CentOS 5 Server :: Connect With SMTP / IMAP And POP3 Using Email Services?
Oct 2, 2010
Having my Diploma Final Project on setting up a virtual mail server within Local Area Network (LAN) only. I had follow this how-to [URL] and complete up to squirrealmail web mail. I added two new user to try on sending and receiving mail. It works. I run CentOS on VMplayer. I using my laptop to do all the stuff, the laptop default OS is windows 7, I install VM player on it and run CentOS inside the VM Player.
I want to do testing on Windows 7 side by installing Thunderbird email client program, I want to connect to mail server with SMTP, IMAP/POP3 using the email service. I have problem while setting up user account on Thunderbird, Thunderbird seems like cannot detect my CentOS mail server. How? Do I have to do any other configuration on CentOS? Any DNS? Port number for IMAP, POP3 or SMTP?
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Feb 16, 2011
I want to retrieve emails from my POP3 servers to my home server. But from there, I want to be able to access them via IMAP from my other computers, i.e. desktop, laptop, phone. And then of course I want to be able to send emails from said devices via IMAP to my home server which POP3's them out to my mail servers. Basically, I have a few POP3 accounts with various hosts and I want to conveniently interact with them from lots of devices using my preferred software (i.e. Mutt, or Thunderbird on my Windows boxes). My home server is Ubuntu Server if that's relevant.
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Jan 12, 2010
Now, i want to change port smtp, not use 25
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Mar 30, 2010
I 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?
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May 21, 2010
CentOS 5.4
/etc/init.d/dovecot start
Starting Dovecot Imap: Fatal: Protocol pop3 given more than once
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Jan 20, 2011
I would like to change an email account from POP3 to IMAP on an ISPConfig 2 system, I can see that the IMAP and POP3 process are both running.
I have the Maildir check box ticked for the server
Is there anything else I need to do, or is it just a case of changing the mail client from expecting POP3 to expecting IMAP?
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Jul 25, 2011
I have installed Postfix with LDAP, Dovecot IMAP/POP3 Server on RHEL 5.5whether Postfix without IMAP/POP3 server is possible??
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Sep 24, 2010
My server listens to POP3/IMAP requests. Some users have configured their mailers with high checking frequencies, say once every minute, such that the system logs are full of entries with no significance at all.I'd like to ask if there is a way to limit the per IP frequency of POP3/IMAP access ?I'm using "xinetd" to wrap the "ipop3d" and "imapd" which come with the Alpine package.
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Jan 25, 2011
This is my first post to the forum
I've recently migrated my office PCs to ubuntu. My server doesn't server any big purpose but to provide Internet Connection to the rest of the nodes. Things were quite easier during the windows era using ICS.
Even in Ubuntu we were able to do it using the "shared network" option, simple & straight forward. But things got complicated only after installing "squid". Needless to say it brought in a lot of add ons as far as the http proxy serving is concerned & we are enjoying a better internet(http only) connectivity without any doubt. But we are not able to use our email clients, MS Outlook or Thunderbird
But to best of my knowledge squid strictly is a http proxy hence doesn't support handling requests on ports other than 80. (465 & 995 in my case)
Now I have two queries, 1. Can "Squid" really be used to do what I want here??? using iptables, port forwarding or any other mean
& 2. Can any one suggest a good pop3/imap proxy as good as squid is.
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May 13, 2011
i have some problems to start my dovecot server. I tried to install it from webmin using "un-used modules" but it was allways the same error: "E: Unable to locate package dovecot-pop3d".When I tried to install it from console using the commands: apt-get install dovecot-imapd dovecot-pop3d dovecot-common - and there are no problems with dovecot-imapd and dovecot-common, but still the same error with dovecot-pop3d. After command: service dovecot status: could not access PID file for dovecot ... failed!
After try to start dovecot with comand "dovecot": Error: mail_executable: Can't use /usr/lib/dovecot/pop3: No such file or directoryFatal: Invalid configuration in /etc/dovecot/dovecot.confI've read a few similar threads in this forum about dovecot errors but still can't to fix it.
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Jul 3, 2011
I'm trying to configure dovecot in RHEL6, but seems system won't accept local user login. I've already disabled pam. I've tried mutt -f imap://xxxx, and Thunderbird to connect as imap and pop3, but both failed, seems dovecot won't accept the password of the login user.the dovecot info log as, Jul 03 20:48:42 imap-login: Info: Disconnected: Too many invalid commands (no auth attempts): rip=192.168.1.3, lip=192.168.1.3, mpid=0, secured
#passdb {
# driver = pam
# [session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>]
# [cache_key=<key>] [<service name>]
[code]....
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Jul 16, 2011
I had installed opennms im getting email alert when all port are getting down and i also getting pop and imap messaage to whn th eport get dwn i want to stop asap mesage of pop3 and imap..whether its poasssible to block partilar imap and pop3 port .
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Mar 31, 2010
My actual mail is via pop3 from verizon. What I've done so far is just pull my pop3 mail onto my main machine at my house. But I'm finding I'd rather have a single imap server on my network so then all my machines could see the same mail.
I don't really want the imap server to poll verizon for mail, I just want the imap server to check pop3 mail at verizon only when one of my mail apps checks into it to look for mail.
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May 4, 2010
I'm somewhat familiar with Linux and became pretty decent at installing and configuring packages in Ubuntu. One of the things I was able to do with my tinkering was set up a functioning imap and pop3 mail server using dovecot-postfix. Now I'm experimenting with Slackware to get the feel of another distro, and I noticed that the mail server packages were already installed. On my client computer they can pick up that I have users configured and my mx record is working.
However it is failing to send mail saying that it is failing to relay the e-mail message and that the server responded 5.7.1 which was a problem that I was having in Ubuntu when first configuring the mail server. The fix was to edit the postfix.conf file and adding the localhost name of my server. Does anybody know of the file that I need to edit to make it possible to relay my messages with both pop3 and imap.
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Apr 16, 2011
The server I'm running is virtually stock CentOS - it's running on a xen virtual host, started as CentOS 5.1 (32 bit) when that was fresh, it's at 5.5 now and updated nightly. All packages except postgresql and php are from CentOS and EPEL.
I'm running dovecot on it, and for long time, squirrelmail connecting via localhost was good enough. All external ports were firewalled by the CentOS firewall (just 25,80,443,custom ssh are currently open).
Now I need to allow an external imap client to connect.
I have generated ssl key and configured the dovecot configuration and it should be good to go, but gosh dangit, I can't remember how to open the port in the configuration.
I did it before when I set up ssh to run on a non standard port after I got sick of constant brute force attack on port 22, but I can't recall what I did and the various tutorials I find online all tell how to do it with the GUI tool, but I don't have any GUI stuff installed.
system-config-securitylevel-tui
Is I'm pretty sure what I used to open up my custom > 1024 ssh port, but I can't remember how I used it to open that port and it doesn't seem intuitive. Also, do I need to use 993? I'd almost rather use something custom above 1024, as long as thunderbird supports it (don't care about any other mail client)
Finally, my smtp server is postfix and port 25 is already open (but not an open relay, I check it about every 3 months). For requests to send mail from a client, I would really like some authentication of some type - as in only relays for IP addresses that have recently successfully logged in the secure imap port.
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Apr 2, 2010
I have installed a linux server in my office to run 16 machines. Its main use will be a internal mail server but will be also running websites.
I have installed Ubuntu 9.10 server x64 and have got apache running.
I am looking for the simplest more robust solution for smtp, pop3 and imap. I have only ever used qmail before and found it a pain to configure and its getting old so I though I should probably try something new. I have not much experience with running pop3 or imap on linux so would love a suggestion on that.
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Sep 30, 2010
i want to set up an email server both to receive and send emails. I also am on a dynamic ip scheme with my ISP. I do have a dynamic dns account with no-ip.org the Questions are:
-will somebody be able to send emails to me at the <user>@<dyndns_name>.no-ip.org email address?
-will I be able to send emails from the <user>@<dyndns_name>.no-ip.org email address?
I know i'll be able to login to accounts like gmail and yahoo and download emails from there.. but even that i don't know - even macroscopically how its done:
-is it the sendmail deamon that accepts the mail from <me>@gmail.com, <me>@yahoo.com, <me>@<dyndns_name>.no-ip.org?
-is it the sendmail deamon that does the sending of email (as well)?
-can it push emails that I want to send as <me>@gmail.com to the gmail smtp servers (and they in turn will push my email even further)?
-can it push emails from <me>@<dyndns_name>.no-ip.org to receipients?
and finally,
-WILL receiving pop/imap servers allow incoming email from my server? or due to the dynamic ip they'll assume I'm a spam server?
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Sep 11, 2009
I am trying to prepare procedures for email restoration following a file system loss that contained user Maildir directories. Assuming that my most recent backup is earlier than the last time that many users received and downloaded email, the restored mail directories will not contain messages that were previously received and downloaded to clients following the backup and preceding the crash. This is not a problem in itself, however, it does appear to cause problems for the email clients.
My desire would be for email clients (outlook, outlook express, thunderbird) to properly recognize the messages that currently exist on the server, ignore previously downloaded messages and download newly arriving messages.The behavior that I am seeing is that the email client fails to recognize that any new messages exist and fails to download any messages at all. By removing the dovecot.index... files and the uidlist file, the clients will download ALL messages that are present in the "new" and "cur" directories even if previously downloaded. This is also an undesirable outcome.
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Jul 12, 2011
I am having problem to collecting email from remote POP3 (all the emails for a domain is stored here) and distribute it after collecting to several users defined to Linux server. I have install postfix in Linux server for email distribution.
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Sep 19, 2010
for like two weeks I have been trying to send email using evolution for some reason I always get the same Code: Could not connect to smtp.gmail.com: Input/output error
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Oct 30, 2009
Is it possible in Linux to restrict POP3 or IMAP for particular users.I need a confirmation on this, that it is possible or not in Linux.
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Jan 26, 2011
I'm trying to set up my gmail account with Evolution. I am trying to set up a mail client where -
1) All the mails are stored locally, so that I can work offline. When I reconnect, the client (Evolution) syncs with the server - sends emails and updates any changes.
2) All the labels/folder system to be respected and retained.
After struggling with various sites that argued Pop3 and IMAP (numerous blogs and google searches), I came across this conclusion (pls correct them if they are wrong)-
1) Pop3 allows mails to be stored locally, but will not break them up into folders.
2) IMAP will allow the folder system, but will only store the headers of mail on the local server, and the content will be downloaded as per request.
1) Will Pop3 access allow syncing between the local version and the server version? For instance, a mail read in Evolution should be marked as read when I sign into the web-interface as well.(I can always create a filter/rule that replicates gmail filters)
2) Will IMAP allow me to store all mail locally (isn't this exactly what IMAP is not!)? The combination of imap-gmail-evolution was not so successful when I tried it out - too slow!
PS: I would prefer Evolution over Thunderbird so that I can integrate the Calendar. However, if ThunderBird is the easiest solution, then it's fine too...
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Aug 7, 2011
I'm trying to connect to Gmail to pull my emails from the Gmail site, via the IMAP/POP3 access server. However, I can't seem to connect to the server when in Ubuntu code...
And it hangs here indefinitely. However, if I reboot my PC into Windows, it connects fine. I've turned off UFW so I would expect the connection to work. I've also been able to POP3 into other servers, so it seems to be something specific to the gmail IP.
Anyone else had the same problem or know how I can debug/fix this?
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Mar 1, 2011
I used to have this setup on an old server and i'm trying to move it to a new server.I have a new box installed with Ubuntu 10.10, sendmail, courier-imap and courier-pop.I've configured virtusertable/local-host-names/virtual-domains/sendmail.cf and such.Everything is set up to take any mail arriving to @mydomain.com and move it to a user called "mobileinbox".When i log in as mobileinbox (su mobileinbox) and check my inbox using mutt, i see all the e-mails , but when i login from the outside using pop3 or imap , it says i have no new emails.
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Jun 9, 2011
Does anyone know how to go about setting up a secure IMAP email server that is able to be accessed from outside the network? Similar to how you can access your google email account from your computer using Thunderbird.
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Apr 9, 2010
I have a server "test1" in domain [URL]. I installed sendmail on it. I have another mail server "mailsrv" installed in [URL] which is my primary mail server and contains all accounts and mailboxes. Now when I send email to [URL] from [URL] it sends successfully. But when I try to mail to user1@abc.com it tries to search user1 in [URL] but I want it to forward this mail to mailsrv.abc.com over SMTP port. Delivery will then be taken care by [URL]
My log shows following
Code:
Apr 9 18:37:06 test1 sendmail[7512]: o39Db6Hs007512: to=user1@abc.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30047, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (o39Db6Il007513 Message accepted for delivery) It should not go to relay=[127.0.0.1], it should go to relay=[10.10.10.1]
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Feb 1, 2011
Anyone know a simple command line to check for a specific email - by subject - on an SSL secured IMAP server?
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Feb 22, 2011
Id like to ask you some advice. Im currently using as mail server Lotus Domino. Because of many reasons I need to create an SMTP server that receive the email from Dominothat relay those email into an authenticated SMTP on the internet. How can I do that? I create a Debian virtual machine and I installed Postfix. I edit the config file and set the relay host (authenticated SMTP on internet),the mtp_sasl_auth_enabled and smtp_sasl_password_maps parameters. If I try to send an email using that SMTP server I got a message that say âśRelay access denied, check the email address†What did I do wrong
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Sep 9, 2010
running debian 6.0 "Squeeze" I installed Evolution trough official debian squeeze mirrors, installed all available updates (that know off) but i still can connect to my POP3 (email) server.what does evolution need to connect to pop3 ? when use Kmail, everything works fine
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Dec 9, 2010
I have a recent install of Fedora14, and wanted to have outbound email sent to a smtp server elsewhere on the local network. I found the System->Preferences->Email Settings app and created a mail account with an smtp server. Now I am able to use mailx, mutt, and sendmail -- all send email correctly to the external server.
But I don't like being reliant on the GUI apps and wanted to know how this was done -- what system config files were affected. Assuming that my "smtp.xxx.com" server should show up somewhere, I grepped /home, /etc, and /var, but can't find it anywhere. On a whim I went into Evolution, deleted the mail account, and rebooted, but email STILL works. Where is this configured?
[Code]...
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