Exemail mailservers listed on spam lists

Malware detection, cleaning and prevention
Post Reply
condamine
Posts: 14
Joined: Fri Jun 30, 2006 5:35 am
Location: Queensland

Exemail mailservers listed on spam lists

Post by condamine » Fri Jun 21, 2013 9:31 am

Not sure what is going on but I have had a few emails bounce in the last couple of days with messages such as
SMTP error from remote mail server after initial connection:
host postoffice03.mail-hub.dodo.com.au [202.136.40.236]:
550-220.233.0.70 is listed at bl.spamcop.net Blocked - see
550 http://www.spamcop.net/bl.shtml?220.233.0.70
host smtp4.health.qld.gov.au [165.86.81.115]:
550 5.7.1---------------Rejected - TRUSTmanager
Any info on how / why this is happening would be appreciated

Dazzled
Volunteer Site Admin
Posts: 6003
Joined: Mon Nov 13, 2006 1:16 pm
Location: Sydney

Re: Exemail mailservers listed on spam lists

Post by Dazzled » Fri Jun 21, 2013 10:24 am

Exetel's admins will have a word with Spamcop and TRUSTmanager.

How and why, though is simple; many mail servers use Spamcop blacklists to block spam sending IPs. It's a crude weapon and regularly blocks ISP mail servers. My own view is it's a dopey approach, but obviously others disagree.

What can be pretty certain though is that Spamcop has detected an Exetel user spamming. Invariably these are infected MS Windows computers. It doesn't take a minute to see if an ISP server's behind it, and to notify the ISP to take more appropriate action. Why these blacklisters don't is a mystery to me. Exetel can then politely chop off the spammer until he/she does something about cleaning the offending computer.

condamine
Posts: 14
Joined: Fri Jun 30, 2006 5:35 am
Location: Queensland

Re: Exemail mailservers listed on spam lists

Post by condamine » Fri Jun 21, 2013 1:57 pm

Thanks for the reply!
I hope exetel's admins have plenty of patience! From my experience getting off the spam lists can be difficult.

ShaminG
Exetel Staff
Posts: 960
Joined: Wed Jan 06, 2010 10:11 am
Location: Sydney, Australia

Re: Exemail mailservers listed on spam lists

Post by ShaminG » Fri Jun 21, 2013 3:35 pm

Our sysadmins have confirmed the issue has now been rectified. Could you kindly monitor the services and let us know if you come across any further issues.

We apologize for any inconvenience caused to you in this regard.

Mixer
Posts: 180
Joined: Sun Mar 30, 2008 2:21 pm
Location: Sydney - Randwick

Re: Exemail mailservers listed on spam lists

Post by Mixer » Tue Jul 30, 2013 5:33 pm

I'm having issues with AOL - getting mail delivery bounce with:
"SMTP error from remote mail server after initial connection: host mailin-03.mx.aol.com [64.12.90.33]: 421 4.7.1 : (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html:
Which comes back with "421 DYN:T1 The IP address you are sending from has been temporarily rate limited due to lack of whitelisting" blah blah...Is this the same issue?
RAND-NF/20INCTEL-Draytek 2710vn

Arshad Hassim
Exetel Staff
Posts: 143
Joined: Mon Jun 25, 2012 3:53 pm
Location: Australia

Re: Exemail mailservers listed on spam lists

Post by Arshad Hassim » Tue Jul 30, 2013 9:25 pm

Hi there,

Could you kindly provide us with the bounce back message in full along with its header.

cheers!

thomashouseman
Posts: 750
Joined: Thu Mar 18, 2004 12:06 pm
Location: Toongabbie
Contact:

Re: Exemail mailservers listed on spam lists

Post by thomashouseman » Wed Jul 31, 2013 8:35 am

All you ever wanted to know about AOL and their spam prevention measures: http://postmaster.aol.com/Postmaster.Errors.php and http://postmaster.aol.com/Postmaster.Tr ... ooting.php

ToeJam
Posts: 37
Joined: Thu Feb 05, 2009 10:48 am
Location: Perth

Re: Exemail mailservers listed on spam lists

Post by ToeJam » Tue Jan 21, 2014 4:03 pm

getting it in WA too just got this bounce message at EST 3:55PM

SMTP error from remote mail server after initial connection:
host as-av.iinet.net.au [203.0.178.180]: 554-icp-osb-irony-in7.iinet.net.au
554 Your access to this mail system from 220.233.0.21 has been rejected due to
the sending MTA's poor reputation. If you believe that this failure is in error,
please contact the intended recipient via alternate means.

KavindaS
Forum Admin
Posts: 2504
Joined: Wed Dec 23, 2009 3:59 pm
Location: Sydney

Re: Exemail mailservers listed on spam lists

Post by KavindaS » Tue Jan 21, 2014 5:16 pm

ToeJam wrote:getting it in WA too just got this bounce message at EST 3:55PM

SMTP error from remote mail server after initial connection:
host as-av.iinet.net.au [203.0.178.180]: 554-icp-osb-irony-in7.iinet.net.au
554 Your access to this mail system from 220.233.0.21 has been rejected due to
the sending MTA's poor reputation. If you believe that this failure is in error,
please contact the intended recipient via alternate means.
This has been already informed to our system administrators. Ticket ID: 7511985.

Post Reply