Hi all

I have a postfix mailserver running on centos-5. I am using Postfix, Dovecot, Mysql(virtual users), ClamAV(without Amavis), and Spamassassin.

I had postfix version 2.3.3-2.3.el5_2, and it was working very fine but one of my colleague in office updated the postfix version to 2.3.3-2.3.el5_6, while it was running.

After that updates it stopped working. Means the postfix service is running, and I can telnet my server locally and externally with port number 25, 110, 143, 993 very easily. And all the both main.cf and master.cf files remained unchanged after update(i think so).

Now the problem is I can login to any email account using squirrelmail, but while sending mail it shows error "Message not sent. Server replied:". Even I have 19 mails stuck in queue. No any kind of email is hitting on server.

Please guide me, what to do and how to do.
Need help.

Thanks and Regards
Manish Dhiman

Put back the backups from these files to be sure.
Did you restart postfix?

Kind regards

Yes I restored the main.cf and master.cf files but it didnt work. And I had restarted postfix and centos server many times. But no solution.

What is the error message?

Kind regards

I am able to login to any account but while sending mail via squirrelmail, it gives error that "ERROR:
Message not sent. Server replied:"

Even sometimes while sending mail through squirrelmail, it gives error that
"Message not sent. Server replied:

Connection refused
111 Can't open SMTP stream."

Sould I paste any log or config file here to get an idea, that what is wrong???

The mails which are stuck in a queue are giving an error that " Client host rejected: cannot find your reverse hostname, [xx.xxx.xxx.xxx] (in reply to RCPT TO command))"

Guys, please follow this link

http://www.answersthatwork.com/Downl...rror_Codes.pdf

and check out the error number "111-connection refused". I am getting the same. But dont know what is the solution for this.

Please help me. I m in a mess.

logs in /var/log/maillog are

Sep 2 07:22:22 mail dovecot: pop3-login: Login: user=<vikas.bhargav@kapsonsolut ions.org>, method=PLAIN, rip=::ffff:115.119.64.179, lip=::ffff:115.119.64.180
Sep 2 07:22:22 mail dovecot: POP3(vikas.bhargav@kapsonsolutions.org): Disconnec ted: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 2 07:22:22 mail dovecot: pop3-login: Login: user=<soni.kumar@kapsonsolution s.org>, method=PLAIN, rip=::ffff:115.119.64.179, lip=::ffff:115.119.64.180
Sep 2 07:22:22 mail dovecot: pop3-login: Login: user=<anil.sharma@kapsonsolutio ns.org>, method=PLAIN, rip=::ffff:115.119.64.179, lip=::ffff:115.119.64.180
Sep 2 07:22:22 mail dovecot: POP3(soni.kumar@kapsonsolutions.org): Disconnected : Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 2 07:22:22 mail dovecot: POP3(anil.sharma@kapsonsolutions.org): Disconnecte d: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 2 07:22:22 mail dovecot: pop3-login: Login: user=<ranjana.ghai@kapsonsoluti ons.org>, method=PLAIN, rip=::ffff:115.119.64.179, lip=::ffff:115.119.64.180
Sep 2 07:22:22 mail dovecot: POP3(ranjana.ghai@kapsonsolutions.org): Disconnect ed: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 2 07:22:23 mail dovecot: pop3-login: Login: user=<dharmender.sharma@kapsons olutions.org>, method=PLAIN, rip=::ffff:115.119.64.179, lip=::ffff:115.119.64.18 0
Sep 2 07:22:23 mail dovecot: POP3(dharmender.sharma@kapsonsolutions.org): Disco nnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 2 07:22:24 mail dovecot: pop3-login: Login: user=<mktg1@kapsonsolutions.org >, method=PLAIN, rip=::ffff:115.119.64.179, lip=::ffff:115.119.64.180
Sep 2 07:22:24 mail dovecot: POP3(mktg1@kapsonsolutions.org): Disconnected: Log ged out top=0/0, retr=0/0, del=0/0, size=0
Sep 2 07:22:30 mail postfix/cleanup[4525]: fatal: unsupported dictionary type: mysql
Sep 2 07:22:30 mail postfix/trivial-rewrite[4526]: fatal: unsupported dictionar y type: mysql
Sep 2 07:22:30 mail postfix/smtpd[4524]: fatal: unsupported dictionary type: my sql
Sep 2 07:22:31 mail postfix/master[2696]: warning: process /usr/libexec/postfix /cleanup pid 4525 exit status 1
Sep 2 07:22:31 mail postfix/master[2696]: warning: /usr/libexec/postfix/cleanup : bad command startup -- throttling
Sep 2 07:22:31 mail postfix/master[2696]: warning: process /usr/libexec/postfix /trivial-rewrite pid 4526 exit status 1
Sep 2 07:22:31 mail postfix/master[2696]: warning: /usr/libexec/postfix/trivial -rewrite: bad command startup -- throttling
Sep 2 07:22:31 mail postfix/master[2696]: warning: process /usr/libexec/postfix /smtpd pid 4524 exit status 1
Sep 2 07:22:31 mail postfix/master[2696]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling