Server :: Sendmail Not Reading Default Sendmail.cf ?
Apr 1, 2010
I recently modified sendmail.cf to use a third party SMTP server to send emails. It works great. But when I run sendmail from the command line, I have to specify the -C flag and force feed it the location of my sendmail.cf, or else it doesn't work.
So in other words, the following works great:
However, if I don't specify the -C flag, sendmail doesn't consider what's in the sendmail.cf and barfs:
I don't run sendmail as a daemon. I'm only using it to send emails. I know my modifications of sendmail.cf are correct because it works perfectly when I use the -C flag. I searched my disk to see if I could find another sendmail.cf on the machine and only the one in /etc/mail came up.
Why sendmail is not reading my sendmail.cf?
I'm running Sendmail version 8.14.2 on Fedora Core 8.
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Nov 1, 2010
I am using webmin for my daily tasks. I have fedora 13, whenever I click on ''Sendmail M4 Configuration'' or Outgoing Addresses (generics)'' I get the following error message
Quote:
The Sendmail M4 configuration base directory /usr/share/sendmail-cf was not found on your system, or is not the correct directory. Maybe it has not been installed (common for packaged installs of Sendmail), or the module config is incorrect. I read documentation at sendmail.org, it seems that structure of directories for send mail has been changed in version sendmail-8.1.4 shipped with FC13. In webmin config module we have
Quote:
Sendmail M4 base directory = /usr/share/sendmail-cf
which is not there. I did a locate / sendmail-cf on the command line, it finds nothing
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Jan 15, 2010
I have running sendmail 8.13 on my red hat enterprise linux 5.1, but i have a problem. I can send a mail from my line command terminal to hotmail, gmail, yahoo and any of these, but i can't send mail to my own domain (mydomain.com), when i wrote a mail i get a reply from MAILER-DAEMON@localhost.localdomain that says that the message had pemanent fatal errors and shows as user unknown the mail was suposed to recive the message. For example, if i send one mail from user1@mydomain.com to user2@mydomain.com the user2 does not recive any mail, but that does not happens if user1 sends a mail to any hotmail address or gmail or any other. Besides i also can't recive on my server any mail to user1@mydomain.com or user2@mydomain.com (for example) comming from gmail.
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Jul 13, 2010
I have been trying to set up ssmtp so I can send email using Gmail's ssmtp servers. However, when I try to send mail (using mailx), I get the following message:
Code:
Can't send mail: sendmail process failed
Here's the last line from dmesg (the only one applicable, according to the timestamps and message content):
Code:
[484114.608378] sendmail[17975]: segfault at 0 ip b7dbbbf3 sp bfb0dc4c error 4 in libc-2.11.2.so[b7d44000+14e000]
Here's my ssmtp.conf:
Code:
#
# /etc/ssmtp.conf -- a config file for sSMTP sendmail.
#
[code].....
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Jun 15, 2011
I have bees assigned a problem which states that :
sendmail-2: Wrong number of instances of process sendmail:, expected instances equal 1 but found 0
THats it...what exactly this means and how should i proceed for solving this problem...
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Sep 5, 2010
I have installed postfix and dovecot on my server and thought postfix will not only take SMTP connection from my e-mail client like Outlook, but also handles "mailx" commands from the server. However, it looks like sendmail is still responsible for sending mails from "mailx". I tested this by turning it on/off using "service sendmail stop" and "service sendmail start". Mails sent using "mailx" will only be sent when sendmail is up. When I did "yum info sendmail", it lists sendmail as an installed package. Is is safe to remove sendmail by running "yum erase sendmail", and let postfix handles "mailx" also?
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Aug 17, 2011
I wanted to install sendmail 8.14.5 vesion so rather than upgrading it i deleted all sendmail files and installed the sendmail 8.14.5 tar file. I followed every steps of INSTallation except associated sendmail utilities (makemap, mailstats,etc).But when i try to see rpm -q sendmail,i get the reply:
package sendmail is not installed
I have centos 5.4 vesion.
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Jan 20, 2010
i have sendmail & NIS working properly but i donot have centeralized authentication i.e. server user is not able to login from client Desktop and i donot get Global address book of users in mail client when accessing mail.
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Feb 3, 2010
I'm having a trouble with sendmail on Centos. When I check the maillog, every emails is sent, but when i check my mail browser, it didn't receive the mail. This problem happens with an email address only. (the red email was not received ) This is the maillog
[Code]....
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May 9, 2011
I'm having trouble getting my mailertable to work..We have this stupid problem on our internal network where DNS and MX records aren't really set up 100 percent correctly. Getting permission to change it, and test it are way beyond the scope of this question; So I just want sendmail to ignore what's in DNS and fire messages straight to our internal relay server (which works for dozens of other clients) - but it's not doing that. You can see that it's rewriting the addresses to user@www.domain1.com because the parent *.domain1.com is a cname to URL...(someone did this as a poor mans redirect. So if a user tries to go to a subdomain that doesn't exist, they go to the root website instead..
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Aug 11, 2010
I have a CentOS server, and am using Sendmail to relay for various domains. However, I also need to have users send their outgoing mail via this server. I want to have them enter a username and password in Outlook, Thunderbird, etc in their smtp server settings. I currently have this set up via an Exchange server, but I cannot get it to work with Sendmail. I know little about Sendmail, and have done all the config via Webmin, which has worked fine as far as relaying domains. But even though I have added the CentOS user account for the smtp relaying, the clients mail apps give an error saying relaying denied.
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Feb 11, 2010
l have been trying to enable masquerading in sendmail. I've started from scratch. Here's what I did:
1.My Mail Server name is "ids.com" and local hostname is "server"
2. When I send the mail from my user to other user. The mail goes with user@server
All this allows me to send mail from all of my computers. Now, to get masquerading:
3. I have MASQUERADE_AS(`ids.com'), MASQUERADE_DOMAIN(`ids.com'), and FEATURE(`masquerade_entire_domain'). I also added "ids.com" to /etc/mail/local-host-names to be able to receive mail addressed to that domain.
This masquerades mail originating on the server, but still the mail from the other computers has a "From:" line of the form user@hostname.
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Feb 5, 2010
possible to run Qmail and Sendmail on one server, both on another port? I need qmail for Plesk and sendmail for OpenEMM Now qmail is working for plesk, but if I install qmail ( I tried install it also from source) and try to run sendmail, I still get this error: Starting sendmails: listener sendmail: illegal option -- q chich probably means, that there isnt full sendmail version.
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Mar 17, 2010
I'm configuring sendmail to send mails only by setting the define(SMART_HOST, full smtp server address) and DAEMON_OPTIONS settings.
However when trying to regenerate sendmail.cf through the following commands: m4 /etc/mail/sendmail.mc> /etc/mail/sendmail.cf
The following errors occur: /etc/mail/sendmail.mc:10:m4: Cannot open /usr/share/sendmail-cf/m4/cf.m4: No such file or directory.
When checking the path the following path does not exists at all for sendmail-cf/m4
Where can i find the cf.m4 file? or what solution to apply so the sendmail.cf is regenerated?
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Apr 24, 2011
I have a Centos 5.5 Server, Servername is CentOS1. It has a Forum and a HelpDesk. The Help Desk software SENDS and acknowledgement to the user and emails to all the people on the support desk. Users can reply to emails only by accessing the helpdesk NOT by mail. Thus the server is configured to only SEND mail and not to receive any mail at all.
Mail Server is Sendmail.
Hosts file reads : -
# Do not remove the following line, or various programs that require network functionality will fail.
127.0.0.1CentOS1.tech.xxxxx.com CentOS1 localhost.localdomain localhost
::1localhost6.localdomain6 localhost6
There is NO MX Record because this server receives NO mail, it's send only. Unfortunately, the mail it sends has a From Header which is @CentOS1.tech.xxxxx.com. I want it to send from @xxxxx.com. I've read all the howtos on Masquerading and I've tried many, many things, but with the same results. It will NOT change the From. I had it working perfectly a long time ago with a SuSE server, but I can't for the life of me remember what I did. I know I also battled a bit.
The last few lines of sendmail.mc read : -
LOCAL_DOMAIN('localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
dnl MASQUERADE_AS('xxxxx.com')dnl
dnl FEATURE(masquerade_envelope)dnl
dnl FEATURE(masquerade_entire_domain)dnl
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(CentOS1.tech.xxxxx.com)dnl
dnl MASQUERADE_DOMAIN(CentOS1)dnl
dnl MASQUERADE_DOMAIN(tech.xxxxx.com)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
dnl MAILER(cyrusv2)dnl
I've tried each one of the MAQUERADE_DOMAIN in turn, none of them work and yes, I have remade it.
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Feb 11, 2011
After configuring sendmail in Linux I am able to send a mail once only. After that whenever I try to send a mail like this:
telnet localhost.url 25
EHLO localhost.url
MAIL To: susan@url
RCPT To: harry@localhost.url
MAIL DATA
after that whenever I press enter it gives me an error :
Sender Already Specified 503.5.2
Can anyone tell me why it gives this error and how can I remove this error by doing changes in which file and how?
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Apr 13, 2010
I had configured my php to use sendmail as its mail agent. My server which is centOS 4.6 in this case runs in a lan.
What I need is that when i fire a mail function from php page hosted on my server in LAN, mail should get delivered to gmail or whatever destination address is..
But I am facing problem...When I open my php page which fires the mail, it takes long time to load say 1-2 minute in loading. After that it says Message sent successfully, but message not get delivered.
I had checked sendmail it is running... I also checked spam folder of destination email..
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May 10, 2011
I've searched high and low for an answer. This seems so simple...
Domain = chadmccan.com
Server 1 = admin.mo.chadmccan.com
Server 2 = leroy.mo.chadmccan.com
Email for my domain is handled by Google Apps. MX records point there, I receive a ton of email there.I have 2 systems. admin.mo.chadmccan.com, which is designed to be the "gateway" for all services, including email.On the same network, is leroy.mo.chadmccan.com. It's just an application server, for random apps, including a webserver.I just want all of my systems to email anything that goes to "root" to blahblah@chadmccan.com relaying via admin.mo.chadmccan.com. Is this impossible?
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Feb 25, 2010
1- how to config pop and imap on sendmail server
2- how to config smtp restriction on sendmail server
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Apr 7, 2010
I need to set a delay between sending two mails (say 1 second). I have a shared server so delay for specific domain will be more usefull(aaa.com - 2 sec, bb.com 1 sec etc).
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Apr 2, 2010
I am running Sendmail server for SMTP. I included dnsbl form spam filtering and it works well.
Quote:
But sometimes it seems that sendmail just doesn't check the dnsbl. I was capturing the communication and I find out that several times the client just send the message and the sendmail does not even send a packet for check it in dnsbl. The whole SMTP session was completed without one blacklist check?
I use FEATURE(`delay_checks')dnl for allowing authenticated clients to pass the filters. Can this cause that the SMTP session is completed to fast and sendmail just has no time to check the dnsbls? (the check is delayed)
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Oct 25, 2010
I have a lightweight admin background, but good enough to set up most servers. I have switched from sendmail to postfix for the first time, but I keep going around in circles on the following. In sendmail, I used to maintain a table (mailertable) where I would redirect email like this
[Code]....
I happily mapped any incoming email address of any valid hosted domain either to go out to it's final destination via smtp, or if the person has a local mailbox, it delivered locally. Any errors could be forced, and a catch-all for the domain could be directed also.
I've struggled with virtual hosts and transport and a combination of the two to come up with the same result for postfix. I have this feeling I'm missing something really simple, or I am not 'getting it' when I'm doing something postfixy and I still have sendmaily expectations. right path so I will at least know I'm pointing in the right direction and working with the right files to achieve my aims? Postfix is so amazingly powerful and flexible, I'm having trouble figuring this bit out.
I have this feeling I just need a calm hand on my shoulder, a friendly smile and a hand pointing me the right way..
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Mar 10, 2011
I have configured sendmail with startssl. In my case i have not used certificate for client (so i have integrity and privacy but not sure authentication, i.e.identification of peer by certificate From my log i see:
[Code].....
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Oct 20, 2010
I'm trying to configure a messaging system based on php script with iptables, rsyslog and mysql. In the firewall server Sendmail is istalled so i'd like to use it to receive messages in the main mail server, located in DMZ. In the Lan i've configured another linux server than works perfectly, sending mail messages to the server located in DMZ. After looking for some solution I've tried to configure sendmail to relay mail to the server but the only thing I reached is the following message: "Deferred: Connection refused by mail.server.com" message rest on queue and flushing it reply
[Code]...
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Jun 23, 2010
I want to configure tls for our sendmail 8.14.x server so that it will attempt to connect to a remote server using tls, and then fall back to an insecure connection. The sendmail.mc file has the following line:
Code:
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
Does this configuration already have the server attempt to connect using tls first, and then fall back to an insecure connection? If not, what would the syntax be in order to accomplish this? Also, what is the best way to check to see how the connection is being made?
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Apr 15, 2011
I'm trying to build a sendmail relay server.I am in an enclave off a large domain with a FW between us and the main domain.The FW will only allow mail communication between 1 server in our enclave and the mail server of the domain.I can send mail from our 1 server to the domain mail server, but I can't get our 1 server to accept mail from our other servers.
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Dec 12, 2008
I have isntalled a server with Centos 5.2 OS, now I would like to switch from the default sendmail to postfix doing a yum install postfix I've noticed there is already available an rpm version for the OS but I would like to compile my own 2.5 version, I've noticed compiling from source does not allow me to use the mail switcher to tell to the system I'm gonna use Postfix instead of Sendmail as the default MTA while this is possible when I use the "official" rpm version of the package. Now my question is this, would this be a problem? There is some specific procedure/best practice I should follow? Or once compiled and configured Postfix I can safely disable/uninstall sendmail?
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Jul 27, 2011
I am using postfix as spam Mailscanner to protect my mail server running sendmail. The problem is that when I forward an email from MailScanner mail me back with the following error:
<postmaster@localhost.@mydomain.com.>... Real domain name required for sender address (in reply to MAIL FROM command))
Jul 27 13:15:59 smtp postfix/local[28465]: C68AC1000001: to=<root@smtp.mydomain.com>,
[code]....
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Apr 4, 2011
I recently setup an email server on Fedora Core (14). Sendmail is running and I am trying to authenticate from a client pc using imaps. I installed Cyrus-imap and it is running and listening on 993. When I try to login, it doesn't accept authentication even though I verified the user's password is correct. (tested with ssh)Is there something I have to do with Cyrus or on the server to allow connections to email? I have not used Cyrus before. I am attempting to access my mail folders via Sendmail and did not make mailboxes in Cyrus. I did allow imaps through the firewall.
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Apr 7, 2011
Im not able to find good response on this from google, urgent help required.
While im looking at my smtp server log at /var/log/maillog, im having these two errors for which im unable to find the reason.
1)Could not open inline file /etc/MailScanner/reports/en/inline.sig.txt, No such file or directory
2)did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
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