Questions tagged [courier-imap]

IMAP daemon from courier-mta

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Courier fails to save copy in sent folders on emails with large attachments

I use postfix and courier on my email server on debian 11. Whenever I send an email with attachments larger than a few MB (I use a slow cellphone-connection), it fails on saving the copy in the Sent ...
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postfix smtp slow to send from clients (and sometimes does not authenticate), works fine with 'squirrelmail'?

I inherited a long time working postfix with courier imap box that runs run of the mill smtp. It seems to use fail2ban for firewall protection of some sort (never used fail2ban) and according to /var/...
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Courier not listening on IPv4 ports

I am having an issue with postfix/courier after a software update in which courier is no longer listening on the IPv4 ports. Here is the netstat output: ubuntu@ip-10-x-x-x:~$ sudo netstat -plnt sudo: ...
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2 votes
1 answer
1k views

Disabling SSLv2 in Courier IMAP

I'm attempting to disable SSLv2 support (amongst other things) in Courier on Linux. In /etc/courier/imapd-ssl I have: TLS_CIPHER_LIST="HIGH:!MEDIUM:!SSLv2:!LOW:!EXP:!aNULL:!ADH:@STRENGTH:!3DES" ...
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3 answers
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Setting up aliases with Postfix and Courier-IMAP

I have set up a Postfix mail server which uses Courier in order to provide an SMTP service. On my server there is a user called joe. I used alias maps to make mail to test@example.com redirect to joe ...
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651 views

NO Invalid mailbox name IMAP

I want to create a folder named "spam" for my local mail server. But it throws this error After running, telnet localhost imap and logging in list "" * * LIST (\HasNoChildren) "." "INBOX.mu-prop" ...
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4k views

Courier IMAPd: "NO Error in IMAP command received by server"

So I'm setting up a mailserver here - Courier & Postfix on Debian 7.8, authenticating against MySQL. Got it mostly set up - I can send mail, and the address is also receiving mail properly, with ...
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218 views

How to use old md5 password hashes on courier/postfix

I've recently installed courier/postfix with virtual users and domains and i want to move mailboxes from an old server. The problem is that the old server used to use md5 password hashes in the ...
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Courier imap ssl doesn't start at reboot

I recently upgraded from Ubuntu 12.06 to 16.06. I have an otherwise working Courier IMAP setup with a non-SSL and SSL config. When I reboot, the non-SSL version starts, and the SSL version does not. ...
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Ubuntu Postfix Courier Imap custom filter to custom folder based on sender address

I am trying to find a way to have incoming mails to a specific folder based on sender address. My setup is on Ubuntu Server 14.04, Postfix mail_version = 2.11.0 Courier Imap with spamassasin, amavis, ...
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1k views

IMAP authentication issue with roundcube + postfix + mysql + ubuntu mailserver

This problem is driving me insane and I'm now stumped. Need some help please ;) I'm setting up a mail server on an Ubuntu 14 AWS EC2 instance using mysql backend, postfix MTA and roundcube webmail ...
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1 answer
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Courier redownloads mails when there's no disk space

Background: Customer reported redownloading mails. Mails are stored in /home dir with no space available that time i've checked it. (Yes, we got Nagios, but customer is aware of the situation:>) ...
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2 votes
0 answers
130 views

Courier mail server - forward to dynamic address?

I'm running a Debian server with Courier as MTA and would like to create a mail forwarding rule that does the following: extract the domain from the address of the sender example: noreply@example....
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2k views

IMAP authentication with Courier throws error

I've just set-up PostFix + Courier + Roundcube using the following site for my instrcutions: http://flurdy.com/docs/postfix/ I was attempting to log into my webmail and it failed. Checking the logs ...
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2 answers
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imapd: 'username': No such file or directory

I'm using Apache, Postfix, Courier IMAP and roundcube on my CentOS 7 machine. I would like to create a new user account / new user email to be able to send emails from my domain outside my local ...
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169 views

How can courier-imap and courier-pop accept both username and username@domain?

I have courier-imap and courier-pop installed on a server, and they authenticate with username and password. The user database is LDAP, although, as far as I can see, courier doesn't know that; ...
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1 vote
1 answer
751 views

Can existing email accounts be extracted from Zimbra?

I have become dependent on Zimbra, and yet I have no need for a heavy GUI administrative interface. I'd rather keep a low-resource server that runs only the underlying services Zimbra uses, such as ...
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2 votes
1 answer
2k views

Cannot disable SSL in courier-imap

I cannot disable SSLv2\v3 in courier-imap. In imapd-ssl config I have following: TLS_CIPHER_LIST="ALL:!SSLv2:!SSLv3:!ADH:!NULL:!EXPORT:!DES:!LOW:@STRENGTH" According, to openssl - SSL is disabled ...
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1 answer
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Postfix [Courier, Maildir] Disable Quota

I set up Postfix under Debian Wheezy with MySQL and virtual users using this tutorial. Thunderbird is recently giving me alerts "You exceeded your mail quota" and saving/moving emails is ...
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6 votes
2 answers
1k views

How switching off SSLv3 in Courier-IMAP server affects old Mail User Agents?

I would like to mitigate POODLE vuln. in my courier-imap server. I know how to do it. I'm really concerned on how it will affect MUA's, especially the older ones. There are still users using Outlook ...
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1 vote
1 answer
729 views

Courier-IMAP pop3d auth over mysql

I've got a task of migrating one mail server from one box to another and so far I have configured Postfix and it's working. But, Courier pop3d server fails without exception. So, I have Courier pop3d ...
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1 vote
1 answer
740 views

Courier IMAP, no response

I've got a Postfix with Courier IMAP mail server mostly set up. IMAP authentication works as expected on port 143 (when SSL is disabled), but whenever SSL is enabled or port 993 is used, nothing ...
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1 answer
435 views

Untrusted SSL certificates on CentOS VPS

I'm currently in the process of becoming PCI compliant and I have 6 warnings remaining. The one I'm particularly struggling with is "SSL Certificate Cannot Be Trusted IMAP (143/TCP)". I'm using ...
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2 votes
0 answers
998 views

famd/gamin timeout issue with courier-imap

I'm running a mail server for about 200 users with courier-imap on Debian 7. This server is running a linux kernel 2.6.38 inside a Xen guest having 2 cpu cores and 2 GB RAM. The server accept ...
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1 vote
1 answer
220 views

What does Courier do with undeliverable messages?

On Wednesday we had an unrelated email issue with our host, and they made some changes which included removing our domain, foo.com, from /etc/local_domains. This had some far-reaching (and difficult ...
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  • 288
1 vote
1 answer
754 views

Courier IMAP 4.6 can't allocate memory when opening INBOX

I've got courier-imap 4.6.0-2.1ubuntu1 running on Ubuntu 10.04.4 LTS on a virtual/cloud LAMP machine with 1GB RAM. There is a particular (unmaintained) email address which has 100,000+ emails, all in ...
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  • 161
2 votes
2 answers
269 views

Move Maildir safely on running server

I want to move some Mailbox directories to a new disk while postfix and courier imap daemons are still running. The question is ¿what happens if a new mail is recieved into the Mailbox while moving ...
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2 answers
140 views

Multiple domain server mail

I have the following configuration : domain1.com -> 1.1.1.1 domain2.com -> 1.1.1.1 domain3.com -> 1.1.1.1 They all point to the same machine and the same VHost / machine. This machine has a courier-...
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1 answer
524 views

Courier authentication slow

I have setup courier with imapd-ssl on ubuntu. Everything works fine: ssl certificates validate (on ubuntu/thunderbird and mac/mail) and login works, too. The only problem is that it ALWAYS takes ...
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1 answer
2k views

Unable to sign in to mail account (Courier) - Username or password incorrect?

I have a very basic Courier installation set up with three virtual accounts: admin@, info@, and jay@ourdomain.com. Admin@ is the default account which receives a ton of spam. Info@ is used for our ...
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0 votes
1 answer
571 views

Authentication issue with mail server

I followed the instructions at https://help.ubuntu.com/community/PostfixCompleteVirtualMailSystemHowto to setup a smtp and imap server on my local network. But when i try to login with thunderbird (...
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1 vote
0 answers
123 views

Courier-imap (authlib) - supported hashes?

Which hashes are supported by courier-imap (or maybe its courier-authlib job?)? Ive tried passwords hashed with {SHA}, {SSHA} and {SSHA256}. Only first seems to work, but i need to use last one (...
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  • 157
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1 answer
2k views

Virtual mailboxes with Postfixadmin + Courier IMAP - Expected mail directories not being generated

I have set-up a mail server with Postfix, and I am currently in the process of creating virtual mailboxes with the help of Postfixadmin. I am using Courier to handle IMAP authentications, and I am ...
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0 votes
1 answer
3k views

Courier imap-ssl and multiple domains

I've successfully setup courier+postfix to work with multiple email domains on the same server. At the moment I have these lines in /etc/courier/imap-ssl: TLS_CERTFILE=/etc/courier/imapd.pem ...
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  • 115
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1 answer
1k views

connecting exim4 to openldap on remote server

I have a server running qmail with about 300 user accounts on a ubuntu version 8 server. I would like to migrate qmail to a new mta such as exim4.x. I have a VM setup using redhat enterprise version 6 ...
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2 answers
2k views

Courier IMAP always disconnects since update

Since one of our customers updated their server courier does not handle IMAP connections properly any more. POP3 works without any problems. When I try to test IMAP with telnet then it is always like ...
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3 votes
2 answers
2k views

Courier IMAP: Readonly mailboxes?

is it possible to make specific mailboxes (Maildir) read-only? so users can only read, forward and search mails, but don't delete them? thanks in advance
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2 votes
1 answer
140 views

Simple imap client

I'm writing a very simple IMAP client in Python using imaplib. For the front-end, I'm wondering whether it should always connect to the imap store as the courier(imap) service user, or should it ...
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1 vote
1 answer
861 views

Rebuilding courier message files

I run a mail server on which I have courier imap and pop3 running. Recently I moved some local messages from my machine (previously downloaded with pop3) onto the server so I could use imap. I used ...
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0 votes
1 answer
674 views

Courier Authentication Library with MySQL Authentication - Unable to configure

I'm building a replica of a production server for migrating it to a Virtual environmnet. I do not want to just copy it as it is a 32 bit CentOS 5, and I upgraded it to CentOS 6 64bit. I managed to ...
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4 votes
1 answer
156 views

How to have multiple imap servers installed (only one working) in CentOS

I have courier-imap currently installed on my CentOS server. I would like to install another imap server (such as dovecot) without uninstalling courier-imap, and then be able to switch between them, ...
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  • 701
1 vote
1 answer
3k views

courier-authdaemon not attempting to authenticate imap users

We have had a little used mail server running fine for more than a year but earlier today it started to fail to authenticate users occasionally and now it has stopped even trying to authenticate. The ...
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  • 1,014
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1 answer
4k views

Courier-imap login problem after upgrading / enabling verbose logging

I've updated my mail server last night, from Debian etch to lenny. So far I've encountered a problem with my postfix installation, mainly that I managed to broke the IMAP access somehow. When trying ...
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0 votes
1 answer
307 views

QMail doesn't deliver HTML internal emails

I've been writing an application for the company I work for, and when sending a HTML formatted body to QMail it's sending out to external mailboxes fine but loses all formatting when sent internally. ...
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0 votes
1 answer
5k views

Migrating from Courier-IMAP to Dovecot. Roundcube dom't get folders

Mission: I'm trying to migrate from courier-imap to dovecot IMAP/POP3 server and i'm having problems with folder listing. In my case i need to configure in the way so all imap/pop3 clients will work ...
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0 votes
1 answer
1k views

Error using imapsync to migrate from Courier-IMAP to MS Exchange 2010

I got error when using imapsync: + NO msg #8902 [6LRM0SNoLvi5ehuhf0ysRA:2796] in INBOX + Copying msg #8902:2796 to folder INBOX flags from : [][] Couldn't append msg #8902 (Subject:[Kaka]) to folder ...
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