A IMAP and POP3 email server.

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3
votes
1answer
193 views

Should Postfix run chrooted if it already is in it a FreeBSD jail?

I'm running Postfix together with Dovecot and a few milters in a FreeBSD jail. Is there a significant security gain when I run SMTP and SMTPD daemons chrooted as well?
3
votes
2answers
87 views

How can I fire off a script every time a particular user receives an email?

I have a (Linux) mail server that consists of postfix for receiving mail, amavisd-new for content filtering (using clamav and SpamAssassin), and dovecot for delivery and IMAP. I'd like to set things ...
3
votes
1answer
3k views

Dovecot Certificate Authentication

After implementing certificate authentication on Nginx web server, I would like to do the same on Dovecot mail server. The idea is to create your own CA and manage certificates (both issuing and ...
3
votes
2answers
428 views

In Postfix, how do I measure how much traffic is used by each user or domain?

In Postfix, how do I measure how much traffic is used by each user or domain? I can see no "out of the box" means of doing this with vanilla postfix, however, I am sure this is a pretty common need. ...
3
votes
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 ...
3
votes
1answer
467 views

Dovecot says: “Requested CRAM-MD5 scheme, but we have only CRYPT” yet CRAM-MD5 is available

Following upgrade of Fedora Core 16 to Fedora Core 21, the new Dovecot installation isn't authenticating correctly and it's not at all clear why. We have 50+ email accounts served by this server, so ...
3
votes
2answers
633 views

postfix+dovecot multiple domains config

I'd like to setup 2 distinct mail services (that look completely separated for end-user) on one machine with 2 IP addresses and 2 domain names. I've started with my current config which is a postfix+...
3
votes
1answer
437 views

Mail server hammering

I've noticed a quick increase on smtp connections coming to my server, investigating it further i figured out that there's a botnet hammering my smtp server. I've tried to stop it by adding a rule at ...
3
votes
2answers
3k views

StartSSL cert doesn't work with Dovecot/OpenSMTPD

I've an issue with my StartSSL certificate. When I try to use it to activate SSL encryption on Dovecot, I get the following error in my log when a client attempt a connection to the imap server : ...
3
votes
1answer
449 views

Dovecot Quotas are not recalculated nor is mail rejected if quota is exceeded

I'm trying to set up quotas in Dovecot. Currently Postfix is running together with Dovecot and postfixadmin, on Debian Jessie. The problem I have is that the quotas are not applied, nor re-calculated....
3
votes
2answers
2k views

Dovecot unable to perform mysql query

I have been following the ISPMail tutorials on workaround.org (the 2.9 Wheezy version) and thus far everything has been working fine. When I reached the step to "Testing email delivery" step I noticed ...
3
votes
1answer
4k views

Can't send or receive email with Postfix (times out)

I'm using Postfix and Dovecot on Debian Wheezy for sending and receiving emails. Dovecot seems to work just fine; I can connect, retrieve, move around, delete, etc., emails that already existed in the ...
3
votes
2answers
3k views

Dovecot, IMAP outlook reports error 0x800CCC0E cannot synchronize subscribed folders

I have recently some issues with people using my email server. They have problems with synchronizing folders on outlook, and I can't figure out what to do. I found somewhere that I could extend a ...
3
votes
1answer
1k views

Randomly getting Postfix SSL_accept error / Dovecot TLS handshaking Disconnected

I have this really weird problem since a couple of days/weeks: more and more people are reporting problems connecting to the mail servers (Dovecot IMAP and POP3 as well as Postfix SMTP) in SSL mode. ...
3
votes
1answer
1k views

Postfix and Dovecot - setting up TLS encryption for IMAP

I am able to connect to my Dovecot server and read emails. However I am currently doing it using the "PLAIN" password connection. How can I setup postfix and dovecot to use TLS? From what I recall ...
3
votes
1answer
220 views

Extend Dovecot/Postfix setup with Calendar/Contact Sync

I am currently running a mailserver with dovecot (maildir) and postfix. Now one user has to sync his contacts and calendar with outlook and iOS using our service. The only way to do this seems to be ...
3
votes
1answer
344 views

Postfix/Dovecot - Multiple Domains and Multiple Linux Accounts

I have been trying to setup a new mail server to migrate from my VPS, as my host has decided to close its doors. The old server was running Exim/Courier (nearly a decade old at this point,) and I'm ...
3
votes
1answer
525 views

Wheezy processes die periodically

I have a very weird problem. Certain processes on my mail server, but not all, die periodically (every second month or so). A few of the process that die are: ssh dovecot postfix Processes that ...
3
votes
1answer
12k views

Postfix: 554 5.7.1 Relay Access Denied

My Problem is this: I can send E-Mails from my E-Mail (evolutio@lars-dev.de) to my other Emails like @gmail @web @gmx ... But when I try to send a E-Mail from GMail to evolutio@lars-dev.de I have the ...
3
votes
1answer
983 views

How do I use “catchall” in my postfix alias?

I have this in my main.cnf: alias_maps= regexp:/etc/aliases Inside that file, I have: /^reply*$/: jjj Now, when I send it to reply-124233@mydomain.com, postfix bounces it because Recipient ...
3
votes
2answers
1k views

Is there a way to pause mail delivery in Postfix (accumulate in queue)?

When using combination of Postfix/Dovecot, is there a way to tell smtp server (Postfix) not to store mails on disk but hold/add them to queue until "maintenance finished"? Useful for disk upgrades, ...
3
votes
1answer
832 views

Dovecot throws obsolete warnings, even though dovecot.conf updated on Ubuntu 11

In trying to set up SASL for dovecot on Ubuntu 11, I keep getting obsolete warnings in my log: Sep 10 15:33:53 server1 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:24: ...
3
votes
2answers
7k views

Dovecot: auth sockets permissions

From my postfix setup I'm running deliver as nobody:nobody and it can't connect to auth-worker socket of dovecot. Thats my dovecot config: # 2.0.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-lts ...
3
votes
2answers
2k views

Using ecryptfs encrypted home directories with Dovecot

I have setup home directory encryption on Ubuntu 10.04 machine, but ecryptfs does not seem to be able to work with Dovecot (or CourierIMAP, etc). After successful IMAP login, home directory is never ...
3
votes
1answer
2k views

Can't make Dovecot communicate with Postfix using SASL (warning: SASL: Connect to private/auth failed: No such file or directory)

Solved. I will leave this as a reference to other people, as I have seen this error reported often enough on line. I had to change the path smtpd_sasl_path = private/auth in my /etc/postfix/...
3
votes
1answer
1k views

Postfix sasl: Relay access Denied (state 14)

I have postfix installed with dovecot. There are no problems when I'm trying to send e-mails from my server, however all e-mails that are coming in are rejected. My main.cf file: queue_directory = /...
3
votes
0answers
45 views

I need help trying to authenticate with AD from my linux machine

I am not experienced in this, so there might be some points that I am missing. Initially I tried to setup Cyrus Mail w/ SASL for AD authentication. After several tries, it failed to work. I switched ...
3
votes
1answer
75 views

IDN domain names on IMAP / POP3

I'm setting up a mailserver solution (Postfix, Dovecot) and I'm wondering about IDN (Internationalized domain name) on the IMAP / POP3 side. Should I use the ASCII-encoded (PUNY / ACE) format for ...
3
votes
1answer
859 views

glusterfs and dovecot problems

Ive got two servers with a shared glusterfs disk, both running dovecot and serving mail from this shared disk. Users read mail only from one of these servers but mail gets delivered to both. ...
3
votes
1answer
2k views

dovecot login issue with plain passwords

I am having an odd problem in dovecot, the first time I try to login via telnet dovecot gives a error, the second time it works, both within the same telnet session. This is the telnet session, note ...
2
votes
4answers
3k 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
450 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
1k views

Spamassassin filter systematically produces negative (ham) scores for spam messages

I have problem with lots of spam. My server setup is VPS with CentOS 6.5 and Dovecot+Postfix+Spamassassin. Here is source of one of the messages: Return-Path: <nancy_mitchell@tagbook.co.nz> X-...
2
votes
2answers
181 views

Fixing Poor Email

I'm having an issue with SenderBase. My IPs are not blocked in any BLs but people who use SenderBase/Ciscos stuff do not get my emails. Is this because my email system is setup poorly? They list the ...
2
votes
2answers
479 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
126 views

How to move cur tmp new directories directly in virtual user home?

Reading the Maildir documentation they just mention folder should be like user/Maildir/cur tmp new So my virtual users have it without Maildir folder like: user/...
2
votes
2answers
816 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
3answers
6k 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
121 views

searching for the correct way to compile postfix

I am experiencing issues while compiling latest version of postfix from source code. At the moment I'm trying to compile version 3 because Debian 7 and latest Ubuntu 14,10 (version 2,9 and 2,11 for ...
2
votes
1answer
2k 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 = ...
2
votes
1answer
111 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 that'...
2
votes
1answer
4k views

Dovecot-imapd won't install properly after purging

I have been trying to get a dovecot/postfix server up an running to serve e-mail for my start up business, and I too have fallen victim to poorly written, outdated guides. At first I installed ...
2
votes
1answer
150 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
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
5k 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
242 views

Authenticating SMTP Proxy

I have acquired a number of mail users, and I'm wanting to transition them away from their current mail server and onto mine. I've set up perdition as a proxy which will allow me to proxy IMAP and ...
2
votes
2answers
184 views

Backup maildir to windows cifs share

How can I incrementally backup a maildir to a cifs share without creating a full image each time? I have dovecot running with some large mail accounts. The only backup available is on a Windows ...
2
votes
1answer
121 views

How to build a chained cert for Dovecot?

I have a Dovecot default certificate "dovecot.pem" which is for localhost. My email client uses "domain1" and "domain2" as email hosts. Herefore I have two more self-signed certificates "domain1.crt" ...
2
votes
1answer
806 views

Who is telling where cur,new and tmp are created using Postfixadmin with Maildir

I was trying to realized which configuration is telling where cur,tmp and new are created. Of course I've beein using virtual user and I receive and send mails into virtualuser/domain/user/Maildir/new ...