Server :: Sendmail Sometimes Does No Dnsbl Checks
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)
View 3 Replies
ADVERTISEMENT
Feb 2, 2010
I have a problem with sendmail. I am using the zen.spamhaus.org dnsbl, and it is doing a wonderful job of blocking incoming spam from open relays. But it is blocking my users who are on a dynamic ip range from any isp remotely. They should be able to authenticate and send messages no matter where they are as long as they authenticate right? I just want to use the blacklist to block incoming mail to my server that is being distributed to our email addresses.
I want to block people that are hosting mail servers and sending mail to my domain from isp sub-nets. But I don't want to block my users that are sitting on isp subnets using their mail client to authenticate over smtp and send an email from my mail servers.
View 2 Replies
View Related
Sep 17, 2010
Am using atmail server but recently i have been facing the problems of spams which caused my ip address to be blacklisted to some dnsbl check. am using below dnsbl to filter spams to my atmail
View 1 Replies
View Related
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
View 17 Replies
View Related
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.
View 1 Replies
View Related
Nov 29, 2010
How to do a small script which checks that a username can be a username. I am talking about the special characters and spaces which can't be used when creating a username. So a user writes:
"kevin little" in this case this can't be a username as it contains space.
or
"kevinlittle" in this case this can't be a username as it contains special character ''.
or
"kevin_little" in this case it can be a username as there are only accepted characters.
View 5 Replies
View Related
Dec 17, 2010
@work we use Zabbix and also IP-audit for monitoring. Each day we have a list of outgoing SMTP-servers on our IPaudit server.
This script will take that list and check them all against a whole bunch of DNSBL's
# cat /usr/local/sbin/check_rbl
Code:
#!/bin/bash
#####################################################
# check_rbl
#####################################################
# 17-12-2010 by JP van Melis
#
[Code].....
View 15 Replies
View Related
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]....
View 1 Replies
View Related
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.
View 1 Replies
View Related
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
View 1 Replies
View Related
Jun 7, 2010
After searching the forum I could not find a clear answer to my question so I am giving it a try...
I have installed a LAMP server with Postfix as mail server. The scripts send email as user www-data using the mail server on the same machine.
However, the email got rejected by external mail servers (failed reverse DNS check) so I setup a mail server that meets all needed requirements.
Now I would like to use this second server instead of the mail server on the LAMP server. I found that this could be done with changing sendmail settings in php.ini (I think).
However I am not sure how that will go: www-data is no actual user on the new email server (which requires authentication before sending). Do I need to create a new user on the email server or change the settings in php.ini to match an existing user?
View 1 Replies
View Related
Feb 24, 2010
I have users [URL] unable to send email to [URL]. [URL] user also unable to send email to [URL]. But both email addresses are fine as they can receive email from others or from [URL] and [URL]. I able to telnet mail server 110 and 25, no problem. Version: ESMTP Sendmail 8.12.10
Mail Log:
Feb 23 11:36:35 mail sendmail[16228]: o1N3aZxt016215: to=<xxx1@gas.com>, ctladdr=<xxx@abc.com> (501/501), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=442918, relay=gas.com, dsn=5.1.2, stat=Host unknown (Name server: gas.com: no data known)
[code]....
View 4 Replies
View Related
Jan 20, 2010
We're running a sendmail server on a fedora core 9 which we've configured recently. The problem is, the server is working fine but there are some e-mails that enter our server but doesn't get forwarded to the user.
Quote:
Quote:
Here it says "stat=Sent" but nothing from the above mail address has been received on the client's inbox. We've experienced this with Microsoft Outlook, Outlook Express and Thunderbird alike so far with Two(2) of our user accounts.
View 1 Replies
View Related
Feb 22, 2009
I'm new to send mail. I have a server with a public address and domain name. But I only want to implement a small sendmail network on our 20-user LAN. Can I turn my public server into a sendmail server? Are there any simple step-by-step instructions for this?
View 1 Replies
View Related
Mar 16, 2010
I am trying to setup a sendmail server on my dedicated server. It was pre-configured to use exim from cpanel. Is it possible to use exim for all emails from a a certain domain i setup on the server and sendmail for others?
ex.
domain1.com -> exim
domain2.com -> sendmail
If it is possible can someone let me know how i would go about doing this? If it is not how would i disable exim and use sendmail for all mail?
View 4 Replies
View Related
Feb 26, 2011
I'm setting up a full server configuration on Fedora, moving it from Mandriva which sadly faces a rather uncertain future. Things are going well and I will be ready (and more familiar with Fedora) in time to upgrade to Fedora 15.
What I have done so far in regard to networking setup:
I first removed Network Manager and replaced it with the network service (chkconfig --level 25 network on). That put an end to the overwriting of /etc/hosts, which now reads simply:
View 2 Replies
View Related
Jun 21, 2010
Having some issues setting up sendmail on a (basically) blank RHEL 5.5 server setup. My ultimate goal is to be able to automagically send logs / errors / notifications to ourselves from the server.
Our basic setup is a Win 2003 domain with exchange running on mail.domain.com.au.
I've edited the '/etc/mail/sendmail.mc' and added the :
Code:
line to it.
Also added the domain (domain.com.au) to the '/etc/mail/local-host-names' files
Also edited submit.mc and added
Code:
When I try and send a mail from root or a test user to one of the domain accounts, it seems to go fine, i.e no errors are reported but it never gets delivered.
From the mail logs:
Code:
So it seems to be sent to the queue no problems and when I check the queue :
Code:
Total requests: 0
Not nothing ever gets received. Am I missing something? I have read and read and read but dont seem to be getting any furthur.
So in the end this server doesn't need to do anything except be able to send mail from root to an external mail address.
View 1 Replies
View Related
Apr 24, 2009
I am trying to set up a mail server on centos5 using sendmail and dovecot, and eventually spamassassin and some antivirus filter as well. I'd also like to get the proper secure auth mechanism set up at some point too. But for starters, I've been having a lot of difficulty trying to even connect to the mail server from a client computer in the local network. I installed Eudora on the client and after some tweaking in dovecot I was able to connect to the mail server, but then when I try to send an email I get a "connection refused" error, with nothing being logged on the server that I can see.
The last time I set up a mail server was Fedora Core 2, so the configuration files have changed a bit to say the least, and I can't really refer back to those to set up this new server. Does anybody know of a good step-by-step doc on getting the mail server going? I've read the man pages and other various readme's, but these really only list out the available options with no really good explanation of what needs to be done to get the mail server going. If there isn't a full write-up on how to do this, I'll put something together when I'm finished so others can use it in the future.
View 7 Replies
View Related
Jan 5, 2011
i have configured sendmail server in my lan and it is working fine for me.but there is one little problem for me. i want mails send sunita should be received by vinita.sunita and vinita both are normal users on same pc.
for this i made entry in
Code:
/etc/aliases sunita: vinita
View 14 Replies
View Related
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.
View 2 Replies
View Related
Oct 27, 2010
Have read a whole bunch of threads from how and troubleshooting but still having problems.Was thrown a box configured by someone who resigned today. Need to get mail from the box outbound via SMTP relay off our exchange server.
View 4 Replies
View Related
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].....
View 2 Replies
View Related
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.
View 2 Replies
View Related
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.
View 2 Replies
View Related
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]....
View 5 Replies
View Related
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..
View 1 Replies
View Related
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.
View 14 Replies
View Related
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.
View 2 Replies
View Related
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.
View 1 Replies
View Related
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?
View 1 Replies
View Related
