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Email to this domain bounce

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Email to this domain bounce - 20.Oct.2011 12:50:49 AM   
necare

 

Posts: 10
Joined: 23.Oct.2010
Status: offline
Hi all,

I just unblock from CBL, now every smtp is go through.
But there is 1 domain that email can't go through. It bounce back.
Below is the bounce message.

There was a SMTP communication problem with the recipient's email
> server.  Please contact your system administrator.
>    <mail.***.com.my #5.5.0 smtp;550 Denied by policy>


I perform smtpdiag and this is the result.



C:\smtpdiag>smtpdiag.exe exadmin@***.com.my haslina_piee@***.co.jp
 
Searching for Exchange external DNS settings.
Computer name is MAIL.
VSI 1 has the following external DNS servers:
161.142.212.**,161.142.227.**,161.142.2.**,161.142.201.**
 
Checking SOA for toko.co.jp.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.
 
Checking local domain records.
Checking MX records using TCP: ***.com.my.
Checking MX records using UDP: ***.com.my.
Both TCP and UDP queries succeeded. Local DNS test passed.
 
Checking remote domain records.
Checking MX records using TCP: ***.co.jp.
Checking MX records using UDP: ***.co.jp.
Both TCP and UDP queries succeeded. Remote DNS test passed.
 
Checking MX servers listed for haslina_piee@***.co.jp.
Connecting to ns5.***.co.jp [210.225.100.***] on port 25.
Successfully connected to ns5.***.co.jp.

Help me, what could it be the problem
Post #: 1
RE: Email to this domain bounce - 20.Oct.2011 2:46:03 AM   
alanhardisty

 

Posts: 389
Joined: 28.Feb.2010
Status: offline
If you just removed yourself ftom the CBL block list, then you may also find yourself on other blocking sites.

Check on www.mxtoolbox.com/blacklists.aspx and www.blacklistalert.org

Also check your reputation on www.senderbase.org.

I think you will find yourself listed somewhere else.

Worst case, contact the recipient company and ask them why you are being blocked (if the above checks yield no results).

_____________________________

Alan Hardisty

http://www.it-eye.co.uk
http://alanhardisty.wordpress.com
http://www.exchange-certificates.com

(in reply to necare)
Post #: 2
RE: Email to this domain bounce - 20.Oct.2011 9:28:08 AM   
necare

 

Posts: 10
Joined: 23.Oct.2010
Status: offline
Seem like there is 1 sites that still block me.

They said that it will automatically un-block me on the 25th.

(in reply to alanhardisty)
Post #: 3
RE: Email to this domain bounce - 20.Oct.2011 9:36:23 AM   
alanhardisty

 

Posts: 389
Joined: 28.Feb.2010
Status: offline
Okay - that's one that you can find! There maybe some you can't find (easily), so hopefully once you drop off the one you know about, things will improve for you.

_____________________________

Alan Hardisty

http://www.it-eye.co.uk
http://alanhardisty.wordpress.com
http://www.exchange-certificates.com

(in reply to necare)
Post #: 4
RE: Email to this domain bounce - 21.Oct.2011 8:25:36 AM   
necare

 

Posts: 10
Joined: 23.Oct.2010
Status: offline
Ok thanks,

But may I know why is it if this 1 site still block me, only this domain (***.co.jp.) smtp email can't go through. The rest already are ok. 

(in reply to alanhardisty)
Post #: 5
RE: Email to this domain bounce - 21.Oct.2011 8:48:40 AM   
alanhardisty

 

Posts: 389
Joined: 28.Feb.2010
Status: offline
I can't possibly tell you what the one site is using or doing that will be stopping you, but if you have been blacklisted somewhere, it usually takes a while to get 100% mail-flow returned and you will have to contact some companies directly to manually unblock you because that is their process.

Some companies use Blocklists and when you are off those, then your mail-flow returns, some manually remove you once you get blocked somewhere and you have to request this. Everyone is different and not everyone follows the same processes for blocking / unblocking.

Apparently mail from our own server was blocked by one company the other day when someone at our site tried too many times to log in to a website Control Panel! No idea why they would block based on that - but that's their process and they are presumably happy with that.

_____________________________

Alan Hardisty

http://www.it-eye.co.uk
http://alanhardisty.wordpress.com
http://www.exchange-certificates.com

(in reply to necare)
Post #: 6
RE: Email to this domain bounce - 26.Oct.2011 12:56:03 AM   
necare

 

Posts: 10
Joined: 23.Oct.2010
Status: offline
Hi Alan,

I already clear from the block list. But i test send email to the domain but still it bounce back and reject. Any idea why.

No configuration is change. So why does only this domain unable to go through?

(in reply to alanhardisty)
Post #: 7
RE: Email to this domain bounce - 26.Oct.2011 4:53:14 AM   
alanhardisty

 

Posts: 389
Joined: 28.Feb.2010
Status: offline
There may be various reasons as I have already advised.

At this stage I would contact them directly and ask them why they are blocking you. They should be able to tell you and resolve the issue.

_____________________________

Alan Hardisty

http://www.it-eye.co.uk
http://alanhardisty.wordpress.com
http://www.exchange-certificates.com

(in reply to necare)
Post #: 8

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