General :: Setup A Functioning Imap And Pop3 Mail Server Using Dovecot-postfix?

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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General :: Failed To Start Dovecot POP3/IMAP Server?

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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Server :: Dovecot: Local User Can't Login Imap And Pop3

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=, lip=, mpid=0, secured

#passdb {
# driver = pam
# [session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>]
# [cache_key=<key>] [<service name>]


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CentOS 5 Server :: Starting Dovecot Imap: Fatal: Protocol Pop3 Given More Than Once

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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Ubuntu Servers :: Setup Postfix Mail Server And Courier-imap/pop

Feb 23, 2010

Setup my postfix mail server and courier-imap/pop. My postfix server now is working with tls and saslauthd, I can send/receive email inside my domain as well as outside. However, I need two separate smtp and imap/pop3 server, I mean two machine - one with smtp function and one with imap/pop3 function working together.

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Server :: POSTFIX Without IMAP/POP3?

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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Fedora Networking :: Setup A Single Imap Server To Pop3 Service ?

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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Server :: Dovecot IMAP And Subfolders - Mac's Mail Application And Thunderbird - Both Come Up With Error

Mar 18, 2010

I'm running Dovecot version dovecot-1.0.7 on CentOS 5.4. I'm trying to create subfolders and I can't. I've tried Mac's mail application and Thunderbird; they both come up with an error, basically saying that the server doesn't support level one folders(subfolders). Squirrelmail can't create subfolders neither. I did some reading and thought that perhaps the problem lies in the /etc/dovecot.conf file; specifically with the "mail_location" directive. I currently don't have that directive active which means Dovecot uses defaults settings: saving users' mail in the %u/mail folder. Is there any way to configure Dovecot to use subfolders?

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Server :: Configure Mail With Postfix & Cyrus-imap - Cannot Send Mail Through Command Line

Nov 19, 2010

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.


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General :: Using Dovecot IMAP To Access User Mail?

May 24, 2010

I am having some trouble finding the information i need, here is what i am trying to accomplish.

1. Download POP email messages from using fetchmail and assigning them to account "cody"

2. Connect and view the emails via IMAP using dovecot server logging in using "cody"

So far i have the fetchmail part working fine, but i cannot see any emails in the inbox. The messages are going thru however as they are visable in MUTT. i have edited my /etc/dovecot/dovecot.conf to change the mail directories, but no luck

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General :: Setup Dovecot To Use Imap?

Mar 20, 2011

I just setup dovecot to use imap. I'm using the same cert and key that I'm using on Postfix smtp over ssl. It's a self signed cert. After running this

openssl s_client -starttls imap -connect localhost:993
I get this


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Server :: Postfix / Dovecot Help On New Setup

Mar 20, 2011

CentOS 5 box was just setup to replace a crashed old one. I have postfix.admin installed and working, added users (confirmed from mysql command line) and can login using telnet server pop3 with the user information. The problem I am left with is just receiving mail. I have both squirrelmail and roundcube installed, and can also authenticate using both (/var/log/maillog shows);From either webclient I can naturally send mail out and both yahoo and gmail client confirms, yet a reply shows nothing, and nothing ever shows in the maillog. Firewall is shut down but I don't know postfix enough to see how to test, or is something else grabbing the mail.

I can provide anything necessary, just let me know what. As I see it (just so far) Postfix should be the server that answers and receives the mail, dovecot is more the pop/imap the client would use, so I think it's a postfix issue. If so, can I turn up the debugging, etc. but again, I think all mail received should appear in the maillog file 1st as I see the outbound mail go fine!

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Server :: Basic Postfix And Dovecot Mail Server For A Test Environment?

Sep 16, 2009

I did a a basic install of postfix and dovecot instead of using courier-pop and courier-imap. This is only send and receiving e-mail locally within the test network 10.7.0.X and 10.0.0.X. I used:


my postfix.conf is;

PHP Code:


This is the error when I send an email from a local machine on the 10.0.0.X network.

PHP Code:

Jan 20 17:05:48 testbox postfix/smtpd[2491]: warning: Illegal address syntax from unknown[] in MAIL command: <test@> 

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Server :: Can't Download Messages From Mail Server (Dovecot, Postfix)

Sep 29, 2010

I am running Fedora 10, Postfix and Dovecot I recently changed the password of a user using the 'passwd' command. The problem is that the user can no longer receive their email messages in Thunderbird (Authentication Error). However, they can still login using SquirrelMail and get their mail.

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Server :: Postfix+dovecot Closed Community Setup?

May 22, 2010

I have a Postfix+Dovecot and virtual users setup taken from here. I've got virtual users authenticating using a password file. But I'd like to lock the service down further, so authenticated users can only email other authenticated users (those listed in the same password file) - so it's a closed community. I don't seem to be able to stop authenticated users mailing outside the community.

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Server :: CentOS Mail Server - Dovecot & Postfix

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 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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Fedora Servers :: Retrieving Mail From POP3 Boxes And Inserting Into Dovecot?

Apr 28, 2009

I have recently set up a mail server running dovecot and everything is fine. However, I now want to retrieve the contents of 2 pop mail boxes and insert them into the IMAP structure under dovecot. I need to check for spam and sort them according to sender and recipient.

What is my best software option for retrieving the mail?

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General :: Download Mail From POP3 Server To POP3 Server?

Jan 19, 2010

How can I download Mail from Dovecot POP3 Server to new Dovecot POP3 Server of all users and will always run every minute. I've tried fetchmail and getmail but only in one user and need to run fetchmail or getmail to retrieve new emails.

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General :: Can't Send/receive Mail Using Postfix/Dovecot On CentOS 5?

Apr 18, 2011

nstalled Postfix + Dovecot + Roundcube on a plain CentOS 5.5 box, let say on "".I cant send or receive emails. When I try to telnet from both localhost and from the outside world, it can not reach the mail server.Testing itself on port 25:

[root@srv-estudio:~]telnet 25
Trying 200.40.xx.xx..


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Ubuntu :: Postfix / Dovecot Config - Send Mail From Iphone Using An Account On Server Doesn't Work

May 15, 2010

the mail server itself will receive mail, that part works. i'm using dovecot imap to grab my mail, that works. but if i try to send mail from my iphone using an account on that server it doesnt work. this is what i see in syslog: May 15 07:14:52 coax postfix/smtpd[1432]: NOQUEUE: reject: RCPT from[]: 450 4.1.8 <>: Sender address rejected: Domain not found; from=<> to=<> proto=ESMTP helo=<[]>

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Debian Configuration :: Install Courier-pop3 And Dovecot-pop3 Simultaneously ?

Apr 16, 2010

For long-term migration from courier to dovecot I would like to install courier-pop and dovecot-pop3d simultaneously. Aptitude offers me to install one, by removing the other, only. Can this be done without creating problems for the package manager and future upgrades? And why if not?

The following NEW packages will be installed:

The following actions will resolve these dependencies:

Remove the following packages:

Score is -170

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Ubuntu Servers :: Cannot Receive Mail On Dovecot / Postfix

Mar 10, 2011

I do not know why I could send email outside but not receive. I use relay to my ISP that port 25 is blocked by my ISP. What can I doing with configuration when it should be works to receive mail? Okay, I have sent a test e-mail between localhost and it works. I can send from mailserver to my gmail without problem. So why I cannot receive email from gmail?

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Server :: Limiting POP3/IMAP Access Frequency?

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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Software :: Postfix - Delivers Mail To Unix Mailbox But Not IMAP?

Dec 22, 2010

I setup a postfix mail server. Tested it to make sure it was secure and all seemed good.I sent some test messages and see from the logs that mail is being delivered to the recipient. its only delivering mail to my user's local mbox on the linux server. IMAP appears to have its own mailbox and the two boxes are no linked. I was thinking it was an alias issue however I did at one point have the mailboxes to be the same.... now they are different... Here is the config file.... (I changed the domain names for privacy).

command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix


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Software :: Postfix With Dovecot On Ubuntu 9.10 Mail Send Error

May 8, 2010

i installed a new server ubuntu server 9.10 with lamp, etc.

after which i followed the following tutorial to setup

Postfix, DoveCot, Squirell


It was working fine till here. After which i installed the spamassain which also got configured perfectly.

I can send only 1 or 2 mails after which i get error

here is my confid file of postfix


# See /usr/share/postfix/ 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
# is /etc/mailname.


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Ubuntu Servers :: Configure A POP3 / IMAP Proxy Server?

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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Ubuntu :: Retrieve Email By POP3 Via IMAP To Home Server?

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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Server :: Block The Particular Pop3 And Imap Port Monitoring In Opennms?

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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Server :: Courier Or Dovecot For IMAP?

Mar 18, 2011

Does anyone know if there are only personal preferences between the two IMAP servers or does one of a slight advantage over the other? I've used Dovecot only in the past but my package manager loads tons of MySQL libraries with Dovecot which is a problem since that's not authorized on my server right now. I can either install it from source or try another application like Courier.

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Server :: Ssl Over Pop And Imap In Dovecot In Rhel 5.3

Oct 13, 2010

i had configures sendmail and dovecote in rhel 5.3, as it was working fine with pop3 and imap, but it will not work for pop3s and imaps .the cerificate is chked with mutt it is fine , on client side i use outlook express/Thunderbird . the ports status shown as listening . moreover the certificate was not trusted by the clients. is there any more setting i have to do .

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