I have installed qmail in centos 5 machine. After the installation , the qmail is not able send mails. The output of the qmailctl stat is
[root@testserver qmail]# qmailctl stat
/service/qmail-send: up (pid 28409) 168066 seconds
/service/qmail-send/log: up (pid 20217) 1 seconds
/service/qmail-smtpd: up (pid 20210) 2 seconds
[code]....
am using qmail and have webmin, all is running smoothly, but i have users spamming other staff accounts.The question: How do I block a user from sending out mails but still able to receive mails. Just denying access to sending mails?if anyone can guide me to do it via terminal as well as webmin.Why webmin you ask, because I have tried it once it works but sadly it block both incoming and outgoing mails.
View 3 Replies View RelatedI implemented postfix as mail gateway but i need to block the ability to send
mails via telnet
How can i achive this?
I have configured qmail on my CentOS5.5 server. I am planning to divert all the mails sent to one domain to be diverted to another domain. For example, I wish mails sent to user@my.external.domain.com to be seamlessly diverted to user@my.internal.domain.com. I tried.Code: my.external.domain.com:my.internal.domain.com in the smtproutes file. It did not work Also how can I have the reply to address different from the one I sent. Again, I wish, if I send emails from user@my.internal.domain.com.
View 10 Replies View Relatedi have setup a mail sending server using which i am able to send mail to gmail's ids but when user is having yahoo or rediffmail mail id these mails are not getting delivered either these are blocked or bounced back. what should be done to send multiple mails. just to add more details, i am using sendmail to send these mass emails.
View 6 Replies View RelatedFrom 2/3 days my evolution mail client is not working properly when i'm trying to send mail from it. In case mail receiving it has no problem but the problem is occurring when i'm trying to send mails with following error..Error: Welcome response error: Server busy, too many connectionsI'm using: Ubuntu 9.10, Evolution 2.28.1
View 4 Replies View Relatedi want to recieve mails to my emial id for the cron jobs i have assigned in linux command line..
View 1 Replies View RelatedI setup a qmail on a Debian 5 Lenny server with courier-imap server. I can send mails but cannot receive mails. I altered /etc/init.d/qmail as follows.
Code:
this is sasidhar. we are getting problems with sendmail. we have a site, when user registers we are sending a confirmation mail to user. The problem is some times it is not sending mails to users. The user accounts are valid.This is what I am getting reply to my mail
[Code]...
i'm using James on Cent OS 5.4. NOw we figured out, that our firewall changes the signed mails on the signing gateway, which is the Cent OS Server with James. So... the question ist, how do i configure James to send mails out directly... not passing it to the firewall?
View 3 Replies View RelatedI want to know that by default do we need to configure SMTP and POP3/IMAP sever for sending and receiving mails in Linux server and client machines or we can directly send and receive mails without configuring these mail servers?
View 2 Replies View Relatedwhile sending mail form squirrer mail it gives erorqmail-inject: fatal:unalbe to exec qq(#4.3.0)iam not able to send mail.i googled but not got solution.
View 2 Replies View RelatedI have a postfix mail server on ubuntu 10.04 lts behind a router. so all local users are fetching/sending mails through ms outlook using local IP. Sometimes when internet goes down and any mail send then it bounced back immediately saying domain not found. Can u please tell me how i configure to hold all mails in postfix server rather than bounce when internet fails and will pass through when restored the internet around 15-30 minutes?
View 2 Replies View RelatedI've started to get emails that would typically come from [URL] as [URL]. These emails come from services that send out emails (backup programs) directly, or from cronjobs. I've logged in as the non-root account and either sudo su - or su - to root and the restart the service at one point or another. If I login directly as root and bounce the service or cron the emails come across as from root. I don't see anything in my environment variables after I su to indicate what would cause this. I'm not sure where else to look? A pam setting? This seems to have happened between Fedora 10 and 14 (did a bunch of overdue upgrades recently) I've only got Fedora so I don't have anything to compare to. In Fedora 10 I did not have this problem.
View 2 Replies View RelatedI had a problem with qmail-smtpd which didn't want to start, throwing a segfault.
Now, it starts but it doesn't live more than 1 sec. I can send emails but can not receive them.
I did a strace:
when i start qmail seervice it gives error#/etc/init.d/qmail startStarting qmail-toaster:
svscansupervise: fatal: unable to acquire pop3/supervise/lock: temporary failure
supervise: fatal: unable to acquire log/supervise/lock: temporary failure
supervise: fatal: unable to acquire log/supervise/lock: temporary failure
supervise: fatal: unable to acquire pop3-ssl/supervise/lock: temporary failure
I use this command to fetching mail from gmail it work good but it does not retrieved mails from server as I read from manual.
Quote:
fetchmail -d0 -F -K pop.gmail.com
What is wrong and what should I do?
I am aware that there is a qmail-ldap package to have ldap back end for qmail. But I need only user authentication for qmail through ldap (not the backend; i.e still keeping Mysql as the database). I am pretty new to mail server configuration. I have just configured a (q)mail server (which is currently my sand box) and am able send and receive emails. I am planning to add ldap authentication (just that) to it. Can anyone point me to the right direction?
View 6 Replies View RelatedAs a beginner I installed Fedora 11 yesterday. Everything went well until I installed Evolution and Thunderbird. Incoming mails went well, but outgoing mails not.
View 6 Replies View RelatedI have problem with qmail. From today I can't connect to my server, when I login via ssh on serwe and check
Code:
telnet localhost 110
I can connect but when I try
[code]....
I am using ubuntu 9.04. I have configured Evolution on my laptop, but it is not working.
View 1 Replies View Relatedwe have a Postfix mail relay server. Not to be an open relay we use check_sender_access restriction with allowed sender domains. Is there a way how to configure postfix to accept mails from any domain for a specified recipient? Something like
Code:
if (recipient_address==host@mydomain.com) accept; We have an admin mailbox and we need it to be accessible from everywhere.
Sendmail will send letters OK, but they never show up. I cannot recieve with dovecot either. Everything seems to be OK, but it never works. I can send and recieve from localhost, but nothing outside.
The router is listening on 143, 110, and 25, and is forwarding just fine, or my site probably would not be visible.My HTTP site is at geekinsnthings.homelinux.org, the other address visible in the output is for anything else. THis is because geekinsnthings.homelinux.org redirects me to 8080 on my IP.
I have a laptop (running Fedora 10 KDE version) and a desktop (running Ubuntu 7.10) on my home network. Is there any way to send messages from one computer to another through LAN ?
View 5 Replies View RelatedI am not a networking expert by any means (in fact I have never taken a networking course), but I have taken several security courses, and generally we wind up discussing replay attacks. For example, the Needham-Schroeder protocol (using symmetric-key cryptography anyway) is flawed because it allows for replay attacks, and I understand why.
I guess my question is actually how someone would perform a replay attack. I know I can sniff network traffic by downloading wireshark. I also have downloaded winpcap and npg on my WinXP virtual machine. I'm trying to use this guide to help me, but I'm quite lost:[URL]What I did was to post a "link" to my facebook profile and I sniffed the traffic using wireshark. What I would ultimately like to accomplish is to copy that packet out of the wireshark output, and then use a tool like npg to transfer the raw packet back to facebook, which should result in a second, redundant post. I just can't figure out how to do that.
I'm pretty sure this should be possible. Facebook only uses an SSL session for authentication during login. After that, the information is just sent in the clear, so I'm pretty sure this should be possible.Can anyone explain how to do such a thing? It would really help my research paper that I'm working on this semester if you can. As of right now the attack we are trying to demonstrate/defend against is using a Windows VM, which is why I'm using winpcap/npg. The attack is actually possible using just about any OS (depending on the exploit used), but our POC is Windows only at the moment
Suppose I have computer A with ip address on eth0 of 192.168.0.1 and ip address on eth1 of 192.168.1.1. If I send packets to 192.168.1.1 from computer A, it automatically uses the loopback interface. Is it possible to modify the routing table some how to send these packets out on eth0 instead and have them route around the network and come back on eth1.I've tried 'route add -host 192.168.1.1 dev eth0' but it seems to completely ignore this entry.
View 5 Replies View RelatedI have an issue when sending snmp traps. I have an embedded system connected to a SNMP manager. I am sending traps from the box to the manager continuosly. After sometime I don't see any trpas coming out.
I get this error message.
Cannot open file /proc/net/tcp ...
: Too many open files
Cannot open file /proc/net/snmp ...
: Too many open files
What could be the reason for such an error?
I'm hosting a Sendmail Cyrus-Imap server on fedora 12. I recently installed a second NIC on a second internet gateway and successfully configured source based routing. Clients are able to connect over the mail.domain.com received from the gateway 192.168.0.1 to the interface 192.168.0.254. ETH0. Clients are also able to connect from pop3.domain.com and smtp.domain.com from the second gateway 192.168.1.1 to the interface 192.168.1.254. ETH1
I have cyrus-imap certs configured for the mail.domain.com and a Sendmial cert configured for mail.domain.com. My question is how would I tell sendmail and cyrus that the mail.domain.com goes out the ETH0 but deliver the second and third cert (eg cyrus sends pop3.domain.com and sendmail sends smtp.domain.com) to clients connected on ETH1?
I have created this thread as it sis realy hard for me to send traps from my Linux workstation... I m lost with v1/v2/v3 snmp... So here is the initial configuration: (without traps)
rocommunity myrocom
rwcommunity MyL33tP4ss 10.5.32.202
rwcommunity MyL33tP4ss 127.0.0.1
syslocation "FR"
syscontact root
From there i can "poll" my system. But what should i do if i want my Linux system sending traps when disks are full or system overloaded etc...I have found information on Internet but not easily understandable It is for v3:
rwuser admin
createUser admin MD5 mypasword
#
# From there i would have to comment the lines regarding the communities
#
[code]....
10.5.32.202 is my management host ... is this config ok ? But it seems that trap2sink is for v2 ? How does it work ?
My two machines are both running Ubuntu 10.10. I want to transfer program files between them using a local area network.
My Ubuntu machines can both see the Window machines on the network, and get files from them. But my Ubuntu machines do not detect each other as being on the network. Nor can my Windows machines detect my Ubuntu machines.
From what I can tell, that's normal, and I've become resigned to using a pendrive to transfer files between the two machines. Or even sending files as email attachments.
there is a clean and easy way to transfer files between two Ubuntu machines on the same local area network.