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Topic # 193790 24-Mar-2016 12:24
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Firstly, I do not know if this is an ISP problem or not, but this seems as good a place as any to start.

 

I dont send a lot of emails but since yesterday afternoon (maybe earlier) I have been unable to email my parents who have a netsmart email account.

 

I have also sent an email to my gmail account ( as a test) and that has not appeared either.

 

To make matters complicated, one email (out of 7 or 8) did get through to Dad.

 

The rest have come back undeliverable quoting spamhaus or sorbs and with a link I'm not sure I should click on.

 

I didnt get an undeliverable report for the gmail message.

 

 

 

I think emails to some other addresses might be working, but only because I have not got an undeliverable report back for those, the recipients have not replied so I dont know for sure.

 

 My Dad has spoken to his ISP who have firmly batted the ball into Vodafone's court, no surprises there.

 

Any ideas as to what is happening?





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  Reply # 1519013 24-Mar-2016 12:57
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The return mail will have the link that will show the blacklist entry that has caused it to fail. It is probably just the sending server being blacklisted for too many spam complaints, but if you post the text of the rejection email then it will be easier to advise rather than just guessing.





Richard rich.ms



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  Reply # 1519016 24-Mar-2016 13:02
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I was a bit reluctant to post the return message, as it contains my and Dads email addresses.

 

Let me work out a way of doing that without sharing too much information.





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  Reply # 1519017 24-Mar-2016 13:04
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In the link or just the text? Take it out in anycase.





Richard rich.ms

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  Reply # 1519018 24-Mar-2016 13:07
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It's very likely, isp email servers are regularly blacklisted. It is a good reason again not to use isp email. If you enter the if into mxtoolbox.com, it will test it against some of the main blacklists.



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  Reply # 1519019 24-Mar-2016 13:08
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Here is the guts of one of the return messages :

 

-----Original Message-----
From: Mail Delivery System [mailto:Mailer-Daemon@smtpbounce6.ihug.co.nz]
Sent: Thursday, 24 March 2016 8:07 AM
To: me@vodafone.co.nz
Subject: Mail delivery failed: returning message to sender

 

 

 

This message was created automatically by mail delivery software.

 

 

 

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

 

 

 

    SMTP error from remote mail server after RCPT TO:<[removed]>:

 

    host mta2.netsmart.net.nz [202.27.83.110]: 554 5.7.1 Service unavailable; Client host [203.109.230.6] blocked using dnsbl.sorbs.net; Dynamic IP Addresses See:

 

    http://www.sorbs.net/lookup.shtml?203.109.230.6

 

 

 

------ This is a copy of the message, including all the headers. ------

 

 

 

Return-path: <[removed]>

 

Received: from pub.filter3.content.vf.net.nz (filter3.content.vf.net.nz) [10.80.49.3]

 

                by smtpbounce6.ihug.co.nz with esmtp

 

                (Exim 4.71 Ubuntu #1; VFNZ #581)

 

                id 1aio7m-0008Az-2y; Thu, 24 Mar 2016 08:07:22 +1300

 

X-Cloudmark-SP-Filtered: true

 

X-Cloudmark-SP-Result: =?us-ascii?q?v=3D2=2E1_cv=3DKe9yyVsD_c=3D1_sm=3D2_tr?=

 

 =?us-ascii?q?=3D0_a=3DQ901pV2jF75GJY5c+8APDQ=3D=3D=3A17?=

 

 =?us-ascii?q?_a=3D7OsogOcEt9IA=3A10_a=3DDAwyPP=5Fo2Byb1YXLmDAA=3A9_a=3DnrpA?=

 

 =?us-ascii?q?Y=5F4DuZv4fvAMnbMA=3A9?=

 

 =?us-ascii?q?_a=3DCjuIK1q=5F8ugA=3A10_a=3DL9H7d07YOLsA=3A10_a=3D9cW=5Ft1CCX?=

 

 =?us-ascii?q?rUA=3A10_a=3Ds5jvgZ67dGcA=3A10?=

 

 =?us-ascii?q?_a=3DyMhMjlubAAAA=3A8_a=3DSSmOFEACAAAA=3A8_a=3Dgqxzx4B=5F9rocy?=

 

 =?us-ascii?q?pAnXakA=3A9?=

 

 =?us-ascii?q?_a=3DgKO2Hq4RSVkA=3A10_a=3DUiCQ7L4-1S4A=3A10_a=3DhTZeC7Yk6K0A?=

 

 =?us-ascii?q?=3A10_a=3Dfrz4AuCg-hUA=3A10?=

 

X-IronPort-AV: E=Sophos;i="5.24,383,1454929200";

 

   d="scan'208,217";a="264209380"

 

X-Auto-Response-Suppress: OOF, AutoReply

 

Received: from 47-72-130-226.dsl.dyn.ihug.co.nz (HELO ENTERPRISE) ([47.72.130.226])

 

  by cust.filter3.content.vf.net.nz with ESMTP; 24 Mar 2016 10:06:05 +1300

 

From: "ME" <[removed]>

 

To: <[removed]>

 

Subject: gffhgfhgf

 

Date: Thu, 24 Mar 2016 10:06:00 +1300

 

Message-ID: <000301d18547$cd5f4480$681dcd80$@vodafone.co.nz>

 

MIME-Version: 1.0

 

Content-Type: multipart/alternative;

 

                boundary="----=_NextPart_000_0004_01D185B4.C4588C80"

 

X-Mailer: Microsoft Outlook 14.0

 

Thread-Index: AdGFR8zvoQQu8qJwSIi7kUScC4yg4w==

 

Content-Language: en-nz

 

 

 

This is a multipart message in MIME format.

 

 

 

------=_NextPart_000_0004_01D185B4.C4588C80

 

Content-Type: text/plain;

 

                charset="us-ascii"

 

Content-Transfer-Encoding: 7bit

 

 

 

------=_NextPart_000_0004_01D185B4.C4588C80

 

Content-Type: text/html;

 

                charset="us-ascii"

 

Content-Transfer-Encoding: quoted-printable

 

<html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"><head><META = HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 14 = (filtered medium)"><style><!--

 

/* Font Definitions */

 

@font-face

 

                {font-family:Calibri;

 

                panose-1:2 15 5 2 2 2 4 3 2 4;}

 

/* Style Definitions */

 

p.MsoNormal, li.MsoNormal, div.MsoNormal

 

                {margin:0cm;

 

                margin-bottom:.0001pt;

 

                font-size:11.0pt;

 

                font-family:"Calibri","sans-serif";

 

                mso-fareast-language:EN-US;}

 

a:link, span.MsoHyperlink

 

                {mso-style-priority:99;

 

                color:blue;

 

                text-decoration:underline;}

 

a:visited, span.MsoHyperlinkFollowed

 

                {mso-style-priority:99;

 

                color:purple;

 

                text-decoration:underline;}

 

span.EmailStyle17

 

                {mso-style-type:personal-compose;

 

                font-family:"Calibri","sans-serif";

 

                color:windowtext;}

 

.MsoChpDefault

 

                {mso-style-type:export-only;

 

                font-family:"Calibri","sans-serif";

 

                mso-fareast-language:EN-US;}

 

@page WordSection1

 

                {size:612.0pt 792.0pt;

 

                margin:72.0pt 72.0pt 72.0pt 72.0pt;}

 

div.WordSection1

 

                {page:WordSection1;}

 

--></style><!--[if gte mso 9]><xml>

 

<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DEN-NZ link=3Dblue = vlink=3Dpurple><div class=3DWordSection1><p = class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>

 

------=_NextPart_000_0004_01D185B4.C4588C80--





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  Reply # 1519022 24-Mar-2016 13:13
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Yes it is blacklisted http://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a47.72.130.226&run=toolpage



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  Reply # 1519024 24-Mar-2016 13:17
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Indulge me... what exactly is blacklisted?

 

Vodafone, or me, or something else?





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  Reply # 1519034 24-Mar-2016 13:25
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Not showing blocked on the checker. There is a large range blocked and a smaller range exclusion applied to the /26 ranget that the mailservers IP is in. The date on it is "exDUHL" entries [19:39:33 23 Mar 2016 GMT+00]. so only recently been added, possibly VF started to use another range for mail servers etc and netsmart are a bit agressive on their caching or something.

 

 

 

Give it time and try again, it is all setup fine by vodafone. The presense of your IP on a blacklist is correct as it is dynamic, the rejection is the vodafone mail server which shouldnt be happening. If its still doing that then netsmart need to sort out their processing of the sorbs data.





Richard rich.ms



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  Reply # 1519036 24-Mar-2016 13:27
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 So essentially there is nothing I can do? Just wait......





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  Reply # 1519037 24-Mar-2016 13:29
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kiwifidget:

 

Indulge me... what exactly is blacklisted?

 

Vodafone, or me, or something else?

 

 

There are lists of IP addresses that have no business running a mail server that directly sends to other mail servers, usually dynamic ones assigned to end users connections, but also web servers and others that would only direclty send if they were compromised. Those are policy lists, there are other lists for places that are known spam havens, like crappy shared webhosting, whole countries, etc.

 

So the first thing any mail server does on an incoming connection is check those blacklists and tell the sending server to go away if its on the list. That stops most spam from people that get their computers compromised.

 

Vodafones mail server is in a list that covers a massive range of IP addresses, and the exception was only added at that time I posted, so if it was running mail on that server before that was added then a rejection is correct.





Richard rich.ms

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  Reply # 1519040 24-Mar-2016 13:32
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kiwifidget:

 

 So essentially there is nothing I can do? Just wait......

 

 

Use the time to investigate changing to a non ISP email solution that has people who work on resolving problems like this quickly.

 

gmail can still collect your old mail from VF via pop if you want to so you can gradually move over.





Richard rich.ms

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  Reply # 1519041 24-Mar-2016 13:33
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I get these blocks from time on specific servers because my preferred email provider, gmx, lets spam through. They usually clear up after a day or two.

 

 

 

 

 

 





I reject your reality and substitute my own. - Adam Savage
 




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  Reply # 1519055 24-Mar-2016 13:43
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 OK, I'm starting to get a handle on this.

 

Other VF email users would also have been affected if they were sending emails to addresses whose mail servers blocked emails based on spamhaus or sorbs?

 

It's not my routers external IP address that is on the blacklist.

 

Netsmart must be using spamhaus and/or sorbs to reject incoming emails, but dont necessarily refresh their cached copy of the blacklists frequently enough as they are still rejecting my emails to Dad even though the VF mail server IP address is now no longer on the blacklist.

 

Am I on the right track?





Life is too short to remove USB safely.




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  Reply # 1519058 24-Mar-2016 13:44
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richms:

 

kiwifidget:

 

 So essentially there is nothing I can do? Just wait......

 

 

Use the time to investigate changing to a non ISP email solution that has people who work on resolving problems like this quickly.

 

gmail can still collect your old mail from VF via pop if you want to so you can gradually move over.

 

 

I use Outlook (gasp!!), would that make any difference?





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  Reply # 1519070 24-Mar-2016 14:10
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Prettymuch right track. Last time I played with a mail server, they used DNS to query the spam lists, so piece of cake to run a DNS server that caches things far too long. Makes it faster to reject the masses of crap that comes in.

 

Someone more involved with current mail server admin can probably add more detail on whose fault it is. But its email. Never guarenteed to work like anything on the internet.





Richard rich.ms

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