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Questions tagged [dovecot]

An IMAP and POP3 email server. When asking about Dovecot problems, please include relevant maillog lines and output of the following command: `doveconf -n`

Dovecot is an IMAP and POP3 server for *nix systems. It emphasizes security, and is also easy to set up and use, as well as having high performance.

More information about dovecot is available at http://www.dovecot.org/

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For fresh Linux setups, do we still have to worry about Heartbleed, Logjam, etc.?

There was a period a while back when a bunch of serious vulnerabilities were found. Heartbleed, Logjam, POODLE, FREAK, etc. Nothing major like that has come up during the past year. Question: If I setup a brand-new Linux VPS today with say Ubuntu…
SUPower
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Sender address rejected: not owned by user

I've a Postfix installation in my SBC running Parabola GNU/Linux-libre (Arch and ALARM-based) plus Dovecot. It works pretty well, and I've set up an account in Thunderbird. The only issue I've found is that when sending emails I get: Sender address…
Megver83
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Postfix not receiving mails from outside the localhost

I've a Postfix + Dovecot set up in my Parabola (Arch based) installation. It looks like it works, I can send emails to any address and it works, and also receive mails but only from local addresses. If I do mail my@domain.org, I get the email (like…
Megver83
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dovecot doesn't calculate quota of ~Maildir/.INBOX

doveadm quota get -u user01@domain01.org Quota name Type Value Limit % User quota STORAGE 1323 10240 12 User quota MESSAGE…
Pol Hallen
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dovecot 2.x doesn't work with @domain1.org authentication

cat /etc/dovecot/conf.f/10-auth.conf [...] disable_plaintext_auth = no auth_username_format = %n-AT-%d [...] or also using %u variable (full username (e.g. user@domain) cat /etc/dovecot/conf.f/auth-passwdfile.conf.ext [...] passdb { driver =…
Pol Hallen
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Dovecot pw generation mismatch

According to Dovecot's wiki, a SHA256 scheme is the sha256 sum of the password stored in base64. $ doveadm pw -s SHA256 -p "test" {SHA256}n4bQgYhMfWWaL+qgxVrQFaO/TxsrC4Is0V1sFbDwCgg= but it does not match the output of this command : $ echo -n…
Gradient
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Dovecot dsync replication setup

I'm using dovecot with master/master replication using dsync, and I did the setup as described on https://wiki.dovecot.org/Replication What is total unclear to me, and I could not figure it out until now. Do I have to setup the replication in both…
holger81
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dovecot mail storage auto detection failed

I setup a new user called sales, and gave it a password. Although it has a home directory, i set login to /sbin/nologin. dovecot: pop3-login: Login: user=, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=12938, secured,…
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postfix not working correctly after system upgrade (no SASL authentication mechanism)

I had a working postfix/dovecot configuration running on a Ubuntu Server machine 14.04 LTS. Then I made a upgrade to 16.04.2 using do-release-upgrade. Everything seemed to work besides my mail service. Before the update everything worked but now I…
C0dR
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Postfix - recipient_delimiter to mail folder

I am using postfix, the LDA is dovecot and i found the useful parameter recipient_delimiter in the man page of postfix. I would like to use mail addresses like user+folder@domain.com and the mail server should automatically move the mail into the…
user2933212
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Blocking empty subject line emails from being sent or received?

How can I configure Postfix, Dovecot, and/or SpamAssasin to reject all incoming and outgoing emails with empty subject line emails? I am running on a Debian 8.6.
KingsInnerSoul
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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 in bulk. However, there is a concern about how…
Avery Payne
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Dovecot configuration issue: Aborted login (no auth attempts in 0 secs): user=<>

I've set up a test server per the tutorial on https://arstechnica.com/information-technology/2014/02/how-to-run-your-own-e-mail-server-with-your-own-domain-part-1/ The problem is in trying to login with Thunderbird (or any client). Thunderbird…
williamk
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< hostname[private/dovecot-lmtp]: 550 5.1.1 User doesn't exist: alias@domain.tld

This is the setup of my mailserver: Big picture: MTA: Postfix 2.11.3 - MDA: Dovecot 2.2.13 - DB: Postgres 9.4.10 - OS: Debian 8 Jessie, kernel 3.16.0-4 postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain…
ole
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Many authentication failed logins for "good" users

I have recently notice that my server was reporting at mail.log a lot of bad authentications for know users, and its not a brute force attack. And i really dont know the cause of such authentications. I have users using, Gmail App, Mail at IOS, Mail…
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