Server :: Postfix SASL Authentication (UNIX Accounts)?
Nov 12, 2010
I'm using postfix with unix accounts for a while now and I just realized today that SASL authentication, instead of working only with the USERNAME, it also works if the username is followed by ANYDOMAIN.COM
So, let's say I have the following UNIX users: tim, mike, john. If I set the Outgoing Username:[URL]..(where whatever.com can be any name you can think of) IT WORKS, even though it shouldn't, it should only work with tim, mike and john without any domain name. Does anyone know what might cause this and what's the workaround to this problem?
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Jun 19, 2011
Am unable to send mail from Outlook to my Postfix SMTP server.
Am getting the following in the /var/log/maillog.
Code:
Think I've pretty much followed the instructions correctly here.
[url]
Also, I looked for the PID of the smtpd and did a strace on it.
Code:
Code:
However, when I looked at the permission of this file, it should be accessible by everyone.
Code:
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Oct 14, 2010
I am running the following on CentOS 5.5 (Final)
dovecot 1.0.7
saslauthd 2.1.22
When I send an email via TLS I see the following log entries.
Code:
Oct 14 11:53:06 ns2 postfix/smtpd[11372]: connect from unknown[172.16.1.159]
Oct 14 11:53:06 ns2 postfix/smtpd[11372]: setting up TLS connection from unknown[172.16.1.159]
[Code]....
What I'm really curious about is there is an intial TLS connection with a 256 bit cipher, but then.. The last entry states "sasl_method=PLAIN" - so surely this is not encrypted? Or am I misunderstanding how it works?
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Mar 15, 2011
I am re setting up a server of mine running red hat enterprise Linux server 6 and I had all of this working befor but for some reason I had troubles getting sasl to work and now when I login my smtp server I get an error stating that my username or password is incorrect though I am sure I am entering both correctly. Would anyone know what could be happening? I have been spending days on the web looking for the solution and only went from sasl not working when started as a service to this. For some reason I can't use Pam with saslauthd and had to use shadow instead of which from what I hear I get to use better methods of secure authentication with smtp
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Aug 2, 2010
I have been faithfully following the postfix/sasl/etc install docs from [URL] and seem to have hit a minor snag with SASL authentication for SMTP. KMail cryptically leaves me with a generic auth fail notice and tailing the mail logs gives me
[Code]...
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May 10, 2011
Pam-mysql can not connect to the database and below are my configurations.
saslfinger -s Output:
root@mailbackup:/# saslfinger -s
saslfinger - postfix Cyrus sasl configuration Tue May 10 10:12:10 EAT 2011
version: 1.0.2
mode: server-side SMTP AUTH
-- basics --
Postfix: 2.7.2
System: Slackware 13.1.0
-- smtpd is linked to --libsasl2.so.2 => /usr/local/lib/libsasl2.so.2 (0x00007f74ebfb7000)
-- active SMTP AUTH and TLS parameters for smtpd --
-- listing of /usr/lib64/sasl2 --
-- listing of /usr/local/lib/sasl2 --
-- content of /usr/lib64/sasl2/smtpd.conf --
-- content of /usr/local/lib/sasl2/smtpd.conf --
-- active services in /etc/postfix/master.cf --
-- mechanisms on localhost --
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Aug 17, 2010
i used yum install postfix, but i don't know it's support sasl? how to check it?
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Mar 19, 2011
I checked relay system using IP address it working gr8, but I want to implement user based authorization in relay server. but no idea where to make changes in sendmail.mc.. and my outlook asking for password again and again..whats role of openssl in user based authentication ?
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Mar 3, 2010
I have Postfix up and working perfect. It receives and sends email fine with no TLS and SASL but I installed Dovecot and then generated some self signed certificates using 'openssl' and for some reason I can't send from my IMAP server. I get this in my logs:
Code:
Mar 3 11:20:45 mail dovecot: imap-login: Login: user=<carlos>, method=PLAIN, rip=10.1.1.204, lip=192.168.0.200, TLS
Mar 3 11:21:20 mail postfix/smtpd[1386]: connect from tuna.mydomain.tld[10.1.1.204]
[Code].....
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May 13, 2010
I have an issue where postfix is setup to use dovecot auth and as far as I know it works, if i login using telnet to the mail server i can authorize myself y providing the base64 encoded user & password. so if i can login, why cant my email clients. have tried thunderbird and evolution. this is the mail.log relavant entries for sucessful login via telnet
[Code]...
Login by pop or imap works flawlessly that what i dont get. From what i see it SHOULD be working. It it changes things, im using postfixadmin, postfix, dovecot. passwords and info stored in mysql tables. passwords are md5 encrypted. I thought that may be the issue, but that dosnt make sence.
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Feb 19, 2009
I'm trying to expand my Courier+MySQL+Postfix+PostfixAdmin server to use SASL logins on Postfix so I can relay on my server. After following several guides I still can't get it to work: Postfix logs show the user transcript and end with "Authentication failure" but it does not tell me what told it that the login failed. The messages log show this:
Feb 19 22:48:55 sportlaan-server saslauthd[7254]: do_auth : auth failure: [user=berend] [service=smtp] [realm=mydomain.com] [mech=pam] [reason=PAM auth error] Which I don't get because I don't think it should be using PAM... I think...
The setup is similar to this one: http://www.howtoforge.org/virtual_users_postfix_courier_mailscanner_clamav_centos_p6
My SASL config has this in it:
/usr/lib/sasl2/smtpd.conf
pwcheck_method: saslauthd
log_level: 3
authdaemond_path: /var/spool/authdaemon/socket
mech_list: plain login
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Mar 21, 2011
distro = debian 5
when i tried to send to other domain, i will get "Relay access denied"
below are my configs
main.cf
Code:
# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
[Code].....
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Dec 29, 2009
I was reading over and checking the How to section on the Wiki for Postfix TLS / SASL. I followed it completely and everything seems to be working fine however I am confused about the following section:
smtpd_tls_security_level = may
smtpd_tls_key_file = /etc/pki/tls/private/mail.example.com.key
smtpd_tls_cert_file = /etc/pki/tls/certs/mail.example.com.cert[code].....
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Nov 7, 2010
Its 2 weeks i'm trying to configure freeradius2 on centos5 64bit after installed it from yum.all seems working, but i cant authenticate unix users.after digging in many sites its simply cant find user name and password ( ++[unix] returns notfound )Also how can i paste here all the radiusd -X log lines? i can't find any
radius.log file.
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Apr 28, 2010
I installed webmin + postfix + dovecot + sasl2-bin to get a webserver running. I have fixed all the problems, but there is still one. I am totally new to sasl, so I am sorry if I made a stupid mistake.
[Code]....
Thunderbird gives the following error when trying to send mail: Sending of message failed. The message could not be sent because the connection to the SMTP server mail.virovene.org was lost in the middle of the transaction. Try again later or contact your network administrator. mail.err Apr 28 23:33:18 virovene postfix/smtpd[6264]: fatal: no SASL authentication mechanisms
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Oct 15, 2010
I'm trying to set up mutt for my hushmail account. I've compiled my own mutt package:
Code:
System: Linux 2.6.35.7 (x86_64)
ncurses: ncurses 5.7.20081102 (compiled with 5.7)
[code]....
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Mar 10, 2010
I'm getting relay access denied to an email outside of my domain. It seems the passwords are authenticating because I'm not getting invalid password prompts.
### BEGIN POSTFIX CONF ###
# postconf -n
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
config_directory = /etc/postfix
mailbox_size_limit = 0
[Code].....
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Jun 15, 2011
I'm trying tom compile and install postfix with SASL support, but i have a error messeage when install:
#make makefiles CCARGS="-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/local/sasl2/include/sasl" AUXLIBS="-L/usr/local/sasl2/lib -lsasl2"
...
#make install
[code]....
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Mar 13, 2011
I for some reason can't get Cyrus-sasl to work completely. I have to manually start it via saslauthd -a show if I let it start up itself or do a service saslauthd start or restart testsaslauthd will fail. I need help getting this fixed. I tried setting /etc/sysconfig/saslauthd to shadow instead of Pam but still no luck. Also when I try to login my postfix server I get an error stating that my username or password is incorrect even though it is right and I can receive mail from dovecot.
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Aug 23, 2010
I just went through a painful upgrade from 8.04 to 10 LTS. I've made a lot of progress but am still having email problems. Dovecot seems to not be able to run, the log is continually reporting:
Aug 22 23:47:34 amd64 postfix/smtpd[22298]: fatal: no SASL authentication mechanisms
Here's this section of dovecot.conf:
auth default {
mechanisms = plain login
passdb pam {
}
[Code]....
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Jan 3, 2010
Slackware 13 64 - full installation
Postfix from slackbuilds dot org
Dovecot from same
has anyone recompiled Postfix using the Slackbuild script, modifying the script to include support for Cyrus-SASL, OpenLDAP, and MySQL in the build, while retaining Dovecot SASL and TLS? If so I would appreciate it if they could post the CCARGS and AUXLIBS commands. I am having some difficulty getting this working.
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Mar 14, 2011
On Ubuntu server 10.10, with a relay smtp server with authentication via postfix; I keep getting 535: Incorrect authentication data. I'm sure my username and password is correct. Heres how I set up postfix: I created a file called smarthosts.conf in my /etc/postfix/ directory that contains the following:
[Code].....
my server uses plain text authentication on port 25. I would like to use security like SSL, but this particular server is unsecured.
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Nov 27, 2010
I'm running a server with Ubuntu 10.04 and I have installed postfix and courier. The server can recieve mail and I can fetch them using POP, but when I try to send mail it doesn't work. Postfix itself can send email if i telnet from localhost and I am using my ISP as a relay because they block port 25. I'm using outlook 2007 on my client computer and it just says that the server rejects the login attempt and tells me to check my username and password. Postfix listens on port 12 as well because the client connection also has outgoing on port 25 blocked. I have tried to use telnet to connect to the server, and I can connect. This is what I get:
[Code]....
Now what? I've tried searching for the answer but all I can come up with is AUTH PLAIN or AUTH LOGIN, but I don't know what to type after that.
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Feb 26, 2010
I followed this How To (https://help.ubuntu.com/community/Postfix) in order to add smtp authentication to my Postfix installation used as spam filter for my exhange server, and it'seem all ok; the only thing that I don't understand is where I list all the users (with passwords) that I authorize to send mail through my server...
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Mar 3, 2010
I want to use AD sys accounts to logon to linux servers. What is the best and most secure way to do this. This because we want to ensure it is tracable when a server administrator makes changes to a linux server. Now we use root to make changes to the servers.
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May 1, 2011
I setup Postfix on my Ubuntu 10.04 LTS server but I am getting an error saying: Code: Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 530 530 SMTP authentication is required. (state 14).
[Code]....
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Mar 17, 2010
Is there a way to do this? Some users can not send internet messages. Do you have some configuration tips?
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Jul 13, 2010
I'm using mbox storing for dovecot 1.0.15 messages. The mailbox is in a different partition (/var/mail).The MTA is postfix 2.5.5. SO is Debian 5. How can I find email accounts that haven't be accessed within a 30 days period in order to delete them?
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Apr 8, 2010
I recently Re-did my Postfix configuration using [URL] The thing that that guide did not tell me was how to get email to forward to other accounts or if I can point multiple accounts to the same place like here:
[Code]...
finally I tried putting a .forward record in /home/vmail/domain.com/username directory which didn't work either.
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Mar 14, 2010
how to list all postfix user accounts in command line?
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