Bouncing Emails.

[Peterkb]

This week seems to be bounce emails week. Suddenly emails to commonly used addresses are bouncing especially those with pdf attachments.
Afrihost ( My ISP) says it is not their system but today when I replied to one of their support emails it bounced! No attachments.
Has MTN Business adjusted their spam server in some way?

Frustrated - Peter

 

[noswal]

 

[grim]

This week seems to be bounce emails week. Suddenly emails to commonly used addresses are bouncing especially those with pdf attachments.
Afrihost ( My ISP) says it is not their system but today when I replied to one of their support emails it bounced! No attachments.
Has MTN Business adjusted their spam server in some way?

Frustrated - Peter

Post the bounce reply you're getting here, include the destination domain(*@domain.co.za)) but not the entire email address.

 

[Peterkb]

Post the bounce reply you're getting here, include the destination domain(*@domain.co.za)) but not the entire email address.

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:

ac*@afrihost.com
SMTP error from remote mail server after end of data:
host spe.spambox.co.za [196.38.95.213]: 550 41.181.159.169 is not allowed to send mail from alpinecases.co.za. Please see http://www.openspf.net/Why?scope=mfrom;identity=*@alpinecases.co.za;ip=41.181.159.169

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

Return-path: <*@alpinecases.co.za>
Received: from [105.236.110.3]
by smtp.mtnbusiness.co.za with esmtp (Blowfish SMTP)
(envelope-from <*@alpinecases.co.za>)
id 1UPUTc-0008Sl-QM
for ac*@afrihost.com; Tue, 09 Apr 2013 11:04:28 +0200
Received: from 192.168.0.1 for ac*@afrihost.com; Tue, 09 Apr 2013 10:36:16 +0200
Message-ID: <[email protected]>
Date: Tue, 09 Apr 2013 10:36:16 +0200
From: P** B** <*@alpinecases.co.za>
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130328 Thunderbird/17.0.5
MIME-Version: 1.0
To: ac*@afrihost.com
Subject: Re: [#FHM-210-86072]: ClientZone - Support Request : Domains
References: <[email protected]>
In-Reply-To: <[email protected]>
Content-Type: multipart/alternative;
boundary="------------030404050804060503010007"
X-Antivirus: avast! (VPS 130408-2, 2013/04/08), Outbound message
X-Antivirus-Status: Clean

This is a multi-part message in MIME format.
--------------030404050804060503010007
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

 

[Daniedj]

Is your SMTP supposed to be MTNBusiness using a connection from Afrihost? Your MX seems to point to cm.snowballeffect.net though.

 

[XperiAnce]

Your SPF record is as follows:

alpinecases.co.za text =
"v=spf1 +a +mx -all"

This means that the only servers allowed to send mail for '@alpinecases.co.za' are:

Name: alpinecases.co.za
Address: 196.25.207.21

and

mail.alpinecases.co.za internet address = 196.201.6.77

Your mail, however, is coming from an SMTP server (or, most likely, just your computer) 41.181.159.169 - this isn't allowed in your SPF record, so it's bouncing.

Get whoever manages your domain and mail to adjust your SPF record, alternatively send your email from the SMTP server located at 196.25.207.21 or 196.201.6.77.

 

[Peterkb]

Beyond me

Your SPF record is as follows:

alpinecases.co.za text =
"v=spf1 +a +mx -all"

This means that the only servers allowed to send mail for '@alpinecases.co.za' are:

Name: alpinecases.co.za
Address: 196.25.207.21

and

mail.alpinecases.co.za internet address = 196.201.6.77

Your mail, however, is coming from an SMTP server (or, most likely, just your computer) 41.181.159.169 - this isn't allowed in your SPF record, so it's bouncing.

Get whoever manages your domain and mail to adjust your SPF record, alternatively send your email from the SMTP server located at 196.25.207.21 or 196.201.6.77.

Thanks. Afraid this is above my pay grade. Will forward to Afrihost and hope that they can sort it out with MTN business who they now use for their internet traffic.

 

[guest2013-1]

This is why you need to authenticate to your own mail server first and then send mail. I think what's happening here is you're sending mail through Afrihost's SMTP instead for some reason.

Also note That some ISP's do intercept ports like 25, so it could be that you're using your SMTP server etc, but they're just intercepting and relaying through their own mail servers (for some gay reason)

So I'd suggest you use the port 587, they shouldn't intercept it and relay it through their own mail servers and your SPF should check out fine

 

[Peterkb]

Fixed - Thanks

Thanks for the help. All fixed and not Afrihost or MTN's fault. Snowball re-created the domain last week after a server problem and forgot to correct the SPF record.