1

Topic: mail server appears to be on a dynamic IP

==== Required information ====
- iRedMail version: latest
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): ldap
- Linux/BSD distribution name and version: ubuntu
- Related log if you're reporting an issue:
====

Can you let me know which rule is blocking this email:

Helo command rejected: ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (dynamic)
Diagnostic information for administrators:

Generating server: gateway.domain.com.au

ron@ourdomain.net.au
mail.ourdomain.net.au #<mail.ourdomain.net.au #5.7.1 SMTP; 554 5.7.1 <gateway.domain.com.au>: Helo command rejected: ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (dynamic)> #SMTP#

Original message headers:

X-domain-MailScanner-Watermark: 1406613540.58365@a4EWRYwoWcmGjH/s9fBR6g

Return-Path: <helen@domain.com.au>

Received: from BIO-SBS.bio.local (bio-sbs.bio.local [192.168.0.2])   by

gateway.domain.com.au (8.13.8/8.13.8) with ESMTP id s6M5wgDZ030641     for

<ron@ourdomain.net.au>; Tue, 22 Jul 2014 15:58:42 +1000

Received: from BIO-SBS.bio.local ([fe80::6528:9ab2:d11f:d92]) by

BIO-SBS.bio.local ([fe80::6528:9ab2:d11f:d92%11]) with mapi; Tue, 22 Jul 2014

16:04:27 +1000

From: Helen <helen@domain.com.au>

To: "ron@ourdomain.net.au" <ron@ourdomain.net.au>

Date: Tue, 22 Jul 2014 16:04:26 +1000

Subject: help

Thread-Topic: help

Thread-Index: Ac+lcsVn7I7qpAwqTYq75OIrvrCQ4w==

Message-ID: <C8B1DFFA1792AE418A94DDBC42B31BDA04E5B6A52C20@BIO-SBS.bio.local>

Accept-Language: en-US, en-AU

Content-Language: en-US

X-MS-Has-Attach:

X-MS-TNEF-Correlator:

acceptlanguage: en-US, en-AU

Content-Type: multipart/alternative;

        boundary="_000_C8B1DFFA1792AE418A94DDBC42B31BDA04E5B6A52C20BIOSBSbiolo_"

MIME-Version: 1.0

X-domain-MailScanner-Information: Please contact the ISP for more information

X-domain-MailScanner: Found to be clean

X-domain-MailScanner-From: helen@domain.com.au

X-Spam-Status: No

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2

Re: mail server appears to be on a dynamic IP

Search "dynamic" in file /etc/postfix/helo_access.pcre.

3

Re: mail server appears to be on a dynamic IP

Already been there, just can't work out which rule is triggering the above rejection

4

Re: mail server appears to be on a dynamic IP

This line:

/(dynamic)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})

By the way, it checks HELO identity sent by sender server, not checking IP address.

5

Re: mail server appears to be on a dynamic IP

Thanks Zhang - I can see how it works now.