to connect but it just gives me a blank screen with a blinking cursor) and I am wondering if there is a firewall issue or if I am simply not running the right daemon to listening for incoming SMTP connections...
POP continues to work fine with teapop/stunnel enabled.
I am running Exim 4.63-17 on Debian Etch. I configured Exim to be of the type "internet site; mail is sent and received directly using SMTP"
==============================
Firewall shouldn't be a problem (?):
debian:~# 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
==============================
I really don't know what to do. I have tried running:
tail -f /var/log/daemon.log
Which responds when I access my mail using POP but not when I try to send using SMTP.
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Dec 14, 2008
Message not sent. Server replied: Connection timed out 110 Can't open SMTP stream.
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Jun 3, 2008
i have this weird problem of emails not gettign delivered and i am hosting with theplanet. Every email is sitting on the queue and not delivered.
i checked with dnsreport and it says
Timed out [Last data sent: [Did not connect]]
and my exim_mainlog shows
R=dk_lookuphost defer (-1): host lookup did not complete
2008-06-03 04:49:59 SMTP command timeout on connection
i have restarted exim, checked firewall and still i am unable to fix my problem!
update:
i again checked with dnsreport and my nameservers are failing
NS FAIL NS A timeout occurred getting the NS records from your nameservers! None of your nameservers responded fast enough. They are probably down or unreachable. I can't continue since your nameservers aren't responding. If you have a Watchguard Firebox,
it's due to a bug in their DNS Proxy, which must be disabled (31 Jul 2006 UPDATE: several years after being informed of this, there is a rumor that there is a fix that allows the Watchguard DNS proxy to work).
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Dec 1, 2014
My hosting provider recently (and without any warning) decided to block outgoing connections to port 25. What this means is for any client/domain/email address that has a forwarder setup, the mail will never reach its destination because the connection to the other server always times out. The error logs look like this:
postfix/smtp[8414]: connect to ASPMX2.GOOGLEMAIL.COM[74.125.131.26]:25: Connection timed out
postfix/smtp[8421]: connect to aspmx2.googlemail.com[74.125.131.26]:25: Connection timed out
postfix/smtp[8425]: connect to aspmx3.googlemail.com[64.233.186.26]:25: Connection timed out
postfix/smtp[8423]: connect to aspmx4.googlemail.com[64.233.166.26]:25: Connection timed out
I haven't been able to find a way to force relay to 465. Or maybe I shouldn't have relay on at all and do this another way?
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Aug 24, 2007
i have a fedora core 4 server.. and i want to install a good Qmail email server to host some emails of diferent domains..
On searching i found that Qmail should be install with those associated programs/system for a better server :
Qmail itself
EZmlm and EZmlm-idx
Autoresponder
Vpopmail
VQadmin
maildrop
QmailAdmin
Courier-imap/imaps with Courierpassd
Squirrelmail web mail program ......
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