Topic: Am I locked out?.. Client SMTP and telnet gets "Connection Refused"
==== Required information ====
- iRedMail version: 0.9.2
- Linux/BSD distribution name and version: CentOS 6.5 (Final)
- Store mail accounts in which backend: MySQL
- Web server: Nginx
- Manage mail accounts with iRedAdmin-Pro? Not yet.
- Related log if you're reporting an issue: Unknown.
====
I have two VPS setups:
CentOS 6.5 (Final) = Fresh iRedMail setup (Server A below.)
CentOS 6.6 (Final) = Nginx proxy with Node.js services (Server B below.)
My personal computer (with Outlook 2013) connects via IMAP+TLS/SMTP+TLS to Server A and can send/receive mail without any problems... so I don't think my problem is anything with iRedMail.
My Node.js application on Server B uses nodemailer-smtp-transport to connect to the SMTP service on Server A. I think I tried too many attempts against Server A and I think I may have locked Server B out... is this possible? Below is my Node.js application with its output, telnet output from both servers and the /var/log/maillog from Server A.
My Node.js Application
var nodemailer = require('nodemailer');
var smtpTransport = require('nodemailer-smtp-transport');
var emailerTransporter = nodemailer.createTransport(smtpTransport({
'host':'[Server A hostname]',
'port':587,
'auth':{
'user':'[email]',
'pass':'[password]'
},
'secure':false
}));
emailerTransporter.sendMail({
"from":'[name] <[email]>',
"to":'[email]',
"subject":'[subject]',
"html":'<h1>test</h1>'
},function(){
console.log(arguments);
});The above Node.js (with some data omitted) results in this:
[dev@nodes ~]# node test.js
{ '0':
{ [Error: connect ECONNREFUSED]
code: 'ECONNREFUSED',
errno: 'ECONNREFUSED',
syscall: 'connect' } }
[dev@nodes ~]#telnet from Server A
[dev@mail /]# telnet 127.0.0.1 587
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 [Server A hostname] ESMTP Postfix
quit
221 2.0.0 Bye
Connection closed by foreign host.
[dev@mail /]#telnet from Server B
[dev@nodes ~]# telnet [Server B hostname] 587
Trying [Server B address]...
telnet: connect to address [Server B address]: Connection refused
[dev@nodes ~]#/var/log/maillog from Server A
[dev@mail /]# cat /var/log/maillog
Aug 24 14:59:57 mail postfix/smtpd[8105]: connect from [Server B hostname][Server B IP address]
Aug 24 14:59:57 mail postfix/smtpd[8105]: lost connection after UNKNOWN from [Server B hostname][Server B IP address]
Aug 24 14:59:57 mail postfix/smtpd[8105]: disconnect from from [Server B hostname][Server B IP address]
Aug 24 14:59:57 mail postfix/smtpd[8103]: connect from from [Server B hostname][Server B IP address]
Aug 24 14:59:57 mail postfix/smtpd[8103]: lost connection after UNKNOWN from [Server B hostname][Server B IP address]
Aug 24 14:59:57 mail postfix/smtpd[8103]: disconnect from from [Server B hostname][Server B IP address]
Aug 24 15:03:12 mail postfix/smtpd[8118]: connect from from [Server B hostname][Server B IP address]
Aug 24 15:03:12 mail postfix/smtpd[8118]: lost connection after UNKNOWN from [Server B hostname][Server B IP address]
Aug 24 15:03:12 mail postfix/smtpd[8118]: disconnect from from [Server B hostname][Server B IP address]
Aug 24 15:05:36 mail postfix/smtpd[8152]: connect from from [Server B hostname][Server B IP address]
Aug 24 15:05:36 mail postfix/smtpd[8152]: lost connection after UNKNOWN from [Server B hostname][Server B IP address]
Aug 24 15:05:36 mail postfix/smtpd[8152]: disconnect from from [Server B hostname][Server B IP address]
Aug 24 18:43:50 mail postfix/smtpd[8524]: connect from localhost[127.0.0.1]
Aug 24 18:43:54 mail postfix/smtpd[8524]: disconnect from localhost[127.0.0.1]
[dev@mail /]#While I have used the same Node.js code for other SMTP services without any problems, I think while I was adjusting my Node.js configuration I may have tripped a limit with iRedMail?.. is there a log I am missing?.. or could my server with my Node.js applications be blacklisted all together? Sorry ahead if I am missing any important logs or any other helpful information. So far I've really been enjoying iRedMail, such great service!
P.S. When creating a new topic, if I click "Preview topic" then the "Required information" header is prepended into my message box before the original.
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