Questions tagged [courier]

An SMTP/POP/IMAP email server

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Not sure, if my Courier server is an open relay

Nessus finds my mailserver to be an open relay: Here is a trace of the traffic that demonstrates the issue : S : 220 my.mailserver.at ESMTP C : HELO example.edu S : 250 my.mailserver.at Ok. C ...
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Installation of Courier 1.0.6-1build2 fails on Ubuntu 20.04

The installation of Courier 1.0.6-1build2 on Ubuntu 20.04 fails, although the courier-package is the one provided by the OS. The problem occurs in a post-installation script which leaves the package ...
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Why does authtest fisrtneme.lastneme@mydomain.tld password do not work on MySQL based email server on Ubuntu 20.04

I used this manual for dummies for configure email sever for Ubuntu 20.04: https://www.howtoforge.com/virtual-users-and-domains-with-postfix-courier-mysql-and-squirrelmail-ubuntu-14.04-lts And for ...
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Why does MySQL reject my postfix virtual domain query as "an error in your SQL syntax"?

I have problem with MySQL Courier + Postfix Email Server Here is error log: warning: mysql:/etc/postfix/mysql-virtual_domains.cf: query failed: You have an error in your SQL syntax; check the manual ...
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Mail server set up for inbound mail on a subdomain to trigger php script

I'm trying to set my company server up to be able to receive emails to a certain account on a subdomain of our main domain i.e.: linuxuser@subdomain.domain.com Those incoming mailers should trigger a ...
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SSL error: No path found from the leaf certificate to any root. Maybe an intermediate certificate is missing

I've setup a personal mail server using postfix, postfix-saslauth, courier (mysqlauthd, imap, pop) plus some well practices like SPF, DKIM and DMARC. This set up has been working fine for the last 10 ...
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I try to get mail server to work on PostgreSQL

I try to get mail server to work on PostgreSQL but I get a error below: Apr 16 20:48:57 alm authdaemond: PGSQL_CONNECTION could not be established Apr 16 20:48:57 alm authdaemond: FATAL: database "...
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SMTP error '554 5.7.1 Relay access denied' with using postfix

I have been trying to setup a mail server on my ubuntu vServer for the last couple of days. I use postfix with mySQL and Courier. For webmail, I use roundcube. I can receive emails to my address, but ...
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Courier does not show IMAP Maildir folders

I am in the process of moving a courier IMAP server from one machine to another. Maildirs have been set up, all the messages have been copied successfully. There are a few IMAP folders that show up in ...
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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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How do I get Courier Maildrop to log data?

Background I'm running Ubuntu 16.04 LTS on a virtual machine. It is the mail server for a small medical clinic. We are trying to move mail filtering from the client-side to the server-side, and I am ...
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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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SpamAssassin scores are oddly low + different from manual analysis, causing nearly all spam to go through

I'm having issues with SpamAssassin; it's assigning emails scores that are way lower than it should. In addition, the scores it's assigning as emails come in are different from the results of running ...
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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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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-authlib: wrong username enters search query

I am trying to setup smtp authentication using courier, mysql on postfix. My passwords in my db are encrypted. When I attempt to connect, I get an auth failure r2d2 ~ # telnet mail.server.com 25 ...
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Dovecot, Courier, Postfix Differences [closed]

[This question might be against SO guidelines - too vague - too subjective. I have however failed to find an answer] Like this: Dovecot vs Courier vs Cyrus What is the difference between Postfix, ...
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NO [ALERT] Unexpected response from remote authentication server

is what I see when I run testsaslauthd inside an strace socket(PF_LOCAL, SOCK_STREAM, 0) = 3 connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/saslauthd/mux"}, 110) = 0 writev(3, [{"\0\34a....
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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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Postfix fail sending to any external domain

I have a problem :( When we try to send a mail to external demain by SMTP and Postfix + Courier+ Webmin, In the logs i got an error : Sep 18 10:57:34 MyDomain postfix/error[26300]: 275FF1EEC9B: to=&...
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fail2ban couriertcpd: LOGIN FAILED not banning

My fail2ban is not banning as I expect. An example of my log entries are :- Jul 26 07:11:29 mail couriertcpd: LOGIN FAILED, user=sally, ip=[::ffff:54.191.110.169] Jul 26 07:13:22 mail couriertcpd: ...
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Use LDAP and Local auth as a backup on mail server

We are currently researching the best way to go about switching our mail server (dovecot/postfix/debian 7) from local authentication to ldap (AD) authentication. We would like to have local auth as ...
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395 views

rsyslog Email On SSH/SFTP Login Fails

I have tried the following on my Nginx server, but do not get any emails upon SSH (or SFTP) login. I put this code in /etc/rsyslog.d/notify.conf and have ensured this file is being called by /etc/...
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2k views

Fix logjam vulnerability in courier

The site weakdh.org explains how to fix postfix against the weak Diffie-Hellman attack called "logjam". But don't I have to fix courier too? Or do I have to migrate to dovecot to be logjam-safe?
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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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How can I detect mail servername used from my clients to my server?

I have a web and mail server with Ubuntu 10.04, Apache 2, courier, postfix, Ispconfig 3 and multiple sites hosted. The clients use mail from Outlook with a config like this: @domain1.com use pop and ...
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170 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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Scraping log to identify emails sent to another MTA

I have a Courier MTA that seems to be sending spam. I want to scrape courier's mail.log to identify, for each mail that was sent to another MTA: The from address Where Courier got the email from ...
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2 answers
4k views

Can't connect with telnet from external ip

I have a postfix server running on a kimsufi VPS, i installed roundcube on it, and everything is ok. The problem is, when i try to connect from another server, i have a timeout : telnet whys.fr 25 ...
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courier-imap disabled IDLE still working

Due to short check interval of email clients and many imapd processes, i removed IDLE from IMAP_CAPABILITY in /etc/courier/imapd config IMAP_CAPABILITY="IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=...
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Speed up queue processing in courier

I'm using the Courier mail server 0.68.2 on Debian Linux. I recently had a typo in my .mailfilter file, which caused the incoming messages to stay in the queue and not getting delivered into my ...
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postfix quota postmaster daily mail

I've got an server with Postfix/Courier and Quota. Now I receive a daily update from quota. 2 questions: Where do I disable this daily update as it's always a blank email: DAILY QUOTA REPORT: ----...
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1 answer
3k views

imapd-ssl: admin: No such file or directory

I am trying to set up my VPS so I can use Thunderbird IMAP to manage my mails. First, I installed postfix and followed this guide to create an SSL certificate. Then I installed sasl2-bin and courier-...
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how do I add an account into the built-in courier administrator group? [closed]

In the documentation it says that there is a built in administrators group, but how do i add an account to that administrator group http://www.courier-mta.org/authlib/README_authlib.html The access ...
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Courier can not access mysql server while mysql-client can

I've setup a mail server on an Ubuntu 14.04 server. I've installed Courier as the IMAP server and I've configured it so it can connect to MySQL and use its data as the user list and stuff. I've ...
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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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Dovecot: move all e-mail from a sub-mailbox to main INBOX

Introduction: I am in the last stage of migrating a very big mail account from a remote courier mail server to a new dovecot server. For this I used dsync to move the INBOX from the old server. ...
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IMAP archive on NAS storage forces a Error: Input/output error for maildir_lock [closed]

My server is running out of hard disk space. The main reason is a huge amount of archived IMAP mails. Therefore my idea was to put all archived mails on my NAS and mount that folder on my server. ...
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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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138 views

Configuring dynamic e-mail aliases such as "user+keyword"

My Ubuntu server is using Exim4/Courier for emails and I'd like to know if it's possible to create dynamic email aliases for receiving emails like this: client+client1name@domain.com client+...
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Why is received mail stored in ~/Maildir and sent mail in ~/mail?

So I setup my mail server eons, and I'm doing maintenance on it right now and I'd figure I'd fix a few things with it that's bugged me forever. Mainly, I'm trying to move all the mail storage into a ...
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Configuring courier-authlib on an RHEL6

I'm trying to connect Courier to MySQL on a RHEL6. I've installed the Courier using RPMs and not the repositories (which I think is the root of my problems). Anyway, here are the packages I've ...
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2 votes
2 answers
1k views

Imapsync doesn't sync unicode characters properly

I am using imapsync to migrate my e-mail account from a CPanel (courier) mailserver to a Debian/Dovecot one. The issue I am facing has to do with some folders that contain Unicode characters. For ...
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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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Postfix with virtual users won't send mail to domainname on server

A debian mailserver with postfix and courier is able to receive and send mail for domains listed in virtual_mailbox_domains without a problem. But if there is a mailadress used that is used during the ...
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Postfix-processing incoming email based on subject and saving the email details in db and flag/tag the email in "courierimapkeywords/:list"

can we processing incoming email based on subject and save those matching email details in db and flag/tag the email in courierimapkeywords/:list for the keyword to be used in IMAP client. We need ...
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-1 votes
3 answers
760 views

postfix, courier works locally not receiving external messages

I just did a fresh install of Postfix and courier on a ubuntu 12.04 machine the mail server appears to be working from the inside until you try to send an email from an external address (like gmail). ...
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2 votes
3 answers
24k views

RoundCube login to local IMAP server failing

I've been following this guide to set up a mail server on my server: http://flurdy.com/docs/postfix/edition5.html The only difference is that this tutorial uses a MySQL database and I've used ...
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Encrypting all incoming mail with public pgp key per user

What I'm trying to do is be able to take all incoming messages and encrypt them with that users public pgp key. I'm running postfix + courier etc. http://flurdy.com/docs/postfix/ I've read through ...
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Courier generic subaddressing

I have a Courier MTA that picks up the mail for all the virtual users. Now I would like to implement sub addressing. Unfortunately, the documentation didn't help me that much, because at the points ...
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