A IMAP and POP3 email server.

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2
votes
4answers
2k views

Mail server compromised. Yahoo refusing mails

I think our mail server has been compromised. Today morning when I checked, there were 1298 refused mails from yahoo. with this message Messages from x.x.x.x.x(our ip) temporarily deferred due to user ...
2
votes
2answers
328 views

Mail Server problem sending mails to external domains [duplicate]

Recently I have setup a mail server with Postfix, Dovecot and Squirrelmail on Ubuntu cloud server. The server has static ip address with proper MX record(mail.mydomain.net). When I send mail to Google ...
2
votes
5answers
5k views

Recommended Dovecot / Thunderbird to Exchange / Outlook Migration Strategy

We are moving ~60 user mailboxes from a Postfix/Dovecot/Maildir setup into Exchange 2007. I am aware of Microsoft's Transporter Suite, which will allow for an IMAP-to-Exchange conversion of mailboxes ...
2
votes
2answers
69 views

invoke filtering manually in dovecot+sieve

I've configured dovecot with a sieve filtering (also I've configured roundcube, but this does not matter I think). It's working fine, I've set up some filters. But now I've got a huge unfiltered ...
2
votes
2answers
518 views

Postfix with Dovecot configured and send emails with no errors. When sending from a remote client message-id is empty, and emails go to spam.

I have Postfix and Dovecot installed and running on the VPS. Using telnet once from VPS, and once from a client machine, I'm composing exactly the same messages. Everything is working but when sending ...
2
votes
2answers
5k views

Changing IMAP port for Dovecot

I'm running Dovecot to let people access their email on my server. Unfortunately, some are on networks where they can't connect on the normal IMAP port, so I'm trying to change it. I changed the ...
2
votes
1answer
102 views

Installing and maintaining an email server [closed]

I need to move hosting providers for four or five domains and for several reasons I'm considering a Linux VPS rather than staying with my current shared, managed hosting provider. The only thing ...
2
votes
1answer
131 views

Postfix rejects SASL auth when dovecot is down

We're using Postfix with Dovecot and SASL Auth via Dovecot (based on this tutorial). All works like expected. But when Dovecot is down (i.e. for maintenance or other reasons) then clients could not ...
2
votes
2answers
90 views

Imapsync doesn't sync unicode characters properly

I am using imapsync to migrate my e-mail account from a CPanel (courier) mailserver to a Debian/Dovecot one. The issue I am facing has to do with some folders that contain Unicode characters. For ...
2
votes
2answers
3k views

Postfix “AUTH-LOGIN” no longer being offered for smtp auth after upgrade from Ubuntu 10.04 to 12.04.1

After doing a major Ubuntu dist upgrade from 10.04 to 12.04, my virtual-user postfix / dovecot installation only offers "PLAIN" SMTP Authentication mechanism. It used to offer PLAIN + LOGIN ...
2
votes
2answers
10k views

How to start dovecot?

I'm building a web server to host multiple websites. I got everything working except the mail server. I'm using linode to host my vps and I've been following their tutorials. FYI, I'm using Ubuntu ...
2
votes
1answer
2k views

Logging into IMAP (Dovecot) server

I am attempting to login to my IMAP Dovecot server on my Amazon EC2 instance. I am attempting to login as root and I recieve this error in the mail log: dovecot: imap: Error: user root: Invalid ...
2
votes
3answers
4k views

How to configure dovecot as gmail imap proxy

I want to configure dovecot as gmail imap proxy. If any system in my network wants to connect to imap.gmail.com,993 it has to go through the dovecot proxy. Is it possible to setup such environment ...
2
votes
1answer
71 views

Dovecot SSL Certificate is not accepted

I have certificates issued from StartSSL, which is a trusted authority for certificates, and my websites work with its certificates with no problems and no complaints from all browsers about any trust ...
2
votes
2answers
1k views

Postfix Connection Timed out

I used the tutorial below to setup postfix and dovecot on a Digital Ocean server. But I'm getting "Connection Timed out" when postfix/smtp tries to deliver an email to a remote host like gmail or ...
2
votes
1answer
3k views

How to automatically forward mail with Postfix/Dovecot?

I set up Postfix/Dovecot with MySQL on a Linode instance from this tutorial, and I am now trying to forward all email that comes to someaddress@mydomain.com to anotheraddress@anotherdomain.com ...
2
votes
2answers
1k views

Dovecot, POP3 and Gmail

I setup Postfix and Dovecot on a new Ubuntu box following these directions. From a client machine, I validate that POP3 seems to be working telnet mydomain.com 110 +OK Dovecot ready. USER ...
2
votes
1answer
1k views

mail delivered then removed in postfix

I just installed and configured Postfix/Dovecont + Mysql + PostfixAdmin. When I try to send email from e.g. gmail.com it's delivered but I cannot see it in mail folder. Seems to be deleted. Here is my ...
2
votes
1answer
318 views

Dovecot Admin login

Does Dovecot allow me to authenticate as an administrator for all user accounts? Essentially log into any account as an administrator. I'm trying to setup Zimbra and I would like to migrate our IMAP ...
2
votes
8answers
1k views

I just painted myself into a corner with Exim/Dovecot/Spamassassin/Postfixadmin/etc/etc/etc

I'm a sysadmin for a smallish ISP, and we have our own mail server (qmail, of all the godforsaken things) that serves mail for about 300 domains and 5000 users in total. It's running out of disk ...
2
votes
1answer
77 views

SASL PLAIN authenticating with primary domain, but not with virtual domain

Postfix + dovecot and sasl. Works so far with 1 domain. Added a virtual domain. Incoming mail for this works. Outgoing however has SASL authentication failing. Why does it fail I don't know. ...
2
votes
1answer
152 views

Postfix/Dove copy incoming outgoing emails

I have to copy a mail account's incoming and sent mails to another mail account on the same server as well. How can I do this? The server is a debian wheezy running dovecot, roundcube and postfix. ...
2
votes
3answers
989 views

Postfix: SASL authentication failure: cannot connect to saslauthd server: Permission denied

I had a Postfix/Dovecot server up and running for about a week until I had to reboot it. When I did, things stopped working. I've been up searching for hours to no avail. IMAP successfully ...
2
votes
3answers
759 views

Postfix/Dovecot relay access denied

I have a mail server (Postfix/Dovecot) set up with the following configuration: email goes to a local mailbox for each virtual user, and is also forwarded to a Google Apps address (e.g. ...
2
votes
1answer
125 views

Thunderbird disconnecting from Dovecot

I'm managing a Dovecot POP3 server which serves large number of users. Some of these users are in remote locations. I'm getting reports about users whose Thunderbird clients show the number of mails ...
2
votes
1answer
2k views

dovecot & imap folders

I've got a question about Trash/Drafts/Sent folders. By default when I created mailboxes via ISPManager panel, it wast Inbox.Sent, Inbox.Trash, Inbox.Drafts. which I didn't like because having sent ...
2
votes
2answers
1k views

How define sieve_global_dir in dovecot's sieve-test

I created a few sieve (dovecot implementation) filter scripts and want to test them using sieve-test. All scripts which are using global includes are failing with the following message Error: sieve: ...
2
votes
1answer
579 views

How to make dovecot not ask passwords from localhost?

I have set up dovecot server and I'm currently using offline imap to sync my gmail to the dovecot imap running on the localhost. Currently I'm using plain text authentication, but this results in ...
2
votes
4answers
2k views

How Do I Debug An IMAP Problem?

I am setting up an email server with Postfix and Dovecot. Remote email clients can read email, but cannot reply to it or send new messages. (Email clients local to the server receive and send email ...
2
votes
1answer
93 views

Postfix/Dovecot: SASL LOGIN authentication aborted

I use Postfix together with Dovecot (auth/LMTP) on my mailserver. Everything is working fine, but I notice several warnings in the log-files each day: postfix/smtpd[4169]: warning: ...
2
votes
1answer
357 views

Installation of Postfix and Dovecot Mail Server on Ubuntu and Postfix will not start

Information on the Mail Server Installation Process Followed... Hello I have a server with DigitalOcean that I am trying to install an email server on so I can add and manage email accounts. This is ...
2
votes
1answer
190 views

Postfix SASL with Dovecot and Authenticated Smarthost

I have a bit of a problem; I have configured postfix to use dovecot for SMTP AUTH, therefore I had to specify dovecot authentication in the main.cf file. The problem is, I need to also authenticate to ...
2
votes
1answer
618 views

New Dovecot install not allowing login, giving permissions error despite saying that permissions “appear ok”

I'm installing dovecot onto a Virtualbox VM running Ubuntu Server 64-bit 14.04 guest. Dovecot itself is being installed into a Docker container (I'm not sure that that's relevant here, but am noting ...
2
votes
2answers
118 views

How to use usernames instead of e-mail addresses for Dovecot login?

I have a mail server set up on a Debian 7.2 machine running Dovecot 2.1.7 and Postfix 2.9.6. I have both Dovecot and Postfix set up to load virtual users from a database populated by Postfixadmin. ...
2
votes
2answers
3k views

Postfix/Dovecot permissions on new files in a mailbox

According to this article: When creating new files inside a mailbox, Dovecot copies the read/write permissions from the mailbox's directory. I'm not seeing this. Here is what I'm seeing: ...
2
votes
1answer
3k views

Centos 6 Mail Server / Can't receive e-mails but can send

I recently set up my server using Centos 6, with ISPconfig 3 with httpd, php, mysql, mail server. I can create e-mail accounts in the control panel, And I successfully can log in to the webmail, I ...
2
votes
1answer
900 views

Relay Access Denied (State 13) Postfix + Dovecot + Mysql

So we have been scratching our heads for quite some time over this relay issue that has presented itself since we re-built our mail-server after a failed Webmin update. We are running Debian Karmic ...
2
votes
1answer
3k views

Couldn't drop privileges: User is missing UID (see mail_uid setting)

I'm hoping I can use some help. I'm configuring dovecot_ldap, but I can't seem to be able to get dovecot to authenticate the ldap user. Below is my config and log info: hosts = 192.168.128.45:3268 ...
2
votes
1answer
298 views

User-trainable spam filtering with Exim and Dovecot

Currently I'm using Exim to deliver mails via dovecot-lda into Dovecot mailboxes. I'd like to add spam filtering, but I don't want to reject false-positives in Exim, and I want to train the bayesian ...
2
votes
1answer
681 views

Postfix & Dovecot - can't receive email - status=bounced (unknown user: “some.name”)

I have Postfix and Dovecot running. Postfix is set up to use Dovecot as mail transport. Everything is pretty much by book but every received email is bounced back. I am testing the mail server from ...
2
votes
1answer
482 views

How can I make exim deliver a single incoming mail to multiple local maildirs?

I'm maintaining an IMAP server running FreeBSD which uses exim 4.80 as its MTA. Right now I try to create an email alias so that I can address all users of the system for informing them about ...
2
votes
2answers
155 views

On OS X Server, only admin users can access email

In OS X Lion Server, when I create admin users via the workgroup manager, they are allowed to log in remotely via ssh and they get email served by dovecot. However, if I remove the option "user can ...
2
votes
2answers
2k views

Dovecot Virtual Users and Users Domain Mapping

I have successfully compiled, configured and ran Dovecot with virtual users feature. Here's part of my /etc/dovecot.conf configuration file: mail_location = maildir:/home/%d/%n/Maildir auth default ...
2
votes
1answer
183 views

~/Maildir vs /var/mail for e-mail storage

I run a mail server with Exim4 and Dovecot. Currently mail goes to ~/Maildir. However, I am wondering what the relative advantages and disadvantages of storing mail in /var/mail/$user/ is. Is one ...
2
votes
1answer
81 views

Trackdown who is sending emails

I have a sendmail + dovecot setup on my server, there are some "strange" emails on email queue. Every email must be sent from a authenticated user and those strange emails don't belong to domains ...
2
votes
1answer
1k views

Mail Server setup under Mac OS X Server Snow Leopard (10.6)

I'm currently setting up a number of new Xserve boxes running Mac OS X Server Snow Leopard. One of these machines will be replacing our current (ageing) Linux mail server. The Linux box is running an ...
2
votes
0answers
14 views

Dovecot: using a separate passdb per service

Situation: one front-facing server running Dovecot as IMAP/POP3/ManageSieve proxy, a mixture of IMAP servers (Dovecot, Exchange, ...) in the back-end. Dovecot's passdb does lookups against MySQL which ...
2
votes
1answer
100 views

Postfix with Dovecot: local and virtual users

I just finished setting up a Postfix SMTP and Dovecot IMAP/POP3 server. It works perfectly fine for virtual users both sending and receiving, but I need to do the following: Besides virtual users ...
2
votes
1answer
32 views

Dovecot 2.0.7 postlogin script not getting plain_pass

We are currently setting up a postlogin script to pass credentials to a script for syncing mail to another server cluster in preparation for a migration. The server we are setting this up currently ...
2
votes
1answer
74 views

Why dovecot 2.2.13 is not moving emails from new/ to cur/?

I am using dovecot 2.2.13 on gentoo 64bit. When new email arrives it stays in new/ directory instead to be moved to cur/ directory. I read that maildir_empty_new = yes was added to ...