Fedora Servers :: Dovecot Stopped To Authenticate / Why Is So?

Jul 13, 2009

This happened during the bump from 1.1.4 to 1.2.0 (in F11), but now nobody can login into the mail server.

The strace of dovecot-auth says that it sends messages over an AF_NETLINK socket before failing. Why in the world would it do that?

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Fedora Servers :: Dovecot Stopped Getting Localhost Mail?

Oct 23, 2010

Last time I rebooted, sendmail & dovecot started from init and everything worked. I needed to reboot this weekend [new videocard] & yum had given me a new kernel etc.Now.2.6.34.7-56.fc13.i686 running Thunderbird - with 2 accounts chuck@otherserver.com and chuck@localhost.
The "otherserver" account works fine. Localhost won't pull in the mail.

/var/log/maillog says
dovecot: pop3-login: Login: user=<chuck>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured
dovecot: POP3(chuck): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0

[code]....

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Fedora :: Can't Authenticate Using Via POP3 For Dovecot / Fix It?

Jul 4, 2010

I believe I have everything but this setup, as when I use my Outlook's Test Account Setting, it's able to do the following:
1) Send a test e-mail
2) Connect to POP3
3) See the actual test e-mail at /var/spool/mail/<username>

However, the Test Account Setting wasn't able to authenticate to POP3. I then do the following:
1) Start up Command Prompt.
2) Execute "telnet <server IP> 110". It gives me "+OK Dovecot ready".
3) Type "user <username>"
4) Type "pass <password>". It gives me "-ERR Authentication failed".

Then I searched around and found this. However, I'm not sure if I am able to make any sense out of it.

My CentOS 5.5 is setup with the following standard files:
/etc/passwd (password field contains the character "x")
/etc/shadow (examining this reveals it's using MD5 has as the password field begins with $1$)

So how should I set my /etc/dovecot.conf? I think it's this file I need to setup to enable POP3 authentication?

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Fedora Servers :: Unable To Authenticate Through AFP From My MAC / Sort It?

Jun 15, 2009

I installed netatalk for Linux in Fedora 10. I managed to get the service starting correctly at every boot and from Linux side everything looks good. I even manged to tweak avahi-daemon to advertise my server on the network so would show in Finder sidebar (with a snazy tux icon). But when I try to connect to the server it asks me for username and password (as it should), but my password doesn't work. I changed my password, I even gave it a simple one to rule out possibility of "fat-finger"-ing. No success.
I tried many options in my afpd.conf file. Here is the latest code...

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Server :: Sendmail Stopped Authenticate Users / What To Do?

Jul 7, 2010

I don't know what happened but sendmail suddenly stopped authenticate my users who tries to send mail.
I use slackware 13.0 and sendmail for SMTP with ssl and plain authentication. Imapd works fine.
There is nothing in logs just that the client did not issue MAIL/EXPN/VRFY/ETRN during connection.

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Fedora Servers :: Samba Shares And Windows Vista - Cannot Authenticate

May 22, 2009

I had an older fedora box (I think it was Core 3) that acted as my file server in my small network (4). It worked fine when I had all XP clients connecting to it. Recently we decided to get all new computers. So now I have a fedora 10 box acting as my file/print server and all Vista Home premium computers as the clients. For the life of me I can not get samba to work. When I try to map the network drives on windows it will not let me authenticate. I install swat and try it that way, still no luck. Here is a copy of my smb.conf file:

Code:
# Samba config file created using SWAT
# from UNKNOWN
# Date: 2009/05/19 21:47:31

[global]
workgroup = AIVILANET
server string = Bighat Samba Server
interfaces = eth0
null passwords = Yes
smb passwd file = /etc/samba/smbpasswd
passdb backend = tdbsam
username map = /etc/samba/smbusers
syslog only = Yes
announce version = 5.0
name resolve order = hosts wins bcast
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192
printcap name = CUPS
wins support = Yes

[HP-LaserJet-1200]
comment = HP LaserJet 1200
path = /var/spool/samba
read only = No
printable = Yes
printer name = HP-LaserJet-1200
oplocks = No
share modes = No

[printers]
comment = All Printers
path = /var/spool/samba
printable = Yes
browseable = No

[home]
path = /home/savona/
username = savona
valid users = @Users
admin users = savona
write list = savona
force user = savona
force group = savona
read only = No
hosts allow = 10.0.0.2

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Fedora Servers :: Email Sender Address - Postfix / Dovecot Etc

May 21, 2009

I have an email server configured with postfix, dovecot, saslauthd and squirrelmail. It works great. In fact I'd even say it works too well: in squirrelmail, I can configure any sender address and my server will accept it. Message will be sent, wether the sender's address is [URL] or [URL]. Is there any way of limiting it in such way that only [URL] is accepted as sender's address?

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Fedora Servers :: Dovecot Errors On One User Authentication Failure

Apr 28, 2011

I am new to to dovecot and would like some help, so please be kind.I have one user that can send mail but not read it either by pop3 or imap.I am running Dovecot 2.0.11 on Fedora 14.

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Fedora Servers :: Configure Dovecot To Use Domain Name As Well As Part Of Username?

Jul 14, 2011

I installed Postfix, Roundcube (webmail) and Dovecot. Postfix stores the e-mails in maildirs located at /home/postfix/maildir/[user]@[domain]. Now I set the mail_location configuration option in Dovecot to: mail_location = maildir:/home/postfix/maildir/%u@%d The problem I run into is logging in with [user]@[domain]. Right now I can only login with [user] (without @[domain]), which makes the mail_location invalid (no e-mails can be found). How could I configure dovecot to use the domain name as well as part of the username?

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Fedora Servers :: Fedora 10 - Sendmail / Dovecot Relay

Jun 7, 2009

I am trying to setup sendmail on a fc10 box with dovecot running imap. I have everything configured and running on the server. For example, when I run "echo 'test' | mail -s test user@mydomain.com" or even to someuser@gmail.com, the mail goes through just fine. I can then reply from both of those accounts back to the server, no problem.

Relaying denied Cannot send mail. The SMTP server does not recognize any of the authentication methods supported by Entourage. Try changing the SMTP authentication options in Account settings or contact your network administrator.

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Fedora Servers :: Retrieving Mail From POP3 Boxes And Inserting Into Dovecot?

Apr 28, 2009

I have recently set up a mail server running dovecot and everything is fine. However, I now want to retrieve the contents of 2 pop mail boxes and insert them into the IMAP structure under dovecot. I need to check for spam and sort them according to sender and recipient.

What is my best software option for retrieving the mail?

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Ubuntu Servers :: LDAP Scripts Does Not Authenticate

Jan 3, 2011

Ldapscripts seems to be authenticating oddly but I am not sure why. Running 'ldapadd' works without issue:

<code>root@domainator:~# ldapadd -D cn=root,dc=example,dc=home -W
Enter LDAP Password:
<CTRL-D>
root@domainator:~#
</code>

However:
<code>
root@domainator:~# ldapaddgroup test
>> 01/03/11 - 22:16 : Command : /usr/sbin/ldapaddgroup test
ldap_bind: Invalid credentials (49)
ldap_bind: Invalid credentials (49)
Error adding group test to LDAP
Error adding group test to LDAP
</code>

Here's various parts of my /etc/ldapscripts/ldapscripts.conf:
<code>
SERVER="domainator"
BINDDN="cn=root,dc=example,dc=home"
BINDPWDFILE="/etc/ldapscripts/ldapscripts.passwd"
SUFFIX="dc=example,dc=home" # Global suffix
GSUFFIX="ou=Groups" # Groups ou (just under $SUFFIX)
USUFFIX="ou=Users" # Users ou (just under $SUFFIX)
MSUFFIX="ou=Computers" # Machines ou (just under $SUFFIX)
GIDSTART="10000" # Group ID
UIDSTART="10000" # User ID
MIDSTART="20000" # Machine ID
</code>
/etc/ldapscripts/ldapscripts.passwd permissions are root:root, 0400 a

And I have quadruple checked my password is correct. Is there a way to print out debugging from ldapscripts so I know what commands it is generating?

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Ubuntu Servers :: Trying To Authenticate Login Via LDAP

Aug 3, 2011

I have a query regarding login to roundcube via dovecot ldap. I have installed and set up the openldap on Ubuntu Server 11.04 with the help of the following article [URL]. I have also installed Postfix, Dovecot, Dovecot-ldap and roundcube as the mail client. Then, I went on to test if I can login through roundcube. I received "login failed". I'm sure the dovecot is running fine as well as Postfix and openLDAP server. All I can find from the log was "auth(default) LDAP: Can't connect to server: localhost".

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Fedora Servers :: CUPS - No Pages Found (Print Job Stopped)

Feb 26, 2011

I successfully installed cups on my fedorabox, I can manage it through the web interface on port 631. I added the hplip and installed a HP Deskjet printer. However, when I want to print a test page I get the following error: "no pages found". The print job is in a stopped state...

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Ubuntu Servers :: Win 7 Users Won't Be Able To Authenticate Unless Access Using IP Address

Sep 22, 2010

I've got a Samba server (CentOS)(I swear all my non-work boxes are Ubuntu) that has been working fine in our Active Directory environment for a long time, now that Windows 7 has been forced upon us, we've noticed that Win 7 users aren't able to authenticate to this server unless they access it using the IP address, e.g. \192.168.1.22. We've tried the different Windows 7 registry hacks and nothing makes a difference. We were advised to update Samba and we did to 3.3.8. However, this being a virtual machine, upgrading a clone of this machine did work, the configuration was identical, except the hostname

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Ubuntu Servers :: Folder Permission 777 - Cannot Authenticate Samba

Sep 28, 2010

I have samba allowing only known users, and on the ubuntu side, I have the folder permission 777. I have the same exact samba smb.conf file(locations of course matching new server), but I can't get it to authenticate with the new server(Old server is up and running too) and I'm lost. I thought I had it figured out when I did my last server, but I seem to be missing something on this one.

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Ubuntu Servers :: Dovecot Won't Show Mail

Jan 15, 2010

I've got the problem that Dovecot won't show me my mail!

I've set up my mail_location to maildir:~/Maildir/, and set up a namespace

Code:
namespace private {
separator = .
prefix = INBOX.
inbox = no

[Code]....

I am able to copy mails from another account to the account on my server. But I've got no clue of where dovecot stores them. Not in /var/mail I've checked..

This happened after I re-installed with a 9.10 Ubuntu Server disc.

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Ubuntu Servers :: Getting Sieve To Work With Dovecot On 10.04?

Sep 7, 2010

I'm having a problem getting sieve to work with dovecot on 10.04. Even weirder, when I try to compile the following script with sievec

Code:
require ["setflag","fileinto"];
if header :contains "X-DSPAM-Result" "Spam" {
setflag "\Seen";
fileinto "Junk";

[Code]...

edit: found the mistake, should've required imap4flags instead of setflag.

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Server :: Authenticate A Group Of Servers Against Windows Active Directory?

Feb 26, 2011

We have a small group of linux servers, currently with local logins. I want to eliminate the local logins and authenticate against the corporate AD. I've been looking at PAM - but winbind requires each machine to be added to the AD. This becomes a pain if we create new virtual or physical servers. Is it possible to have one server authenticate directly with AD, and the other servers authenticate against this server, which defers to the one server that is registered in AD?

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Ubuntu Servers :: Roundcube Cannot Connect To Imap - Dovecot

Jul 20, 2010

I have a problem connecting my roundcube to my imap server.

So, here it is : I have a working imap server (dovecot), installed following the guide provided here [url]. I can successfully telnet it, or ssl it (from localhost or from another ip of my local network). I can even use my thunderbird from another local computer. Well, for me it is working fine.

Then I installed roundcube (0.3.1-3) with synaptic, but I cannot connect to my localhost imap server.

I have set auth as plain ($rcmail_config['imap_auth_type'] = 'plain';)

Looking in my dovecot log, i see two different behaviour. One is when it seems correct, and roundcube log in imap server, but is disconnect immediately :

Second is when server is refusing the password :

I am working with a plain text passwd, with no encryption at all. Does roundcube encrypt the password I type before to sent it to imap ?

I cannot explain the first behaviour, when roundcube sometimes managed to connect but disconnect immediately. I manage ONE time to reach my mailboxes, but i don't know how, and this never happens again.

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Ubuntu Servers :: Postfix+dovecot Not Working As Expected?

Nov 9, 2010

I have tried to find solution in existing posts but could not specifically find any with my kind of issues and hence a new post on oft repeated subject !! -- and apologies for a long long post here.Here is where I am ..On a AMD 64bit machine - I have ubuntu 10.10 desktop installed. I want this development machine to support virtual mailboxes so that I can use them from multiple apps and create real life deployment situations.I installed postfix + dovecot following the tutorials available here and current state is - I can send mails using telnet sessions and I see that the mail files are getting created in /Maildir form as I have directed in the conf files. I have configured Thunderbird mail client as well.

Issue #1: Mail sending works from Thunderbird but it always responds back with 'No mail on server' message when I try to receive mails. SMTP is configured with STARTTLS and POP3 with None (i.e. plain text password)Issue #2: Also, while going thru conf, logs and during testing - I found a few things which defer in this installation for authentication. I have given the session transcripts here.Issue #3: That being major issue - I also want to configure my virtual users to use TB client to access their mails - I did not find any tutorials or pointers towards that in my search for past few days. If I send mails to a non-Unix virtual user - the mail gets stored into /home/vmail/<domain>/<user>/new directory.Here are the conf files.main.cf for postfix

Code:
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first

[code]....

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Ubuntu Servers :: Dovecot - Time Moved Backwards ?

Jan 17, 2011

Dovecot is setup to run on each startup but each time I restart my system, I find that it is not running(killed), when I check my logs it says time moved backwards for x seconds. Essentially, I'm having this problem, [url] what is the solution in ubuntu so that dovecot would not be killed on startup? currently I have to put /etc/init.d/dovecot restart into rc.local to restart it again...

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Ubuntu Servers :: Shared Mailbox / Folders At Dovecot

Feb 14, 2011

I have made some little mail server (postvix+dovecot+fetchmail) at ubuntu. The mail serve is using system accounts. Now I want to creat Shared mailbox. I have found some information, but I can't understand it correctly. Can U view the below information and correct me.

I have several accounts: Oleg (my account - /home/oleg/Maildir/); pankov (/home/pankov/Maildir); cv ( /home/cv/Maildir/). I want to share the mailbox of CV user:
I have add the follwoing information to dovecot.conf:

# You need to create also a private namespace:
namespace private {
separator = /
prefix =

[Code].....

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Ubuntu Servers :: Cannot Receive Mail On Dovecot / Postfix

Mar 10, 2011

I do not know why I could send email outside but not receive. I use relay to my ISP that port 25 is blocked by my ISP. What can I doing with configuration when it should be works to receive mail? Okay, I have sent a test e-mail between localhost and it works. I can send from mailserver to my gmail without problem. So why I cannot receive email from gmail?

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Ubuntu Servers :: Dovecot Binding To LDAP On Reboot?

Jun 9, 2011

Today I'm trying to configure Postfix+Dovecot to use Samba4's LDAP database for authorisation and mail delivery. As I can see from /var/log/mail.log, Dovecot tries to bind to LDAP right after reboot , but fails:

Code:

pdcadmin@PDC1:~$ cat /var/log/mail.log
Jun 9 13:06:46 PDC1 dovecot: auth(default): ldap_bind
Jun 9 13:06:46 PDC1 dovecot: auth(default): ldap_simple_bind

[code].....

Believing this to be a sign of succesfull bind, I couldn't understand the reason behind it. Why do I need to restart or reload dovecot service to make it work (though it fails on the next step with "dict_ldap_lookup: Search error 1: Operations error" and "451 4.3.0 ... Temporary lookup failure")?

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Ubuntu Servers :: Dovecot Service Stop Automatically?

Jul 1, 2011

i have two ubuntu server the first run on ubuntu 9.10 = ok the second run on 10.10 maverick a have the problem that dovecot service stop automatically

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Server :: Combine The Dovecot And Inbound Postfix Servers?

Jun 13, 2011

We are planning on rolling out a mail service that will backend a webmail/groupware interface using postfix and dovecot, and we are trying to nail down an architecture for the system. I was hoping I could get some opinions from you good people on the different models we have come up with, and any improvements. To preface this discussion, we use NFS as the backend storage for mail so that clusters of mail servers can be created.

One possible solution is to separate three services, inbound email, outbound email, and message retrieval onto separate servers. We currently run a mail system with 65K users in this manner and it works, but there is a lot of wasted cpu on the inbound and outbound mail servers. where the dovecot servers are doing most of the work.

Another solution would be to combine the dovecot and inbound postfix servers to run dovecot as the local transport agent for postfix with LMTP, giving us quota and sieve capability.

The last solution is to run all three services on the same machine, giving us a single server image that we can clone on demand when we need to add more performance.

The single server, all three services, solution seems to be the simplest to build and manage, but putting all your eggs in one basket like that concerns us. What if there is a sudden influx of mail from our filtering platform, and it slows down all the other processes? What if the NFS server becomes disconnected from the network and the load average on each server skyrockets killing the ability for outbound mail to flow (where a separate outbound mail server would continue running despite this issue)?

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Ubuntu Servers :: Dovecot/Postfix Cannot Receive Email Via Client?

Apr 12, 2011

I have a very basic install of dovecot and postfix on the latest version of Ubuntu server. This is an internal only email server with internal only DNS. I can send email via clients and check said emails via the command line when logged in as the appropriate user. I cannot for the life of me check said emails via SquirrelMail on the server nor using IMAP clients. I have no idea where to look and I can't find a basic tutorial for the life of me. Where should I start?

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Ubuntu Servers :: Getmail + Dovecot: Filter Spam With Spamassasin?

May 2, 2011

I have a system running at home that uses Getmail to retrieve mail from my ISP's pop server. Dovecot then offers that mail over IMAPs to my desktops running Thunderbird.

The reason I have resorted to using Getmail is because I don't have a static IP (from my ISP) for my server, and thus this server doesn't act as an MX.

I have implemented Spamassassin in my Getmail script as described here.

From further research, I understand that in order to fully utilize Spamassassin 's potential, I have to resort to training it with SA learn.

Currently I still receive spam messages, but 50% of spam is marked as ****SPAM****, and the other half is not marked at all.

My question is this:

1) How do I get getmail to move messages marked as spam by spamassasin to be moved to a JUNK folder within my mailbox automatically?

2) I thought of creating a folder where my users can move messages they deem to be spam, and set up a crontab script to invoke salearn regularly on this folder to get the bayes engine to learn from it. Is this the correct way of doing it?

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Ubuntu Servers :: Use Samba+winbind To Authenticate Desktop Against A Windows 2008 R2 Domain

Aug 3, 2011

Intent is to use samba+winbind to authenticate Ubuntu desktop against a Windows 2008 R2 domain (seems like I was able to get it working temporarily but it stopped working after some time). Quick overview of the issue: winbind is failing to lookup group ID's for a domain user causing the domain user to receive group errors on login and an inability to use domain groups in other configuration (sudoers, etc)

- Very basic install, boot to Ubuntu Desktop 10.04 LTS 64bit install, basic install options, perform software updates

- Following an Ubuntu AD HowTo [URL]

- Install kerberos, samba, winbind packages

- Make changes to krb5.conf, smb.conf, files in pam.d/ (to make the home directory and restrict login based on group membership, which works even in the half-working state but requires SID instead of text name)

After a reboot I can login as a domain account but I get the following error(s):

groups: cannot find name for group ID #####

##### is usually a number that ranges from 10000 to 10020, based on the smb.conf line regarding idmap I will get multiple group errors (one for each group that the user belongs to that winbind can't lookup for whatever reason, some groups can be resolved - see below) If I log-out and then log-in as a local user I can run the following command: id username The output returns something similar to the following:

uid=10002(username) gid=10003(domain users) groups=10003(domain users),10033,10032,10031,10030,10029,10028,10027,1 0026,10025,10024,10023,10022,10021(some group),10020,10019,10018(some other group),10017,10016,10015,10014,10013,10012,10011(s ome other other group),10010,10009,10008,10007

On a working system (Ubuntu 10.10 and when 10.04 decides to work) each group is followed by parenthesis' and the name of the group, this result clearly shows that some groups can be looked up but for some reason other groups are failing An output of /var/log/samba/log.winbind produces the following entries (that are logged when you run the id command)

[2011/08/03 19:04:39, 1] winbindd/winbindd_ads.c:1137(lookup_groupmem)
lsa_lookupsids call failed with NT_STATUS_PIPE_BROKEN - retrying...
[2011/08/03 19:04:39, 1] winbindd/winbindd_ads.c:1137(lookup_groupmem)
lsa_lookupsids call failed with NT_STATUS_PIPE_BROKEN - retrying...

The above repeats for what looks to be each group that fails (based on count of entries)If I use wbinfo I can resolve text group name to SID and SID to GID

wbinfo -n groupname (returns proper SID)
wbinfo -s SID (returns proper text group name)
wbinfo -Y SID (returns proper linux mapped group ID)

Following that process for a group that my user belongs to that is not resolving (via the id username command) will return the group ID (GID) properly (even though id username fails to lookup info for that same GID) Version Information:

uname -a
Linux hostname 2.6.32-33-generic #71-Ubuntu SMP Wed Jul 20 17:27:30 UTC 2011 x86_64 GNU/Linux
lsb_release -a
No LSB modules are available.

[code]....

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