Email, And 2 Servers
Oct 13, 2009
I run a cpanel server, lets call it coffman for the time being.
I have all my name server set to:
ns1.domain.com
ns2.domain.com
ns3.domain.com
and
ns4.domain.com
I am running this on a "Centos" 5.3 system with cpanel.
I also have a vps, also known as a "3linode". We will call it "communication". I have had to reboot my web server, and can not have even that five minutes down off email. I am curious:
a: i have on "communication" "Debian"
b. I want to be able to keep the "domain.com" on the main "centos"5.3 system.
c: I however, want all mail sent to an @domain.com moved to the "Debian" system.
d: I also have staff members, and at some point, i hope to host a few things on the Debian system, so will then want to have the ability to set for example, staff.domain.com to go to the Debian system.
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Apr 12, 2007
I have server A serving the website for my domain example.com and server B handling email for the same domain example.com.
Apart from one problem everything is working the way it should. The problem is that all email originating from server A (the one hosting the website) to someone@example.com is delivered locally (server A) and never gets out where it could be routed correctly to server B.
What needs to be done to deliver mail originating from server A to server B?
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Jan 4, 2007
I'm experiencing some issues that I thought were something normal, or something that you could expect when working like this, but I think that it is something that should NOT happen.
We own a dedicated server, where we host some sites we develop (around 80 right now). We usually host both email and web page in the same server, but recently we had two customers who wanted to host email in a different place. The first one has its own server with proxy, and the second one is waiting the previous company to change DNS values.
The problem shows when we try to send an email from ANY domain hosted in our server, to one of these domains. From Outlook, the error is something like "no such user found", but the REAL problem comes when a PHP script (usually a contact form) tries to send the email. This mails get simply lost, and the customer never receives them.
My question is: What do I configure, or how do I do so my webserver looks for the real DNS, instead of trying to send the mail directly to the local domain?
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Feb 16, 2007
What is everyone using for IMAP-P ?
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Apr 2, 2009
My company's domain is mycompany.com and we are hosting our corporate website in our own datacenter.
Now I want to create another website subdomain, site1.mycompany.com, to be hosted in an external third party datacenter.
Is it possible for me to send out email from the third party servers using the address info@site1.mycompany.com? I do not want to spoof any outgoing mail.
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Jul 2, 2008
How can I prevent spam email to be send out by my servers?
How can I restrict how many emails per hour can be send based on domain name? I know hostgator and hostmonster has that type configuration.
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Jun 27, 2007
one of my new customer demand "Email Hosting on Multiple Servers"
I don't understand what they want, i have two VPS with CPanel.
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Sep 18, 2008
I host a handful of domains, using a whm/cpanel setup. It came time for me to move to a new server, and here's the process I took:
1. I created accounts for all domains on the new server.
2. Created all relevant mail accounts for each domain on the new server
3. Restored all of the files for each sub account on the new server
4. Updated the DNS for each sub account to point to the new server
I didn't, however, move my main domain to the new server yet. On top of that, I use Google to manage the mail for my main domain.
Now when I try to send email to one of the accounts for any sub domains (that is on the new server), the email bounces back as undeliverable.
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Feb 8, 2008
I'm trying to see if it's possible to have 2 email addresses on the same domain (e.g. email1@domain.com and email2@domain.com) but are handled by 2 different email servers (e.g. mail.domain1.com and mail.domain2.com)?
To put it into context, I have a domain hosted on my dedicated server and a couple of email accounts set up on it. I also have another mail account set up on a different server but with the same domain. I was wondering if maybe something could be done with the DNS to allow the 'external' mail account to be handled by the other server?
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Jun 24, 2007
I have noticed that a customer's emails are banned by certain RBL/antispam filters even though they are sent using SMTP-Authentication through a non-banned SMTP server.
It seems that its ISP IP is blacklisted..... Is this normal?
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Jan 20, 2007
I have a lot of questions here so if you can't answer them all I understand. even pointing me somewhere where I could get the answers would be appreciated; hardware sites focusing on server hardware, forums focusing on such, etc.
we plan to have three different types of servers:
- db server (self explanatory. mysql. for forums, mysql driven sites.)
- file server (lots of files around ~2-10MB, consistant 70mbps right now, but we want more room for upgrades. needs a LOT of storage room.)
- web server (lots of php files, but also static things like plain html, images, etc. also includes all misc services for the setup-- dns, etc.)
could I be given a rundown for which hardware each of the three should have? I don't need specifics, even just knowing that more ram is important here while cpu doesn't matter as much, or that the fastest disks available are a must, etc would all be valuable info for me. despite that, I certainly wouldn't mind specific hypothetical hardware configs.
for the database server I'm assuming the more ram the better. not entirely sure about the cpu? also not positive on disks...
for the fileserver, how much ram would be practical or useful? disk io will be an issue I'm because plenty of people will be pulling files at once so the disk needs to read from multiple places. scsi (and even raptors) are not an option as we need 750GB+ of space on a reasonable budget. more ram will take some load of of the disks, but how much is neccessary / reasonable?
for the web server I'm assuming cpu first, then ram, but it'll likely need less ram than the db server?
I'm more lost on the disks than anything. scsi on the fileserver is not an option under any circumstances due to $/GB. for the db & web server I'm willing to pay for scsi if the performance increase really does warrant the extra money, but I'd like to be convinced before shelling it out. if you have benchmarks geared at server hardware when it comes to disks I'd really appreciate it.
also, what's the best way to network these together when colocated? each one with a dual gigabit ethernet port and then the communications go to and from the router?
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May 24, 2008
We send mail to another servers but we cant recieve mails another servers. We can't recieve with webmail and outlook.
I look logs but there is no error and our ip is not in blacklist.
there is the error in our server
[url]
linux cpanel centos 4.6
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Mar 28, 2008
I was wondering if it is possible to cluster 2 web servers and 2 mysql servers with only one server working as load balancer.
I am planning to use LVS (ldirectord and heartbeat).
Let's say I have 3 IPs allocated to the load balancing server.
111.222.111.222 (Main IP)
111.222.111.223 (Web Load Balancing IP)
111.222.111.224 (MySQL Load Balancing IP)
If a connection is made to .223 it would pass the request to one of the web nodes.
If a connection is made to .224 it would pass the request to one of the MySQL nodes.
Is it possible to do this?
If not, can I run, for example, nginx on 223 IP address to provide forward proxy? (Then it would not be able to HA but the main point is to load balance so)
Also, what would be the best way to keep the data same on both web servers? This is a web cluster for a very high traffic forum with a lot of uploads every hour so it has to do real time synchronization. I heard that DRDB is only one way and not two way so I'm not going to be able to use this.
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Oct 11, 2009
I am just colocating servers and managing them myself, and renting services off of them. In the future I would like to start offering dedicated servers as well. I am wondering if many companies do this, or if its more of a general practice to just setup as a reseller? The worst part that comes to mind is thinking of how to do billing for the bandwidth per month. With my setup I would only be offering flat bandwidth packages (like 2TB a month) but even so, I cant think of anyway to automate it so WHMCS knows if they went over, if so, how much, etc.
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May 28, 2015
I'm having difficulty sending an email to another email address (with a different domain) which is on the same VPS.The trouble is, on the other domain's VPS control panel, within the DNS settings, the MX records have been pointed externally (to an exchange server). Their email is turned off. But bizarrely, their mailbox is full.
It seems as though Plesk is ignoring the MX records, and sending MY email internally to the OTHER domain's mailbox on the same VPS.How do I get Plesk to send my mail to the correct EXTERNAL MX records?
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Jul 18, 2009
I had a email address I deleted on my server (postfix on Debian 4), but to my surprise the server still recieves email for the address!
(I have manually tried sending a email to the address and it comes througt).
I have deleted the address from the /etc/postfix/virtual file and restarted postfix.
What could I have forgotten?
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Feb 13, 2007
One of my customers asked me if is possible technically to offer free email services.
Since he's going to launch a big portal he want to offer such things later, for all users.
Now, there are problems as:
a) if there is any possibility to compress emails similar with GMAIL or YahooMail or so, because i can't imagine the email is uncompressed
b) how can be handled email boxes over multiple (mail ?) servers if the HDD space needed would be larger than for one server HDD ?
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Oct 27, 2009
I am having an email issue and I can not resolve. I am hoping for some assisstance here.
One of my local clients are not able to email each other in their office. (About 10 employess I believe)
They are using Outlook mail client, and using ISP's SMTP server. They are able to send/recieve email to other users externally, but not intenally.
Using webmail works perfectly fine.
I spoke with my host and the said everything is working fine. I checked with the ISP to see if they are blocking the IP address on the SMTP server. They said they were not.
I have a personal account on the same server and tried to send email to another local email account, and it did not work either. Tried to send email to my clients email and they did not recieve anything.
I am on the same ISP as my client, so Im still not sure if its the ISP or not.
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May 19, 2007
I setup mail piping with Exim so that e-mails sent to a specific account be forwarded to my PHP script. It's not working properly, because when I send a mail to this account, it's bounced by the mailer daemon:
Code:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
pipe to |/home/user/public_html/support/parse.php
generated by support@mydomain.com
local delivery failed
In my /etc/valiases/domain.com file I have:
Code:
support@mydomain.com: "|/home/user/public_html/support/parse.php"
*: :blackhole:
What can be causing the error?
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Mar 11, 2008
On one my servers, I'm receiving hundreds of spam emails that are clogging up the email queue to email addresses that do not exist.
For instance domain.com, I would get
bob@domain.com
liz@domain.com
325235@domain.com
You get the picture. How do I setup my server so that if there isn't an email address setup the email automatically gets deleted instead of trying to attempt to deliver it?
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Jun 30, 2007
I have a client who has his own hosting account, and wants to leave his e-mail on his own hosting account, but his website on my hosting account.
On his own hosting he has created a sub domain called shop, and pointed its A record to the IP address of my server. On my server I've setup his domain name, and created the sub domain shop. That all works fine.
The problem I have is that the site under the shop domain needs to send an e-mail to sales@hisdomain.com. Now my server thinks the main domain is setup on my server, so it sends the e-mail to itself.
I'm justing wondering how I can get the server to point the mails back to his hosting?
A previous host I've used said they had to add the domain as a remote domain on the server, then they had to make some changes to /etc/localdomains because I was getting errors trying to send mails to the address.
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Dec 11, 2007
A email account can send email, but cannot receive email, why? How do I know the answer why?
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Aug 15, 2008
What would give me the best performance, to have many low end servers (core2duo) or a few high end servers (quad cores, dual quad cores).
Running everything from mysql queries to video streaming.
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Aug 13, 2008
Is it possible or advisable?
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Jun 24, 2008
I currently have a domain on Server 1 (Linux, Apache, Ubuntu, Matrix control panel).
This server does not have any spam filter, so I have moved all the email accounts to Server 2 (Linux, Apache, Fedora Core, Plesk) which does have a brilliant spam filter; and have changed the DNS record for mail.domain.com to the IP address for Server 2.
Emails are being successfully received on Server 2.
On Server 1, when an email is sent through SMTP to an address at that domain, it does not send it to Server 2, it gets delivered to the hosting account for the domain on Server 1. So what I am guessing is happening is that Server 1 detects the domain has an account on the server, and instead of looking up the DNS info for that domain, just assumes it is on Server 1.
What I need to do, is force Server 1 to send email for that domain to Server 2. Is this possible, and if so, how can it be achieved? If more info about the server is required for a solution please let me know and I'll provide what I can.
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