OpenSUSE Network :: Sendmail - Large Messages Only Queueing?
Jun 24, 2010
I've got a strange sendmail problem I've never come across before...Messages less that 2500 lines (approx 169kb) are sent correctly - anything else goes straight into the queue and is never delivered. The server sits in a intranet, is not connected to the outside world, and forwards its mail to a smart host.All configuration has been done through yast, so there are no unusual settings. I've run sendmail on SuSE from version 6 upwards, and this is the first time I've come across this - it's driving me potty
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Dec 25, 2008
I am running Fedora 10 and working with sendmail to send messages via various scripts. I've gotten everything working and under normal circumstances the messages get delivered as expected. However when I reboot my computer, all mail designated for sendmail gets hung up in the queue. I've confirmed that sendmail is set to start on boot (runlevel 5) and I've checked for the existence of sendmail processes (they indeed exist after boot).
However, if I restart the sendmail daemon manually, everything in the queue gets sent and I get flooded with a backlog of emails from the past several hours (or days). Is there a reason or common problem as to why sendmail doesn't actually process mail after startup and why manually restarting the process seems to solve the problem? Is this a bug in sendmail? /var/log/maillog doesn't reveal anything out of the ordinary.
Here's the pertinent info:
sendmail-8.14.3-1.fc10.i386
sendmail-cf-8.14.3-1.fc10.i386
kernel 2.6.27.7-134.fc10.i686
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Mar 19, 2010
I have to configure sendmail to send messages only and not receiving any mails on a linux server when the mail server is on another server.how to configure sendmail?
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Mar 26, 2010
I've started having problems with large file downloads. A download will start and after a while freeze. The downloads window reports the correct connection speed and gives an estimated time to complete, but it stays frozen. Small downloads, torrents and surfing are not affected. I can do everything else normally even when the download is frozen. I've checked with my ISP and everything with my equipment checks out.
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Jan 2, 2011
When accessing an NFS mount for a large (200MB+) file transfer, the transfer starts rapidly, then becomes slower and slower until it hangs. On several occasions, it has frozen the client machine. Both client and server are set to default to nfs version 3. Slowdown and hang also occur when connecting to FreeBSD NFS mounts.
Presumably (I hope), there is some sort of configuration for the client that needs to be set. what should be changed in the configuration? This worked out of the box in OpenSUSE 11.0.
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Feb 2, 2010
I am brand new to sendmail. I have a web application running on APACHE2. I'm told that it uses a PHP mail function to send emails for notifications. I configured my php.ini to use sendmail by adding the following line:
sendmail_path= /usr/sbin/sendmail -t -i (I've tried it without the i as well)
As far as the sendmail configuration is concerned, I used the GUI interface provided in the KDE environment (labeled Mail Transfer Agent). I inputted my outgoing mail server's IP address and login information. I also unchecked TLS since my mail server does not use that.
The problem is that no email ever gets sent. The web application states that the email was successfully sent. But I think its because it hands the email to PHP (leaving the responsibility to PHP)...then it believes the email is sent. My mail server uses plain text for authentication. Im not doing anything special with it. I told my mail server to accept connections from my linux box. I also checked my mail server's logs and see that no record of any connection from my linux server is logged.
So it seems my linux server isnt even communicating with my mail server. Both boxes are on the same network. My linux box can ping my mail server just fine. Firewall is disabled. How do I correctly configure sendmail to use an outgoing SMTP server to send emails. And how do I verify that setting works without using the web application I installed? (I want to verify whether or not the issue is with sendmail or the web application). Where do I find sendmail's logs so I can check to see why it's not hitting my mail server?
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Sep 2, 2010
Messages are stuck in my server's /var/spool/mqueue/ folder beyond the lifetime I have specified in confTO_QUEUERETURN (5d). Any idea why this could be? The file permissions appear fine; files in the mqueue folder show rights of: Code:-rw------- 1 root smmspThis is causing an issue because the queues are slowly getting larger and larger. I'm seeing the queue size consistently growing. maillog shows entries like: Code:grew WorkList for /var/spool/mqueue to 28000Just thinking outloud -- could the queue runner not be completing it's job in time? Maybe I could check with time sendmail -q
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Jun 15, 2011
We have a sendmail server located in a DMZ that has normally been able to send SMTP traffic to whatever destination is listed in the address of any given e-mail message. A recent change in network configuration has introduced an e-mail gateway that all servers need to send smtp traffic to in order for the messages to go out to the Internet.
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Jun 29, 2011
I'm trying to integrate sendmail and openLDAP together. I've followed the guide in O'Reilly's LDAP book and my lookups are good. I think my problem is virtual users. What I'm trying to accomplish is that if an email is sent to joe@host.tld and there is an entry in LDAP for joe then it'll be accepted. Right now, it'll only accept emails only for system users. Below is my sendmail.mc (most comments removed)
Code:
divert(-1)dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
OSTYPE(`linux')dnl
dnl ## I have a real one
define(`SMART_HOST', `my.smart.host')dnl
dnl #
define(`confDEF_USER_ID', ``8:12'')dnl
[Code]...
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Sep 14, 2011
I have been running Senmail on SuSE 11.1 for the last few years with no problems.Since installing SuSE 11.3 a few months ago I have been having problems getting Sendmail to send to some (only a few) servers.If I disable the firewall # SuSEFirewall2 stop.I can send successfully using # sendmail -v -q, or # sendmail -v -qIxxxxx.When I re-enable the firewall I will start to get the timeouts/temporarily unavailable messages again (but as mentioned above, only for some servers) even though I can successfully telnet these servers when the firewall is on. When I disable the firewall the delayed messages can again be sent.Has anybody any ideas what I need to change (presumably in the Firewall) to get things working correctly? 'SMTP with sendmail' is already selected under 'Services to Allow' under YaST Firewall->Allowed Services..
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Mar 23, 2010
In the firewall, I opened port 5900 for TCP traffic. Now the console is displaying packet information whenever a connection is made. Why does it send a message to stdout/stderr for an allowed connection? How can I stop it? Logging level is set to critical only, and not-accepted packets should only be logged for the internal and DMZ zones.
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Feb 26, 2011
I am currently facing a problem with rsync (or maybe ssh, I don't know yet). I have daily backups that are done via cron using rsync from my computer (client) to a NAS. And systematically during these backups my computer completely freezes (no remote login possible, nothing), so I have to hard reboot. As you might imagine, I cannot do this every day. In /var/log/messages there is just a line like that :
Feb 26 17:23:53 eggplant rsyslogd: -- MARK --
right before the hang. The rsync worked well before and I don't really know what changed in my system config. In /var/log/rsyncd.log I sometimes (but not every time) I get :
2011/02/26 16:39:19 [13229] rsync error: received SIGINT, SIGTERM, or SIGHUP (code 20) at rsync.c(543) [Receiver=3.0.7]
I aldready update the default rsync from opensuse 11.3 to 3.0.7.7, but it does not help. How can I at least know what is going wrong? I am trying to track down the problem but don't know how to start. Last also a log of the rsync command (client) running ssh in verbose using the command "rsync -av --delete --timeout=180 -e "ssh -v -p xxxxxx -i /root/.ssh/rsync-key_eggplant" /mds root@xxxxxxxx:/volume1/autoBackup/eggplant":
OpenSSH_5.4p1, OpenSSL 1.0.0 29 Mar 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
[code]....
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Jul 19, 2011
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Mar 22, 2011
I have gone through a good number of distros all the way back to Slackware but I'm struggling to get my brain moving in the right direction again. I am working to enable sendmail and, from what I've read, it appears that newer version of sendmail are installed with milter but I can't seem to locate this. I am running v11.4 so I'm wondering if this is just not the case? I don't have a problem reconfiguring/recompiling the sendmail conf files but would rather not if it's not required. For the record my ultimate goal is to have the spamassassin and clamav milter's installed and using the home server as our primary email.
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Sep 14, 2010
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Mar 31, 2010
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Jan 31, 2010
I've got a server set up with Debian. The problem is that my ISP doesn't allow usage of port 25 (as I understand a lot of ISP's don't).I have PHP scripts hat use the mail() function to send e-mails through the Sendmail application.So, my question is: How can I relay messages sent to sendmail to an external SMTP server (like Google Mail, for example)? Would this be easier to do in the PHP configuration, or on the Sendmail side of things?I've used PEAR extensions in PHP to achieve this before, but scripts downloaded from the Internet generally just use the basic mail() function, and it would be a real pain to modify them all.
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Mar 25, 2011
I suspect this is an initial configuration bug. All firewall logs seem to be going to all
three files. That causes a lot of clutter in the log files, and makes it difficult to see whether there are any serious problems being logged.
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Mar 9, 2010
i have two computers on a wireless network and the system and lately dmesg is crowding with this message (or similar): SFW2-INext-DROP-DEFLT IN=ra0 OUT= MAC=01:00:5e:00:00:01:00:13:f7:e4:5a:49:08:00 SRC=192.168.2.1 DST=224.0.0.1 LEN=36 TOS=0x08 PREC=0x80 TTL=1 ID=30784 OPT (94040000) PROTO=2 what it means? can it be related to my network being sort of slow lately?
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Apr 7, 2011
I am totally new to Linux and have just installed ubuntu 10.10. After configuring the network interface via dhcp I started getting these messages that come in so frequently I can't configure anything else.
[87.186415] Stack:
Why I am getting this messages and more importantly how do I get rid of them.
The installation is on a VM on Hyper-V.
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Feb 17, 2010
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After trying it almost half a dozen times I got really annoyed and left it hung and went to bed. Next morning when I checked a message box saying "file too large to write" has appeared.
I am very annoyed. I desperately need that file. It's an ISO image and it is not damaged at all, it copies well to any windows system. Also, I have sufficient space on the drive in which I am trying to copy that file.
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Jul 5, 2010
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Apr 22, 2010
I have 2 ASUS Boxes (one with 8GB, one with 4GB) When both mtus are set at 7200, using scp to copy a 56MB file takes 2:06. If I reduce either mtu to 1500, the speed is 2 seconds. I'm wondering if this is some kind of kernel bug or driver bug or what. For the moment, I've lowered the mtu to 1500 to get the performance out of the machines, but find it interesting that what should make it faster is actually slowing down. Where should I post this to get it looked at? Is anyone else seeing it.I see a similar performance issue with smbclient too.
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Jun 6, 2010
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Jul 6, 2009
My goal is to have users(Unix Users like root on host1) use evolution /sendmail to send and receive emails between users( Unix users either from host1 or any other host on n a private network. The network is a private network with a few servers without any connection to Internet and no DNS. They resolve one another by /etc/hosts. with smtp configured am able to send and receive emails on one machine(host1) from unix user abc on host1 to user xyz on host1 and vice versa. the commad i used to test is host1@abc #echo "this is a test mail" |mailx zyx@host1 But when i tried sending from user abc on host1 to user xyz on host2 its giving error for DNS unable to resolve hostname.
the commad i used to test is host1@abc# echo "this is a test mail" |mailx zyx@host2 create a simple sendmail config so that i can send mails between multiple hosts using unix usernames within one network. I can use one of the server as mail server and rest as clients. I dont want to configure any other softwares for pop or imap access. I want to keep it simple and use evolution on the clients to send emails between one another on the private network without internet.
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Oct 7, 2010
I have a RHEL 4 server delivering long messages to several RHEL 4 clients. They work fine.I am trying a RHEL 5 client running the same client application as the RHEL 4 clients. The RHEL 5 client looses most messages. have tried with two other clients running CentOS 5 with similar results. The server indicates write failure or blocked. The messages are typically 50 kilobytes. I have changed many parameters in sysctl.conf Has anyone encountered similar problems?
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Feb 22, 2011
I have a rather interesting issue. I have set up a home network and a fedora 14 box as a server. I am running the version of Sendmail that came with fedora 14. I wrote a PHP script that changes http access passwords(to give authorized access to the outside by multiple users) once a week and emails the users their new passwords. It also finds out my WAN IP (because it is dynamic, and I am using a Linksys router with NAT), and E-Mails users when this has changed along with the new access password. I have Sendmail set up so that it should log on to my websites mail server (smtp.example.net) and send the email through it.
The problem I am having is that I have set up my home server with an internal domain like exampledomain.home, but the wan IP reverse lookup returns xx.xxx.xxx.xxx.static.xxx.xx.charter.com, so that when my sendmail server connects to my smtp server for my website it gives "EHLO server.exampledomain.home" then my smtp server rejects it because the connecting IP (WAN IP) resolves toxxx.xxx.xxx.xxx.static.opls.la.charter.com gives a host not found error. Or it gives the error because server.exampledomain.home is obviously not a valid host name on the internet. I was hoping someone out there had some insight on how I could get around this without editing or adding any DNS entries to my websites domain. I would also like to avoid getting a static IP for my house as it is more expensive. I thought about making a dynamic DNS entry with dyndns.com and then making Sendmail use that host name. I dont know how to trick sendmail like that though.Here is a copy of my sendmail.mc (scrubbed of course).
divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
[code].....
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Mar 23, 2010
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Dec 16, 2008
I'm having intermittent trouble with my network card.
It always makes kernel messages like the following:
Code:
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Jul 3, 2010
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