MRatWork Forum by Mustafa Ramadhan

Sawo Project - Kloxo-MR Discussions => Kloxo-MR Technical Helps => Topic started by: ItzJustinN on 2015-05-08, 20:09:32

Title: smtp blocked
Post by: ItzJustinN on 2015-05-08, 20:09:32

not sure if this is kloxo issue or linux issue
but i cannot send mail after my hdd failure and reinstall everything

can receive mail no problem
but maillog saying cannot establish smtp connection for outgoing mail

all ports are open in my firewall and i can telnet to any smtp server on port 25

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-08, 20:24:30

What's about telnet port 25 from outside. Possible port 25 blocked by provider (ask to your provider).

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-08, 20:32:18

its not blocked, i just had to send outbound email to smtp server
but not able to send email direct or with relay,

error is same that connection couldnt be established


also telnet from outside is working

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-08, 21:11:09

Try 'yum reinstall *-toaster; sh /script/fixmail-all; sh /script/restart-mail'.

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-08, 21:24:13

still the same error after running the above commands

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-08, 23:00:56

Did you read http://forum.mratwork.com/kloxo-mr-tips-and-tricks/(tip)-how-to-setup-qmail-on-kloxo-mr/ before?

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 06:48:28

i double checked, and that info is set in my server properly.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 07:05:34

Are you using Kloxo-MR 6.5 or 7.0?

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 07:09:38

7.0

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 07:22:16

Inform here 'dir -l /var/qmail/control'.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 07:25:37

Also 'hostname; hostname -f; hostname -s'

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 07:27:22

Code: [Select]

-rw-r--r--   1 root qmail   32 May  2 20:32 badloadertypes
-rw-r--r--   1 root root  2048 May  8 14:24 badloadertypes.cdb
-rw-r--r--   1 root qmail   25 May  2 20:32 badmailfrom
-rw-r--r--   1 root qmail   29 May  2 20:32 badmailto
-rw-r--r--   1 root qmail  360 May  2 20:32 badmimetypes
-rw-r--r--   1 root root  2048 May  8 14:24 badmimetypes.cdb
-rw-r--r--   1 root qmail   20 May  2 20:32 blacklists
lrwxrwxrwx   1 root qmail   14 May  8 14:21 clientcert.pem -> servercert.pem
-rw-r--r--.  1 root qmail    2 May  9 00:08 concurrencyincoming
-rw-r--r--   1 root qmail    3 May  2 20:32 concurrencyremote
-rw-r--r--.  1 root qmail    8 May  9 00:08 databytes
-rw-r--r--   1 root qmail   10 May  2 20:32 defaultdelivery
-rw-r--r--.  1 root qmail   23 May  9 00:08 defaultdomain
-rw-r--r--.  1 root qmail   23 May  9 00:08 defaulthost
-rw-r--r--   1 root qmail  245 May  8 14:23 dh1024.pem
-rw-r--r--   1 root qmail  156 May  8 14:21 dh512.pem
drwxr-xr-x. 13 root qmail 4096 May  2 20:32 domainkeys
-rw-r--r--   1 root qmail   10 May  8 14:24 locals
-rw-------   1 root root     0 May  3 14:54 locals.lock
-rw-r--r--   1 root qmail    4 May  2 20:32 logcount
-rw-r--r--   1 root qmail    8 May  2 20:32 logsize
-rw-r--r--.  1 root qmail   23 May  9 00:08 me
-rw-rw-r--   1 root root    40 May  8 14:24 morercpthosts
-rw-r--r--   1 root root  2133 May  8 14:24 morercpthosts.cdb
-rw-r--r--   1 root root   380 May  8 14:24 outgoingips
-rw-r--r--.  1 root qmail   24 May  1 19:26 plusdomain
-rw-r--r--   1 root qmail    0 May  2 20:32 policy
-rw-r--r--.  1 root qmail    6 May  9 00:08 queuelifetime
-rw-r--r--.  1 root root    18 May  9 00:08 rblsmtpd
-rw-rw-r--   1 root root     1 May  8 14:24 rcpthosts
-rw-------   1 root root     0 May  3 14:54 rcpthosts.lock
-rw-r--r--   1 root qmail  497 May  8 14:21 rsa512.pem
-rw-r--r--   1 root qmail 1689 May  2 20:32 servercert.pem
-rw-r--r--.  1 root root    42 May  9 00:08 simcontrol
-rw-r--r--   1 root root  2112 May  9 00:08 simcontrol.cdb
-rw-r--r--   1 root root  2143 May  9 00:08 simversions.cdb
-rw-r--r--.  1 root qmail   42 May  9 00:08 smtpgreeting
-rw-r--r--   1 root qmail   17 May  9 00:08 smtproutes
-rw-r--r--.  1 root root    40 May  9 00:08 spamdyke
-rw-r--r--   1 root qmail    2 May  2 20:32 spfbehavior
lrwxrwxrwx   1 root root    35 May  8 14:21 tlsclientciphers -> /var/qmail/control/tlsserverciphers
drwxr-xr-x.  3 root qmail 4096 May  2 20:32 tlshosts
-rw-r--r--.  1 root qmail 1542 May  8 14:21 tlsserverciphers
-rw-rw-r--   1 root root    79 May  8 14:24 virtualdomains
-rw-------   1 root root     0 May  3 14:54 virtualdomains.lock



Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 07:28:09

Code: [Select]

root@services:/var/log# hostname -s
services
root@services:/var/log# hostname -f
services.sunderfall.com
root@services:/var/log# hostname
services.sunderfall.com


Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 07:32:10

Nothing wrong with 'default' setting. It's weird.

Are you sure your sending mail not declaring as 'spam' by receipient?.

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 07:40:17

yes im sure its not a spam issue.

my ip by default listed in spamhaus and other lists
(if spam i get back message saying that email was rejected by remote server)
need send my mail to my isp smtp server, which i set in kloxo already
in smtp relay " :smtp.isp.net " ,,an can telnet to isp smtp server too on port 25
if i remove smtp relay info, and try to send message, i should get spam error
but message is same: cannot establish smtp connection

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 07:46:05

Send and received mail always use spamhaus (and others) for detecting IP blacklisted. If your IP is blacklisted, your send mail always failed.

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 07:49:44

its only failed if i dont use smtp relay of my isp.
i was sending mail without problem before my drive failed and i reinstall kloxo.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 08:07:28

Check your IP to http://mxtoolbox.com/

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 22:18:59

hi again,

i tried those tests before posting here.
mxtoolbox found no problem with my servers


btw, my error is the same as the other guy having mail problems, but mine is 7.0
May  9 15:04:41 services send: delivery 15: deferral: Sorry,_I_wasn't_able_to_establish_an_SMTP_connection._(#4.4.1)/

                                                                                                                                                             

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 22:58:06

I found sunderfall.com have 'bad' record in mxtoolbox. Blacklist by Spamhaus ZEN and SORBS DUHL. Also no SPF record, DKIM/DomainKeys and DMARC.

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 22:59:35

again i will tell you its listed because i have to send mail to ISP mail server
and those records are no reason i cannot open an SMTP connection in MY OWN server.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 22:59:48

Domain  sunderfall.com using cloudflare and look like dns records uncompletely.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 23:00:52

Quote from: ItzJustinN on 2015-05-09, 22:59:35

again i will tell you its listed because i have to send mail to ISP mail server

But, no SPF record, DKIM/DomainKeys and DMARC.

Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-09, 23:04:15

i dont know how to explain to you that NOTHING has changed for DNS or the Firewall.
email server was working fine before my hard drive crashed.
and i never set those records you speak of.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 23:28:43

I am just talking about facts. Testing with mxtoolbox.com, your domain isn't pass.

Other possibility is your dns setting in cloudflare not good (missing some records like SPF).

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-09, 23:46:14

This is different between our domain:

Code: [Select]

[root@op1 /]# telnet njbck.potissima.com 25
Trying 108.61.191.40...
Connected to njbck.potissima.com.
Escape character is '^]'.
220 njbck.potissima.com - Welcome to Qmail ESMTP
^C^]
telnet> quit
Connection closed.
[root@op1 /]# telnet sunderfall.com 25
Trying 104.18.51.221...
telnet: connect to address 104.18.51.221: Connection timed out
Trying 104.18.50.221...
telnet: connect to address 104.18.50.221: Connection timed out
Trying 2400:cb00:2048:1::6812:32dd...
telnet: connect to address 2400:cb00:2048:1::6812:32dd: Network is unreachable
Trying 2400:cb00:2048:1::6812:33dd...
telnet: connect to address 2400:cb00:2048:1::6812:33dd: Network is unreachable
[root@op1 /]#


Title: Re: smtp blocked
Post by: ItzJustinN on 2015-05-10, 09:18:35

you cant connect to my server at that address, because "sunderfall.com" 
go through cloudflare, and cloudflare blocking many ports.

only possible direct connect to : "services.sunderfall.com"
this address  not routed through cloudflare network.



anyways i created a new vps on the same network
installed kloxo 7 and setup routeable domain
but i had same problem with mail server could not connect.

Title: Re: smtp blocked
Post by: MRatWork on 2015-05-10, 11:55:34

Try add 'services' in 'A record' for sunderfall.com