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SmallBusinessServer2003 SMTP connector is not sending mail out

JYLWest
JYLWest asked
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Last Modified: 2012-05-06
HI, i have a smtp problem, running SBS2003 with Exchange 2003. 3 month old server installation, used to run fine now stopped sending mail. Mail stuck in SMTP connector. If i force mail it delivers 1or 2. I tried nslookup option
nslookup
set q=mx
remoteDomain.com

and it resolves to the domains. i use Viper and Ninja as AV/AS and this does not seem to be the problem. Any ideas?
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SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
Let me Help you...
Some questions for you:
1) is this for all the external domains or certain domains you are not able to send mails out?
2) Do you have a smart host configured on the Default smtp virtual server or the smtp connector?
3) You said you get the MX fine.. try to do telnet to the mx / ip of any of the domain and let me know what banner do you get...
4) go to properties of your default smtp virtual server--. general tab--> at the bottom enable logging--> chick the drop down and select NCSA Logging...
5) restart the smtp service

Let me know the results...
Dont worry man.. we wil fix this....

-x
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
6) One more thing at the end...

do
 telnet maila.microsoft.com 25
ehlo

now when you do this it wil give you one connecting ip next to it... what is it ?

Please answer my Questions and the action plans Point wise....
It will be easy for me..

;-)

Author

Commented:
1) is this for all the external domains or certain domains you are not able to send mails out?
--- it seems to be for certain domains only.
2) Do you have a smart host configured on the Default smtp virtual server or the smtp connector?
--- i have a smart host configured on both
3) You said you get the MX fine.. try to do telnet to the mx / ip of any of the domain and let me know what banner do you get...
if i telnet to pfeiffer-armaturen.com i get 220 ns4.omg.de esmtp postfix
4) go to properties of your default smtp virtual server--. general tab--> at the bottom enable logging--> chick the drop down and select NCSA Logging...
---done
5) restart the smtp service
---done
6) do /  telnet maila.microsoft.com 25 / ehlo
---165.145.66.97

Thansk for the help, however it seems to be pushing the mail out fine, now, but I think the checking is still worth it.

SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
Ok great.. i got the resolution for your Issue... You are Blackilsted by some RBLS.. coz of some reason..
go to
http://www.mxtoolbox.com/blacklists.aspx

and put in 165.145.66.97

you will see all those who blacklisted you..
+> Now they have blacklisted may be coz of following reason :

1. You are open for relay
2. you are spamming out ...
3. enable all the spam filtering on the exchagne server...and configure them properly...

After enabling the smap filters on the exchagne server... >>>contact them and get your IP white listed

Let me know if you want help configuring spam filtering....

-x


Author

Commented:
please give me some guidance on the spam filtering, will this be on the exchange server itself or with 3rd party software?
Senior System Engineer
CERTIFIED EXPERT
Commented:
follow this to enable spam filtering:  [ i willl never recomend 3rd party anti spam.. these are good man]...

1) fist and the formost thing is to enable all the spam filterings on the exchange server :

--> On the properties of Message Delivery under Global Settings in the Recipients Filtering tab checked the 'Filter recipients who are not in the directory'
--> On the Sender Filtering tab checked the 'Filter messages with blank sender'
-->  On the Connection Filtering tab added a rule in the Block List Service Configuration as a display name of Spam Haus, DNS suffix of zen.spamhaus.org and on the return status code clicked on the Match filter rule to any of the filter responses and added the IP address from 127.0.0.2 to 127.0.0.12 with an exception
of 127.0.0.1, 127.0.0.3 and 127.0.0.9
-->  On the IMF tab changed the Gateway Blocking Configuration threshold to 7 and Archive When blocking messages and the Store Junk Email Configuration threshold to 6
-> then go to properties of default smtp virtual server--> general tab-->advance button--> edit--> and check mark all the filters except sender id filtering.................

-> enable tarpeting through the registry path :
-> NOW we wil add a regustry key so that if the spammer is using any kind of script exchange will break it....HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SMTPSVC\Parameters and added a deword value TarpitTime and gave it a value of 5.

2) now stop the SMTP service. and go to "C:\Program Files\Exchsrvr\Mailroot location and rename Mailroot to MailrootOLD.
3) restart SMTP...... check the mail flow and monitor the queues......

HOPE YOU WILL LIKE THIS.......

-X

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SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
check if the server is open for relay. properties of Default smtp virtual server ->access tab--> relay
you should have the first option selected there.

Author

Commented:
hi there, x-sam,
I have done the above and am checking the queues. I will keep you posted, but it looks good. However I still have problems with getting my self whitelisted from SORBS. It looks like it could be an ISP related issue as it states IP range 165.145.0.0., this is my error on sorbs:
Netblock: 165.145.0.0/16 (165.145.0.0-165.145.255.255)
Record Created: Tue Feb 6 09:05:10 2007 GMT
Record Updated: Tue Feb 6 09:05:10 2007 GMT
Additional Information: [[#143815] Locally Supplied list (06/02/2007)] Dynamic/Generic IP/rDNS address, use your ISPs mail server or get rDNS set to indicate static assignment.

don't know if you know if anything special I can try.
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
IP range 165.145.0.0.. is this yours.... well Those RBLS who have blocked you can only whitelist you..
or else what you can do is... change your connecting ip.. and that will fix the issue.. now that you have enabled all the filterings i am sure you will never face any spam issues.. trust me ;-)

-x

Author

Commented:
Hey there, I have chekced the queuees now and I have found that all users except 1's email is going out. This is very strange. I dumped all mail in the queuee and asked them to send tes mails, i.e. gmail and some other domains, local and international. All 3 mails sit in the queuee! This user is also the only Vista user, though I cannot see if that's got to do with anything? We've upgraded all users to Office 2007. I am actually at a loss here. i am thinking of trying to use another smart host, but am not sure if this will make a differnace, as most of the mail is going out. Any ideas?
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
Yes you can change the smarthost... Buttttt... at the end of the day... it will be the connecting ip which will make the difference... your conencting ip is blocked at their ena.. contact them and get it white listed...
do these tasks :
1.
go to command prompt...

nslookup
set q=mx
gmail.com

--> does this give you the Mx record of gmail ?
now
telnet to the ip / mx of gmail on port 25
what banner do you get? or does it drop the connection ?

2.

open exchange sys manager/// go to default smtp virtual server // under general tab // click on Enable logging  // and select NCSA Log format..

-> restart smtp service...
->  try sending some email...

now... go to start-- run -- type logfiles...
take the log file and paste it here.............

i will show you whats happenning...

-x

Author

Commented:
hi,
1) i get 3 ip's for gmail, but cannot telnet to any of them - so no banner, i can however telnet to maila.microsoft.com - i get:
220 mail04.microsoft.com Microsoft ESMTP MAIL Service ready at Fri, 20 Feb 2009
03:37:53 -0800
ehlo
250-mail04.microsoft.com Hello [165.145.120.1]
250-SIZE 10485760
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-AUTH
250-8BITMIME
250-BINARYMIME
250 CHUNKING

2)122.162.142.81 - abts-north-dynamic-081.142.162.122.airtelbroadband.in [20/Feb/2009:13:24:33 +0200] "EHLO -? abts-north-dynamic-081.142.162.122.airtelbroadband.in SMTP" 250 316
122.162.142.81 - abts-north-dynamic-081.142.162.122.airtelbroadband.in [20/Feb/2009:13:24:33 +0200] "MAIL -? FROM:<gnubbil@PastaPomodoro.fishbowl.com> SMTP" 250 59
122.162.142.81 - abts-north-dynamic-081.142.162.122.airtelbroadband.in [20/Feb/2009:13:24:40 +0200] "RCPT -? TO:<robg@monitor-samson.co.za> SMTP" 250 0
122.162.142.81 - abts-north-dynamic-081.142.162.122.airtelbroadband.in [20/Feb/2009:13:24:44 +0200] "DATA -?<MONITORpq666QwaGbdX00000004@monitor.samsonsa.local> SMTP" 250 135
122.162.142.81 - abts-north-dynamic-081.142.162.122.airtelbroadband.in [20/Feb/2009:13:24:45 +0200] "QUIT -?abts-north-dynamic-081.142.162.122.airtelbroadband.in SMTP" 240 71
116.93.236.162 - ZEIYYDUN [20/Feb/2009:13:29:52 +0200] "EHLO -? ZEIYYDUN SMTP" 250 316
116.93.236.162 - SNWYBFKUKF [20/Feb/2009:13:30:13 +0200] "EHLO -? SNWYBFKUKF SMTP" 250 316
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:31:09 +0200] "EHLO -? [190.98.27.141] SMTP" 250 315
193.109.254.147 - mail27.messagelabs.com [20/Feb/2009:13:31:45 +0200] "HELO -? mail27.messagelabs.com SMTP" 250 52
209.85.218.164 - mail-bw0-f164.google.com [20/Feb/2009:13:31:46 +0200] "EHLO -? mail-bw0-f164.google.com SMTP" 250 316
116.93.236.162 - CCCUYYDW [20/Feb/2009:13:32:04 +0200] "EHLO -? CCCUYYDW SMTP" 250 316
202.152.237.116 - localhost [20/Feb/2009:13:32:07 +0200] "EHLO -? localhost SMTP" 250 317
116.93.236.162 - CCCUYYDW [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM: <anesthetizee@crslawfirm.com> SMTP" 250 52
209.85.218.164 - mail-bw0-f164.google.com [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM:<puca.adamscarstens24@gmail.com> SMTP" 250 55
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM:<linbeistermet@beister.de> SMTP" 250 49
193.109.254.147 - mail27.messagelabs.com [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM:<u.vandenhengst@royalhaskoning.com> SMTP" 250 58
116.93.236.162 - ZEIYYDUN [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM: <anesthetizee@crslawfirm.com> SMTP" 250 0
116.93.236.162 - ZEIYYDUN [20/Feb/2009:13:32:32 +0200] "QUIT -?ZEIYYDUN SMTP" 240 0
202.152.237.116 - localhost [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM: <susannez@domainnews.com> SMTP" 250 48
116.93.236.162 - SNWYBFKUKF [20/Feb/2009:13:32:32 +0200] "MAIL -? FROM: <gazadb@mazziparisini.com> SMTP" 250 0
116.93.236.162 - SNWYBFKUKF [20/Feb/2009:13:32:32 +0200] "QUIT -?SNWYBFKUKF SMTP" 240 0
209.85.218.164 - mail-bw0-f164.google.com [20/Feb/2009:13:32:32 +0200] "RCPT -? TO:<SiraajM@monitor-samson.co.za> SMTP" 250 0
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:32:37 +0200] "RCPT -? TO: <pierre@monitor-samson.co.za> SMTP" 550 0
116.93.236.162 - CCCUYYDW [20/Feb/2009:13:32:37 +0200] "RCPT -? TO: <svenh@monitor-samson.co.za> SMTP" 550 0
202.152.237.116 - localhost [20/Feb/2009:13:32:37 +0200] "RCPT -? TO: <steel@monitor-samson.co.za> SMTP" 550 0
202.152.237.116 - localhost [20/Feb/2009:13:32:37 +0200] "QUIT -?localhost SMTP" 240 0
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:32:37 +0200] "DATA - SMTP" 503 0
116.93.236.162 - CCCUYYDW [20/Feb/2009:13:32:37 +0200] "DATA - SMTP" 503 0
193.109.254.147 - mail27.messagelabs.com [20/Feb/2009:13:32:38 +0200] "RCPT -? TO:<jochen@monitor-samson.co.za> SMTP" 250 0
193.109.254.147 - mail27.messagelabs.com [20/Feb/2009:13:32:42 +0200] "DATA -? <600DDAE5F9D3A741A270EA58313E3F6E0317B79F@dorlv102.corporateroot.net> SMTP" 250 153
209.85.218.164 - mail-bw0-f164.google.com [20/Feb/2009:13:32:42 +0200] "DATA -? <889d1d810902200343v7bd90748lfddc19dfa509bcea@mail.gmail.com> SMTP" 250 145
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:32:42 +0200] "QUIT -?[190.98.27.141] SMTP" 240 30
193.109.254.147 - mail27.messagelabs.com [20/Feb/2009:13:32:43 +0200] "QUIT -?mail27.messagelabs.com SMTP" 240 71
83.8.185.185 - pjiye [20/Feb/2009:13:32:45 +0200] "EHLO -? pjiye SMTP" 250 314
83.8.185.185 - pjiye [20/Feb/2009:13:32:46 +0200] "MAIL -? FROM: <allaasley_ww@unidial.com> SMTP" 250 49
116.93.236.162 - CCCUYYDW [20/Feb/2009:13:32:47 +0200] "MAIL -? FROM: <godfathersfwg74@casademendiz.com> SMTP" 503 0
116.93.236.162 - CCCUYYDW [20/Feb/2009:13:32:47 +0200] "QUIT -?CCCUYYDW SMTP" 240 0
83.8.185.185 - pjiye [20/Feb/2009:13:32:56 +0200] "RCPT -? TO: <michelleh@monitor-instruments.co.za> SMTP" 550 0
83.8.185.185 - pjiye [20/Feb/2009:13:33:01 +0200] "RCPT -? TO: <ameliaj@monitor-instruments.co.za> SMTP" 550 0
83.8.185.185 - pjiye [20/Feb/2009:13:33:06 +0200] "RCPT -? TO: <rfy@monitor-instruments.co.za> SMTP" 550 0
83.8.185.185 - pjiye [20/Feb/2009:13:33:06 +0200] "RCPT -? TO: <krisk@monitor-instruments.co.za> SMTP" 250 0
83.8.185.185 - pjiye [20/Feb/2009:13:33:06 +0200] "RCPT -? TO: <bobbyb@monitor-instruments.co.za> SMTP" 250 0
196.43.2.142 - OutboundConnectionResponse [20/Feb/2009:13:33:09 +0200] "- -?220 ctb-mesg-1-2.saix.net ESMTP Postfix SMTP" 0 39
196.43.2.142 - OutboundConnectionCommand [20/Feb/2009:13:33:09 +0200] "EHLO -?monitor.samsonsa.local SMTP" 0 4
196.43.2.142 - OutboundConnectionResponse [20/Feb/2009:13:33:09 +0200] "- -?250-ctb-mesg-1-2.saix.net SMTP" 0 25
196.43.2.142 - OutboundConnectionCommand [20/Feb/2009:13:33:09 +0200] "MAIL -?FROM:<JWest@monitor-samson.co.za> SIZE=1293 SMTP" 0 4
196.43.2.142 - OutboundConnectionResponse [20/Feb/2009:13:33:09 +0200] "- -?250 2.1.0 Ok SMTP" 0 12
196.43.2.142 - OutboundConnectionCommand [20/Feb/2009:13:33:09 +0200] "RCPT -?TO:<alastair.bovim@stratosglobal.com> SMTP" 0 4
196.43.2.142 - OutboundConnectionCommand [20/Feb/2009:13:33:09 +0200] "RCPT -?TO:<jwest@jaluti.com> SMTP" 0 4
196.43.2.142 - OutboundConnectionResponse [20/Feb/2009:13:33:10 +0200] "- -?250 2.1.5 Ok SMTP" 0 12
83.8.185.185 - pjiye [20/Feb/2009:13:33:11 +0200] "RCPT -? TO: <pvbu@monitor-instruments.co.za> SMTP" 550 0
83.8.185.185 - pjiye [20/Feb/2009:13:33:11 +0200] "RCPT -? TO: <sales@monitor-instruments.co.za> SMTP" 250 0
83.8.185.185 - pjiye [20/Feb/2009:13:33:11 +0200] "RCPT -? TO: <andren@monitor-instruments.co.za> SMTP" 250 0
209.85.218.164 - mail-bw0-f164.google.com [20/Feb/2009:13:33:13 +0200] "QUIT -?mail-bw0-f164.google.com SMTP" 240 71
83.8.185.185 - pjiye [20/Feb/2009:13:33:16 +0200] "RCPT -? TO: <cgvirm@monitor-instruments.co.za> SMTP" 550 0
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:33:39 +0200] "EHLO -? adsl.viettel.vn SMTP" 250 316
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:33:40 +0200] "MAIL -? FROM: <loiren2@vladvisors.com> SMTP" 250 47
83.8.185.185 - pjiye [20/Feb/2009:13:33:44 +0200] "QUIT -?pjiye SMTP" 240 46
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:33:45 +0200] "RCPT -? TO: <svenh@monitor-samson.co.za> SMTP" 550 0
189.104.169.107 - ywmmc [20/Feb/2009:13:33:47 +0200] "EHLO -? ywmmc SMTP" 250 317
189.104.169.107 - ywmmc [20/Feb/2009:13:33:48 +0200] "MAIL -? FROM: <jamila_kristian_dx@pacificnet.net> SMTP" 250 58
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:33:50 +0200] "RCPT -? TO: <michelleh@monitor-instruments.co.za> SMTP" 550 0
189.104.169.107 - ywmmc [20/Feb/2009:13:33:53 +0200] "RCPT -? TO: <michelleh@monitor-instruments.co.za> SMTP" 550 0
189.104.169.107 - ywmmc [20/Feb/2009:13:33:53 +0200] "QUIT -?ywmmc SMTP" 240 0
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:33:55 +0200] "RCPT -? TO: <rfy@monitor-instruments.co.za> SMTP" 550 0
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:33:55 +0200] "DATA - SMTP" 503 0
115.73.232.232 - adsl.viettel.vn [20/Feb/2009:13:34:00 +0200] "QUIT -?adsl.viettel.vn SMTP" 240 30
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:34:50 +0200] "EHLO -? [190.98.27.141] SMTP" 250 315
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:34:51 +0200] "MAIL -? FROM:<linsuhwmet@suhw.de> SMTP" 250 43
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:34:56 +0200] "RCPT -? TO: <pierre@monitor-samson.co.za> SMTP" 550 0
190.98.27.141 - [190.98.27.141] [20/Feb/2009:13:34:56 +0200] "DATA - SMTP" 503 0
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
If you are not able to connect to their MX... How will you mail them ?? Man i am telling you .. they have blocked you...

you are able to connect to microsoft.. so you will be able to send emails to them... for sure...
but gmail--> no connection--> no banner -> so that means thy blocked you

also...i did a black list query and found RBL : BLARSBL HAS BLOCKED You too...

-x
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
the NCSA LOG Shows:

83.8.185.185 - pjiye [20/Feb/2009:13:33:11 +0200] "RCPT -? TO: <andren@monitor-instruments.co.za> SMTP" 250 0
209.85.218.164 - mail-bw0-f164.google.com [20/Feb/2009:13:33:13 +0200] "QUIT -?mail-bw0-f164.google.com SMTP" 240 71

-> after RCPT TO Command.... gmail quits the connection...

Author

Commented:
I note what you say, but have done some further reading and enquiry about this. It seems that because i'm on a dynamic dns, DSL, it will list the range as blcoked, i.e. 165.145.0.0, so if i disconnect and reconnect then i get another IP, though still in that range, as long as i use my ISP's smtp I should be fine. This I'm doing. "The PBL is simply a list of ALL of the world's end-user broadband IP space, i.e: IP space normally assigned to broadband/ADSL customers. It is perfectly normal for dynamic IP addresses (DSL, DHCP, cable, dialup) to be listed on the PBL. In fact all IP addresses in the world which are not designated mail server machines *should be* on the PBL." quoted from spamhaus.
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:

after RCPT TO: it should give ok
and then you should be able to type data etc etc... but gmail Quits ur connection directly....
You are Blacklisted Big time :
go to http://www.mxtoolbox.com/blacklists.aspx and put in your connecting IP : 165.145.120.1
it will give you all the RBLs who black listed you ...

like :

Blacklist Name   Status Reason TTL Response Time (ms)
NOMOREFUNN  LISTED telkomadsl.co.za. Dynamic IP or generic rDNS. Use your ISPs mail service, or whitelist at: Detail 1156334532
Return codes were: 127.0.0.3 1768 31
SORBS-BLOCK  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 16
SORBS-DUHL  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-HTTP  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-MISC  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-SMTP  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-SOCKS  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-SPAM  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-WEB  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
SORBS-ZOMBIE  LISTED Dynamic IP Addresses See: Detail
Return codes were: 127.0.0.10 3269 31
Spamhaus-ZEN  LISTED Detail
Return codes were: 127.0.0.11 1469 766
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
You have configured all the spam filters so you are good to go.. just get your self white listed and evethng will be fine...
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
YEA THE BEST SAY as is said is change your connecting Ip....
other option is : contact them and get yourself white listed...

No other option for you buddy

-x

Author

Commented:
Getting another IP is a problem, I'm DSL and cannot get my own IP, so I'm stuck with dynamic IP. By the looks on the SORBS site, it the whole range thats blocked??? 165.145.0.0 If I log into the webmail for exchange and send to gmail it gets delivered, does the webmail use a differnent route than normal exchange?

Author

Commented:
If i run the tests avaialbe on MXToolBox i get Reverse DNS FAILED, could this be a problem?
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
Yes as i said.. you should have a PTR record of what ever connecting Ip you got at your ISP ..
That can cause issues for sending mails for ATT, COMPCAST, AOL etc.. cos thy require PTR...
you need to take care of both... Black list and PTR
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:

Since changing Ip is difficult for you.. you got only 1 option left :
yOu need to contact each RBL and they will tell you whats the procedure of whitelist..
Just tell them that you have enabled all the spam filters and its not more spamming out...

They will definitely help you...........

-X

Author

Commented:
where do i setup the ptr record, keeping in mind my ip from my isp is dynamic.
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:
you need to create a ptr record on your ISP dns. and it shoud be for Your connecting IP.. which your server uses to send mails out...

Author

Commented:
me again, i'm not making life easier for you...
I have contacted the SORBS guys and they tell me that because I'm on a dynamic dns, those ip's will allways be listed and i should use my isp's mail settings. good.
Now i'm testing the queuee's for specific domain not being able to send the mails to.
If I try telnet to one of the domains, mailgate1.samson.ag i get no banner, i type ehlo or helo i get permission denied. What does this mean? This is one of the domains i'm tring to send to.
SurajSenior System Engineer
CERTIFIED EXPERT

Commented:

Dynamic dns? Please tell me about it.. how is it configured at  your end...
try ehlo abc.com

Author

Commented:
in brief:
I have a sbs2003 server running exchange. This sits behind a linux firewall on a dsl connection. I make use of dyndns.org to get my email on the exchange server, as each time i connect to my isp i get a new ip address. to send my mail i use smtp.saix.net, which is also my isp.
it seems that they might need authenitication.. the mailgate1.samson.ag guys.

Author

Commented:
I have used a network monitoring tool and get the below errors:
220 ctb-mesg8.saix.net ESMTP Postfix

EHLO monitor.samsonsa.local
250-ctb-mesg8.saix.net
250-PIPELINING
250-SIZE 102400000
250-ETRN
250 8BITMIME
MAIL FROM:<JochenG@monitor-samson.co.za> SIZE=8503
250 Ok
RCPT TO:<west.jacques@gmail.com>
250 Ok
421 ctb-mesg8.saix.net Error: timeout exceeded

It's alsmost as my server is not responding when getting the OK???
SurajSenior System Engineer
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Commented:
the above telnet thing.. where did u take this...
is this for receivng emails from internet or going out?

The above track is incomplete.. please paste all that you get through it...

Author

Commented:
HI X-sam,
Sorry for my delayed repsonse but I'm trying one or two other things! Will keep you posted.
SurajSenior System Engineer
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Commented:
no problem

Author

Commented:
HI x-sam,

I have acutally found the problem.
I use Viper from Sunbelt Software as my AV and Ninja as my AS, and have found  that by doing a test telnet messages, that do eventually come through, have an item in the header that indicate Vipre thinks the message is spoofed. So I un-installed and re-installed Viper and it seems to be sprted by now. This was noted by a collegued of mine. I will keep a close eye on it but this seemed to have solved the problem. Thanks for your assistance!
SurajSenior System Engineer
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Commented:
Any ways.. you were blacklisted... what did you do about that.. did you contacted them??

Author

Commented:
yes, they said that all dsl type connections will allways be blacklisted (which i found strange) as long as i use my isp as an smtp connection i should be fine. interesting...
SurajSenior System Engineer
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Commented:
hmmm  Yea.. interesting... if you are having a dynamic ip then there is a point.. but dsl..... hmm...

anyways.. check it again .. now that its working...

go to http://www.mxtoolbox.com/blacklists.aspx and put in your connecting IP : 165.145.120.1

what does it give now?

-x

Author

Commented:
blacklisted...165.145.145.138
SurajSenior System Engineer
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Commented:
now which is that IP? i believe your connecting ip is 165.145.120.1 ?

Author

Commented:
new ip assigned from ISP
SurajSenior System Engineer
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Commented:
Ohh ok.. anyways Issue is fixed so thats Great !!! Njoy ;-)



-=@x-sAm@=-


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