Questions tagged [dovecot]

Dovecot is an IMAP and POP3 server for Linux

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dovecot oauth2 strange error

i have set postfix+dovecot to work with an external authentication server (keykloak) using ouath2 in dovecot but sometimes i get this strange error that i don't understand May 18 18:50:11 mail dovecot[...
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Mailboxes on new server don't have INBOX prefix. How can I add it?

My web host moved my account from a cPanel system to a DirectAdmin system. They seem to have messed up my mailbox hierarchy in the move. In Apple Mail I've always had the IMAP prefix set to INBOX. But ...
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How to get Postfix and Dovecot working with an existing Kerberos realm?

I now have a Kerberos realm like MYDOMAIN.CH, an admin server and a principal of root/admin, as well as the realm master password and the root/admin principal password. Now I want to get Kerberos ...
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Dovecot LMTP Permission Denied Error

I am having permission issues with dovecot that all started with updating Ubuntu to 21.10. I am using virtual users and mailboxes under /var/www/mail/{user}/. I am able to send mail all day long but ...
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Two-piece mail server, working out sender_login and verified_recipient validation

TL:DR I'm trying to figure out how to get one postfix server to ask another whether a incoming email's recipient address is valid, or if an outgoing email's sender address is a valid email/alias for ...
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unauthorized access to dovecot services

Recently i was enable mail-relay to 3rd party tool, suddenly i found 1000 of emails are going as a spam everyday to unknown users i disable the mail-relay ,but still we facing some one login our ...
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Dovecot- how to use virtual "All" and virtual "Flagged" mailbox (15-mailboxes.conf)

Using Dovecot with a Maildir set-up, I am trying to get the virtual "All" and virtual "Flagged" mailboxes to work. I have gotten all the other typical mailboxes working (Archive, ...
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Postfix and Dovecot Virtual Mailboxes

I have been setting up a home mail server on my Raspberry Pi using Dovecot and Postfix. This is all very new to me, and I've struggled my way through. Now I'm on to trying to setup virtual mailboxes, ...
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How to allow specific email sender to send only as specific sender(s) when authenticating Postfix against LDAP?

In my Postfix config, I have smtpd_sender_login_maps pointing to a file ldap-senders.cf that contains the following: root@mail:/# cat /etc/postfix/ldap-senders.cf bind = yes bind_dn = cn=...
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postfix/dovecot on ubuntu Thunderbird client can't save messages to sent folder

My problem is that TB can't save messages to the Sent folder In users home directories there are mail folders which in turn have Maildir folders so the actual mail directory for users is mail/Maildir ...
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How to create subfolder on mailbox trough Dovecot

On a CentOS 7 machine running Postfix and Dovecot how would one create subfolder named 'Bulk' in a inbox? Like 'INBOX.Bulk'. I thought to use the maildirmake command but this returns "maildirmake ...
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dovecot is no longer mounted

Problem: can't create new mailbox Postfix+Dovecot relocated to the new hardware, no any software changes Ubuntu 14.04.6 LTS dovecot --version 2.2.9 How problem looks "old" users works ok ...
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Thunderbird/email server slow when firewall is up

In short, I'm running Postfix and Dovecot on a server and everything is working. The issue is that when sending mail with the firewall up, Thunderbird hangs for about 10 seconds before sending a ...
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Dovecot LDA to deliver to 2 servers at once

I'd like to build robust mail system that can withstand outages. For this purpose I rent 2 servers (lets call it mx1 and mx2) in 2 different datacenters, set up Exim on both as SMTP, and Dovecot as ...
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dovecot pop3 and imap connection closed by foreign host

I started to learn how to setup a mail server, but I stopped to troubleshoot why I couldn't telnet to localhost pop3 or imap. I'm using Centos 7. this my output when I run telnet localhost pop3: root@...
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Where is dovecot installed on Mac?

I am attempting to set up pop3 and smtp server on my mac mini (OS X 10.15.7, Catalina). I found postfix already installed based on the fact that "com.apple.postfix.master.plist" and "...
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Postfix: inbound and outbound relay with store and forward - advice needed

My ISP blocks port 25, so I'd like to setup a store and forward inbound and outbound postfix server (relay-server) that communicates with a mailstore server (mailstore-server), which is unable to ...
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Change mail subject with sieve based on content

I have a mailserver with dovecot and sieve enabled. My bank sends me a mail when an incoming/ougoing transaction is made. However, it's a general subject "Transaction occured", the actual ...
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FInding 'server log' referred to in this postfix error

This is a bit embarassing, but I'm stuck at the first step of debugging a postfix+dovecot setup on Debian after following this guide. Sending email from my server works, but receiving doesn't. I get ...
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How do I create a sieve script in dovecot that sends a vacation autoreply from the userdb, like LDAP?

The sieve vacation described at https://www.rfc-editor.org/rfc/rfc5230 allows a vacation message to be defined and sent by dovecot. By default, the text of the vacation message is hardcoded in the ...
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Dovecot: Relative home directory paths not supported

I got a problem with dovecot, I have an external disk with all the emails in the Maildir format, I mounted this disk in Linux and for each user, I created a symbolic link (with ln -s) and then i ...
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Postfix: Allow sending only from virtual users used by dovecot

So I have set up my postfix server with dovecot according to this tutorial. Receiving emails works fine, sending them too. But these days I had the problem that my postfix started sending emails from ...
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Not receiving emails (no bounced errors) but can send out emails - Postfix, Dovecot, Webmin/Virtualmin

I'm using CentOS with Postfix, Dovecot, Webmin/Virtualmin. I can't seem to receive emails for all addresses for one of our virtual servers configured via Webmin/Virtualmin. But I can send out (and it ...
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Cannot connect to POP3 on Dovecot

I installed Postfix and Dovecot on Ubuntu 18.04. I tested sending and receiving emails via telnet. Everything works from localhost. This is a droplet on DigitalOcean. From any remote system, I can ...
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dovecot configuration with lmtp and vmail user - INBOX directly created in Maildir, missing Junk, Trash, etc. folders

Here's my dovecot.conf (I don't have a conf.d). listen = * ssl = required ssl_cert = </etc/letsencrypt/live/domain.tld/fullchain.pem ssl_key = </etc/letsencrypt/live/domain.tld/privkey.pem ...
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Dovecot 2.2 - can diffie-hellman params file be symlinked to pre-existing one?

I'm installing Dovecot 2.2 (limited to 2.2 in CentOS 8), on a VERY lightweight server (1GB RAM, 1 core). The problem I'm facing is that Dovecot insists on generating its own Diffie-Hellman parameters ...
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Dovecot and two types of password encryption in virtual user's DB field

I need to migrate from Courier IMAP to Dovecot IMAP. Can Dovecot IMAP use two types of encrypted passwords on a virtual user's database password field? I have database with a password field that is ...
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Outlook creates IMAP folders two (or more) levels deep with dovecot ... where are they?

I'm dealing with an issue where messages were stored two levels deep in an Outlook 2016 IMAP profile. The IMAP server is dovecot. Like: INBOX/ folder1/ folder1sub1/ folder1sub2/ ...
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Roundcube issues after server upgrade (Debian 10, PHP7)

I have upgraded my DigitalOcean droplet from Debian 8 to Debian 10, as well as upgraded PHP from PHP5 to PHP7.3. I also upgrade RoundCube to 1.4.2. Everything seems to work fine. I see no obvious ...
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Have sendmail authenticate users against dovecot (or passwd-style files)

I have set up a Debian 10 mail server with sendmail and dovecot+virtual users in preparation of a migration (the old server is also running sendmail + dovecot, but older versions and with "real" users)...
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How can i view mail using doveadm?

I have mail sent to my dovecot inbox and I can see that there are unread emails. If I run: doveadm -f table mailbox status -u bob all INBOX I get: mailbox messages recent uidnext uidvalidity unseen ...
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How to make Dovecot maildir format emails be gziped using zlib

I activate compression plugin by set following on Dovecot: # /etc/dovecot/conf.d/20-imap.conf (...) protocol imap { mail_plugins = $mail_plugins zlib } # /etc/dovecot/conf.d/90-plugin.conf (...) ...
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sendmail does not recognize the local host name

Recently I'm learning Sendmail in CentOS,But I have got some prombles when I am following the tutorial on youtube. I have followed the steps in the video, but when I try to test the Sendmail with the ...
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Postfix/Dovecot mailserver with neomutt

I set up a mailserver on Archlinux with Dovecot and Postfix. I setup a Domain including SSL, MX records, DMARC etc. Everything works fine except that I have trouble using it in Neomutt. To add the ...
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dovecot: I get the certificate on localhost, but not from outside

I had a dovecot/postfix/fail2ban setup running perfectly fine until some days ago: When I connect from outside (e.g. my localhost) I get CONNECTED(000002F8) write:errno=10054 --- no peer certificate ...
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How connect Dovecot with Postfix in docker-compose

I made mail server with this tutorial. Everything works, but I want to put mysql, postfix and dovecot in containers. I used mysql image. I made Postfix container for my own. I have no problem ...
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Thunderbird authenticating with dovecot fails in 0 secs without username

I have set up Dovecot with effective configuration (with dovecot -n) # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # OS: Linux 5.2.15-200.fc30.x86_64 x86_64 Fedora release 30 (Thirty) # Hostname: &...
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Retrieve emails from different folders in Office 365 with getmail in mbox format and Dovecot

I have an Office 365 account who has multiple folders (mailboxes). With getmail I can retrieve all emails from all mailboxes with the following configuration: [retriever] type=SimpleIMAPSSLRetriever ...
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Postfix flush changes messages date

I'm using postfix with dovecot as smtp/imap server stack. Quotas are configured in dovecot for users, but i'm facing a date problem: When messages are kept in postfix queue, frequently cause of imap ...
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Dovecot - exclude LDAP locked accounts

I have installed Dovecot with LDAP; everything works fine except that the users I attempted to lock using pwdAccountLockedTime are still able to login. Here is my ldap.conf.ext file: hosts = myldap ...
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Error when trying to create a self-signed certificate for my mail server

I am configuring my mail server and when I try to create a self-signed SSL certificate something happens. When I first executed the script, an error ocurred which was that the /etc/dovecot/ssl was ...
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Why Thunderbird cannot read root@localhost email?

I'm using Postfix for sending emails, Dovecot as POP3 and Thunderbird. I can't login as root in Dovecot and Thunderbird doesn't show emails of root@localhost while it can show emails of other users. ...
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Multiple mailservers

I am trying to find out if I am attempting the impossible. I have List item 1 IP on 1 cloud server 4 x Domains that I receive mail for 4 x SSL certificates I would like them all on one server. ...
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Using dovecot for submission, how to configure dkim?

All the tutorials that I've found regarding this issue always focus on postfix. But I'm using dovecot as the submission server. I'm under the impression that it does not use postfix to send emails. So ...
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Outlook 2010 and Dovecot IMAP: pst balooning in size

Server: CentOS7 with Dovecot 2.2.36 | Client: Windows 7 with Outlook 2010 After copying all mails from a POP3 account to an IMAP account within Outlook 2010, the .pst was around 65GB (had to edit ...
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Can't login to mailbox using Postfix/Dovecot/MySQL: “Failed to initialize quota”

I'm trying to setup my own mail server and I am stuck on one Dovecot error, “Error: Failed to initialize quota.” Anyone have a solution? Feb 16 01:10:25 outgoing dovecot: imap(ichanged@original....
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A tad confused about mapping virtual users to system users in Dovecot

What I hope to do: Use getmail to grab emails from several of my accounts (gmail, fastmail, Yahoo etc) -> deliver to an instance of Dovecot running locally -> from which I'll use a mail client to ...
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IMAP Proxy to allow an internal server to access emails via imap.gmail.com with dovecot

I need to find a way to set up dovecot as a mail proxy server which is internet facing to allow the internal server to access emails from gmail not really good with dovecot so would be appreciate it ...
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Can't get Activation Mail in Mailchimp with Postfix

I have a postfix-mailserver, which works for incoming and outgoing mail. Everything was fine until I created a Mailchimp-Account. The Activation-Mail wasn't recieved by my postfix-Server. Several ...
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Can connect (telnet, dovecot etc) to my own server from an external network but not when I am on the same lan

I have a server (mail - postfix+dovecot, web - apache) on a kvm guest where the host is on a local network behind a normal router (zte or whatever the ISP provided). KVM guest has an IP on the same ...
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