As a part of migration I am proposing different scenarios to my organization. One which is asked to prepare is to configure multiple mail servers to handle incoming and outgoing mails. Say I have -[URL], I need to have accept mails from [URL] and send mail from [URL].
View 1 RepliesTwo exchange servers internally. One is setup for example.com (192.168.1.10) and the other is setup for example2.com (192.168.1.20) Both are behind a single public IP.
I want to use postfix to sit in front of the two exchange servers. Postfix will accept mail for both domains and relay to the appropriate server. I have postfix installed with only defaults at this point.
What is the easiest way to setup an incoming and outgoing mail server on centos? Without using a control panel, such was webmin.
View 2 Replies View Relatedi need is to have http and https allowed, together with mail server (incoming and outgoing) and ftp, ftps and ssh. all other ports have to be closed.
View 3 Replies View RelatedI want to have separate incoming and outgoing mail servers with smtp authentication.
Server1 will act as incoming mail server
Server2 will act as outgoing mail server
How can i authenticate domains users of Server1 from Server2 for smtp authentication.
I'm setting up a server and trying to make it *very* secure. Before I configured my web stack, I was about to install some security packages, Tiger and Samhain, but these packages wanted to install sendmail so that they can send outgoing notifications. From the reading I've been doing, I believe I want postfix instead of sendmail. It is my (perhaps mistaken) belief that installing postfix first will prevent them from installing this sendmail I do not want.
I want to install postfix with the following goals in mind:
* let PHP scripts send mail using the mail function.
* various system notification functions (cron, etc.) will be able to send their emails
* emails destined for root@localhost will be redirected to admin@mydomain.com
* let tiger and/or samhain send their notification emails
* NO INCOMING OR LOCAL MAIL IS PERMITTED. Because mail for my domain is handled by google apps, nobody will be checking mail on this server. Also, this server has very limited disk space. It is therefore very important that we don't have mail accumulating in boxes that will never be checked.
* no unnecessary ports, services, or cron jobs are running.
I've been reading a variety of pages that describe postfix setup on Ubuntu but these articles are imprecise, incomplete, and describe installation of things I don't want like POP/IMAP/etc.
There's also one final wrinkle. I will be setting up postfix to send via Amazon SES.
Im trying to get postfix to filter my outgoing mail and basically drop everything that is not in my hash table.
So far I managed to get this going
Code:
Code:
Unfortunately those rules also apply to incoming messages. My goal is to disallow users on my host to change their "MAIL FROM" to anything they like and restrict them to domains I specify. I'm aware that the local part still is variable and a user of domain "foo.com" could use a email of domain "bar.com", but still some of my troubles would be solved if I get this running.
It's possible to configure Postfix in order to check spam only for outgoing email?
View 2 Replies View RelatedI have a server with a domain running and im trying to resolve the mail server but i can't see where to start. I use OpenSuse 11.2. Basically, for starting, i want postfix to send incoming emails to a php script or perl. for outgoing emails i guess that i could use php mail function and i will see what else to have. I configured the dns. I do a dig.mydomain.tld MX and i get the following:
mydomain.tld3600INMX0 mail.mydomain.tld
mail.mydomain.tld 3600INAmyNumericalIp
So now my system is receiving MX content but i dont know what to do.
I'm running SUSE linux Server version 11. I want to configure mail server with postfix & cyrus-imap. For that, i have read many documents in Internet by i met issues. I'm running DNS in this server & it's ok Now I cannont send mail through command line.
[Code]....
We run a service in which a customer types in a form and gets a confirmation email after submitting the form. We are on a server with no control panel. We are running CentOS 5.
When we did our testing sendmail sent mails just fine and I was able to receive them. After we went live we found that 75% of our emails are being rejected by other mail servers. Doing research is seems that the headers indicate the emails are coming from 127.0.0.1.
We need to correct this problem, as well as do everything we can to reduce the risk of our mails being marked as spam. We do not receive mail on this server, but rather send mail. We have another email server on another server for receiving mail for our domain, which is already configured with cPanel (which doesn't have a problem).
We can not use cPanel on this server because of certain security restrictions.
I know that sendmail is cryptic to configure. We are willing to switch to Exim if necessary.
As far as installing Exim, I understand it's as easy as:
yum install exim
yum remove sendmail
system-switch-mail (if installed)
But as far as setting up Exim for our needs.
I'm using postfix on Ubuntu 9.10 and all I need is to occasionally send automated emails from perl or php scripts when data processing errors occur. In other words, I want to reject any connection attempts from remote clients and otherwise allow nothing except outgoing emails from one particular account.f I add this line to the default main.cf, will it do the trick or is it more complicated?
Code:
smtpd_sender_restrictions reject
I want install postfix on rhel5 please send me the configuration of
View 2 Replies View RelatedI 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'm running a server with two sites which both need to be able to send emails. Currently I have Postfix set up to send email via Google Apps. This works fine, but Google's servers ignore the From: address I specify and substitute the one I logged in with. Is there a way to make Postfix log into Google Apps with a different username based on what site the email is coming from? The server does not recieve any mail itself; Google recieves it and we have it set to forward it to the appropriate person's real email address. I'm only worried about sending mail.
(Postfix is not a requirement here, so if there's another mailer that can do this better, I'm open to ideas. However, sending email directly from the server isn't an option as it's a residential IP address and blocked by most of the big email providers.)
Actual I need to configure fetchmail and postfix in linux pc to get mail in outlook.
View 1 Replies View RelatedI've read many post close to my subject regarding blacklisting incoming emails, but non of them described what I really want:How can I reject a continuously changing email from my postfix, here is what I mean:
abduooo+bncCIr7stnbBBCssufsBBoEzTHSKg@googlegroups.com
abduooo+bncCMfZgc-iExCKr-fsBBoEMzorbA@googlegroups.com
abduooo+bncCLf5kv6MHRCtmefsBBoEjYnAAQ@googlegroups.com
I think you got what I mean, the thing I've taken from the posts I've read is that I created a sender_access file hashed it and added the:smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_accessto postfix main.cf configurationThe sender access file reads:abduooo*@googlegroups.com REJECTBut that didn't work, I know that there is some magical slashes and dots to be added to the sender_access, but I don't know which.
Working in a SW company. guys transfer their codes through email outside the company. mailserver running on postfix. Is there any method to filter mails according to contents of attachment not by file extension.
View 3 Replies View RelatedI want to configure Postfix mail server to send bulk mails to others domains only but they could not send to me. steps to configure Postfix to send bulk mails and what packages required for it.
View 2 Replies View RelatedI have CentOS 5.3 ISPConfig 3 installed. I have noticed that some mail I sent out were lost. Expecially, email with subject like "a" or "aa". I think Amavis block my email. Please tell me how to configure amavis to allow all outgoing email by postfix?
View 1 Replies View RelatedI just configured my first postfix mail server today. Everything is working correctly except for the fact that on all outgoing emails instead of the mail format being user@mydomain.biz it says user@hostnameofpostfixserver. I've looked everywhere I can think and I cant see where I'm substituting the host-name of the server for the domain name of my email. Where else could it be?Below is my main.cf. I am running ubuntu 9.10.# See /usr/share/postfix/main.cf.dist for a commented, more complete version# Debian specific: Specifying a file name will cause the first# line of that file to be used as the name. The Debian default
View 2 Replies View RelatedHow could we bcc all outgoing / incoming email through my Sendmail (8.14) Server?
I tried this /etc/procmailrc
:0c
! backupmail@domain.com
But this get looped and backupmail received multiple emails of each for domain.com while sending locally from one user to another user.
I have a linux server set up with postfix, which sends emails to our mail servers (MS Exchange). The linux server itself generates a lot of emails, and I would like to limit the number of mails it can send out pr second so that it doesn't spam our mail servers. Anyone know how I can control the max number of outgoing emails my linux server can send? As of now it's possible for my linux server to cause a denial of service attack on our Exchange server since I have no way of controlling the rate of outgoing messages.
View 2 Replies View RelatedI have a postfix system that sends allot of emails to customers and web site visitors. A lot of visitors just enter an invalid email in the WEB form just to download some files or do other tasks. Is it possible to BLACKLIST specific email addresses so the system does not send to those addresses? I can grep from the postfix mail log all those fake emails and place them somewhere.
View 4 Replies View RelatedIs it possible to have multiple servers in /var/qmail/control/smtproutes? I need to prevent if the server unavailable then it would connect to another ones.
View 2 Replies View Relatedso i set out to change the default smtp port the server uses because my ISP blocks port 25 and i need the email to work in outlook. this morning i could receive email, but not send it. so i did some research and thought that i needed to edit the master.cf file in /etc/postfix/ by commenting out this line: smtp inet n - n - - smtpd -oand replace it with587 inet n - n - - smtpd (587 being the port i want to use)somewhere along the lines postfix server stopped running and now i cannot get it to start.if i try using SSH it crashes immediately and if i restart it in simple control panel nothing happens
View 7 Replies View RelatedI have a problem relate to posttfix.I want to mirgare postfix mail server to exchange 2010 mail server but I can't do it,u can help me.You can show me have to do configure postfix and exchange how to?
View 1 Replies View Relatedi have install and configure the qmail server in centos 5.4 and its working fine. i have created the domain (ex - abc.com)in qmail server and also create the user and its working fine. but i am not able to send the mail which user not found in qmail(abc.com) server, which are created on the web (at isp side or pop user)
View 1 Replies View RelatedI've setup my server by following a ton of goods, and it seems to work ok, but I need to start using my server for email in order to receive orders placed via my website. I've followed this guide - [URL] I followed the steps above, and tested the mail server via telnet, and all seemed to be ok. I tried sending an email via Squirrelmail, from cs@thinclientwarehouse.co.uk TO my working email simon@c1systems.co.uk, but the server returned with the following message:
<simon@c1systems.co.uk>: host mail.c1systems.co.uk[95.128.128.129] said: 550-Verification failed for <cs@localhost.thinclientwarehouse.co.uk> 550-The mail server could not deliver mail to cs@localhost.thinclientwarehouse.co.uk. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries. 550 Sender verify failed (in reply to RCPT TO command)
is there any HOWTO for configuring Webmin Postfix server with multiple postfix virtual hosts? Seems to be a tough challenge to set it up without any easy manual..
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