A IMAP and POP3 email server.

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1answer
779 views

DOVECOT not allowed to log in using too low UNIX UID

I found this error on mail.log May 13 22:11:37 vmi2115 dovecot: dovecot: User admin@example.net not allowed to log in using too low UNIX UID 103(postfix) (see first_valid_uid in config file) How ...
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2answers
31 views

Serve emails from a folder structure using dovecot

I have a lot of eml files, archived from an account, and stored in a bunch of folders, one per month. It's not a standard maildir structure, and the files don't have special names, they're just like: ...
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4answers
76 views

Set up the right mx records for postfix/dovecot server

I recently set up a postfix/dovecot mail-server on my VPS (OVH), but for some reason I cannot receive e-mail through it. Is anyone able to check my DNS-records and my Postfix/dovecot configuration to ...
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2answers
81 views

how to list Dovecot imap prompt commands?

When I do imap pre-auth with: /usr/libexec/dovecot/imap -u username I can see imap prompt but do not know how to list available commands (like e logout or b select inbox and so on). How to list ...
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1answer
563 views

dovecot error Unknown setting: unix_listener

I'm trying to enable postfix auth. I'm editing the this section from /etc/dovecot/conf.d/10-master.conf # Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0666 user = ...
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1answer
372 views

cannot connect to postfix with a mail client

I have been trying to setup MX in my server and was able to get the IMAP part working under SSL using Dovecot, however I can't get the SMTP part working using Dovecot as the SASL Authentication. When ...
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2answers
4k views

Dovecot IMAP authentication failed

Whenever I'm trying to connect to my Dovecot IMAP server, it gives me a message that the authentication was failed. This message is from the /var/log/mail.log file: Feb 7 15:22:17 celestine dovecot: ...
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1answer
9k views

Postfix returning “no SASL authentication mechanisms” despite mySQL auth config being seemingly valid

I am trying to set up a mail server that has multi domain support using Postfix+Dovecot+mySQL. I was following this guide. I seem to have everything set up and the server is sending the dovecot ...
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2answers
2k views

2 factor authentication for Dovecot/Postfix / SSH / PAM

I'm wondering if there is some kine of 2 factor authentication module which supports PAM. My dovecot(PAM), postfix(SASL) and openssh authenticate via PAM to the system users. I would like to have it ...
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1answer
2k views

Configure Dovecot to only let localhost connect via imap

How do I configure the Dovecot message delivery agent to only allow imap connections from localhost?
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5answers
1k views

Experience with dovecot mail server/roundcube web mail client [closed]

I'm currently building a web server with a mail server: Debian Lenny Apache 2.2 PHP 5.3 Dovecot Postfix I am unsure of which mail client to use. I have my eye on roundcube since it looks cooler ...
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2answers
2k views

Dovecot corrupted transaction log file is delaying email

We're running dovecot as an IMAP server and postfix to deliver mail. One of our users is complaining that email is gettin delayed (no we're not using grey listing or anything like that). ...
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1answer
39 views

Dovecot not running quota sql query

I'm trying to configure dovecot to handle quota limits. I have followed a guide and configure the right steps. I even compared them with our current mailserver. The problem is, Dovecot doesn't ...
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1answer
157 views

com.sun.mail.iap.protocolexception no login methods supported

A JavaMail app and dovecot/postfix/mutt are running on the same CentOS 7 physical serverbox. This JavaMail app was able to reliably import emails via IMAP using the same exact code until some changes ...
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1answer
74 views

Migrating messages from an old mailserver to a new (courier)

So I have a linux box running Postfix/Courier for use as a mailserver, using Roundcube as a front-end. User accounts are setup in the usual Maildir, with cur, new, and tmp folders. I had an older ...
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1answer
698 views

Dovecot: “Warning: service(imap-login): process_limit reached, client connections are being dropped”

I've been seeing this warning in the last few months, when my email client is unable to connect to our dovecot IMAP server. Warning: service(imap-login): process_limit reached, client connections ...
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1answer
79 views

Cannot send email to info@ or support@

I am trying to send email from my gmail account to a couple user accounts I have on my new Centos server. The email is setup correctly and I can send receive from accounts ok except info and support. ...
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2answers
292 views

is there something similar like sa-learn-cyrus for dovecot?

I was looking whole morning and found nothing. I have a debian box running dovecot IMAP. I want to train the spamassassin with the users spam folders. is there something similar like sa-learn-cyrus ...
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2answers
239 views

Postfix, Dovecot - connection from outside, authentication

I want to run postfix + dovecot on my server. I'm doing it for first time. Postfix and Dovecot works on local - I can connect through telnet, and send/receive e-mails using commands. When I try to ...
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2answers
4k views

Dovecot configuration error (Permission denied) - Email for root

I have setup a local user called postman and logged into it using Thunderbird (IMAP). Following is being shown in the mail error log. Dec 14 23:45:18 ams1 dovecot: lda(root): Fatal: Invalid user ...
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2answers
1k views

best practice to have sent mail folder on dovecot imap server

When I add a mail account to KMail (or most other MUA I suppose) the sent mail folder is on the local machine and I don't have my sent mails on other machines. I'd like to have a sent mail folder in ...
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2answers
128 views

email server: refuse old emails and emails in the future

I use postfix, dovecot 2.1 and amavis for my emails. How can I refuse emails (from other email servers) that date are to old (e.g. >=1 month) or to new (eg. >=1d in the future)?
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2answers
125 views

imap user restriction

I have 50 email users (virtual users) using Dovecot, Postfix and Squirrelmail with CentOS 6.0. I want to allow some users to have access to POP and IMAP globally, and for the remaining users from my ...
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2answers
2k views

Postfix not working

A while ago I installed the postfix mail server on my ubuntu 10.04 VPS. At the time it was working good but now it's just stopped working. I was trying to enable SASL authentification and somewhere it ...
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2answers
487 views

Create email accounts independently from passwd using Dovecot and Postfix

How would I set up Dovecot and Postfix to use a different user database than passwd for the email accounts? I'd would like to have separate accounts for user, who can actually log in via ssh, and user ...
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2answers
2k views

Why doesn't dovecot accept a SSL certificate?

I trying to setup a mail server on my server, I followed the following instructions: https://help.ubuntu.com/10.04/serverguide/C/certificates-and-security.html ...
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1answer
3k views

Exim authentication using Dovecot driver

Been following the instructions at the Dovecot Wiki for setting up Exim to share authentication credentials with Dovecot. I have setup Dovecot to deliver mails for virtual users and setup a router ...
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1answer
475 views

How do I check if dovecot is being used?

I want to remove an old version of MySQL (using rpm) on a RHEL4 server and I found that a dovecot package depends on it. If dovecot is not needed then I could remove that too. How can I determine if ...
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4answers
10k views

Ubuntu 9.04, Postfix, Dovecot, Squirrelmail, and vacation/away messages

I'm attempting to set up a mailserver for a small office. FYI, we're replacing Kerio Mailserver on OS X with Postfix, Dovecot, postfixadmin, and Squirrelmail on Ubuntu Jaunty (9.04.) I installed the ...
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4answers
3k views

CentOS/Dovecot/Postfix server doesn't allow external email clients to send email ANYMORE

I've been running a CentOS/Dovecot/Postfix box as an email server for a while with no complications. A few weeks ago users stopped being able to send emails through external clients. They can read an ...
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1answer
27 views

How do I move a Maildir to a subdirectory of another user?

When an employee has left the company I want to move their entire Maildir to be a folder in an "old employees" account. Given that Maildir uses the filesystem exclusively, I feel it should be ...
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1answer
54 views

mail client Thunderbird does not read new mails from dovecot/postfix mail server

I run a server: Debian GNU/Linux 7.8 (wheezy) and used the default mail system (exim) for mails with regular users (no vmail). Mail system did not work properly for some users, so I removed exim and ...
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1answer
51 views

Configure roundcube login by hostname

I recently installed Roundcube on my Centos6/postfix/dovecot server. Default install works great but I am trying to configure some options that I cannot seem to figure out. My end result would be a ...
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1answer
55 views

Dovecot antispam plugin does not get triggered

I've got an issue with the antispam plugin using dovecot 2.1.7 and dspam 3.10.1. I think, the antispam plugin does not recognize the Junk-Folder because the log reports Mar 25 13:11:22 mail imap: ...
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1answer
59 views

Postfix + mysql: virtual_users combined with a catch-all in virtual_aliases

I have a Postfix (and Dovecot) server running, using MySQL to define the domain names, users and aliases. This is all running fine, but now I want to add a catch-all to a domain where I already have ...
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1answer
101 views

Postfix - relay locally generated mail but accept mail incoming from GApps for the same domain

I know the way to disable all local delivery is to remove the domain from "mydestination", which will cause all mail to be relayed through whatever relay I setup. But I want postfix to accept all mail ...
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1answer
226 views

Authentication with Dovecot, SHA512, and salts

I have a database that has a username, password, and password salt in it. The password is hashed using SHA512. The data in my users database looks like this: user = testuser password_hash = ...
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2answers
166 views

Can't receive mail with postfix virtual alias

I can't receive mail on the virtual aliases (normal email works in and out), i didn't try the virtual domains but that's what i was going for to get to work. So i have a Debian Wheezy 7.8 Build: ...
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1answer
300 views

Postfix → Dovecot LMTP: User does not exist: uid@domain

I am trying to have Postfix deliver local mails via Dovecot's LMTP (among other things to replace procmail with sieve). Up to now, I've been using mailbox_command = procmail - a "$EXTENSION", ...
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1answer
303 views

Maildir “new” has messages but Inbox is empty

I'm installing a new mail server (Postfix/Dovecot+Maildir) in a fresh OS. Using Thunderbird (or Squirrelmail) I can send mails but my inbox is empty even when I can see them in ...
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2answers
103 views

Use Fail2ban to block proxied dovecot password attempts

I've searched around a great deal with this, but can't manage to come up with a solution. The easiest way of explaining it, is I used to have just 1 email server, now I have 2. The 1st email server ...
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1answer
115 views

How to move properly from Postfix/Dovecot to Google Apps

here is the situation: we had a mail server configured within a VPS (using Postfix/Dovecot) with the mail for 1 domain being managed. We just moved the mail for that domain to Google Apps. The MX ...
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1answer
46 views

wildcard certificates for linux mail servers

I would like to publish non-self-signed SSL certificates for some linux mail servers, which operate SSL and/or TLS mail services. (If relevant, these are dovecot+sendmail servers.) I need to cover ...
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2answers
742 views

Dovecot namespace prefix relation to underlying Maildir structure

I am trying to figure out if/what there is a connection between the file-system structure and dovecot's namespace prefixes. Specifically, in my setup, I have not declared any namespace, so dovecot ...
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1answer
140 views

Unable to lock error message in SMTP Server

I've the following error message appeared 3 continuous for the same mailbox > (delivery failed to mailbox > /var/spool/postfix/vhosts/<user>/mail/inbox: > > unable to lock for ...
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2answers
53 views

Dovecot/Postfix cheat on an email that I wrongly received

I played with /etc/aliases and received the email of a coworker. I would like to put it back on his mailbox. Is there a way to do that cleanly ? I don't want to transfer the email, and if possible if ...
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1answer
226 views

Incomplete parameters passed from Postfix to Dovecot during AUTH PLAIN transaction

I'm migrating from an old CentOS box to a new Ubuntu server. I have a working Postfix/Dovecot/PostfixAdmin/SpamAssassin/Clamav system working on CentOS, and am trying to simply replicate the same ...
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1answer
158 views

Postfix alias and “impersonating” issue

I recently started configuring addresses on my postfix server and stumbled into an issue with my colleagues. So assume i have an alias testing@bar.ru which forwards mail to screatch@gmail.com and ...
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2answers
252 views

Allow IMAP for Roundcube and as external service only for some special users. How to configure?

It's easy to set up a special passdb query in dovecot to restrict IMAP access to certain users, e.g. see this documentation on the dovecot wiki. But when I use a webmailer like Roundcube and want to ...
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1answer
1k views

Dovecot creates folder, Postfix expects file

I have tried configuring a Postfix/Dovecot combo with virtual users using this guide. My server is running Postfix 2.6.6 and Dovecot 2.0.9 on CentOS 6.5. The problem is that when I connect to the ...