Mailing List Archive: exim: users

MX setup as an IP address

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frankd at iaw

Nov 10, 2009, 1:11 PM

Post #1 of 4 (819 views)
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MX setup as an IP address

Hi there,

We are using exim 4.67

Is there a way to let a certain domain though even though the MX is setup as
an IP addressinstead of a name? I know it¹s bad form, but this domain is
really screwing up one of our customer¹s ability to do business they need to
do.

We are not the host of the malformed MX record.

2009-11-10 15:27:39 H=dsl-vlan474-66-18-229-198.nucleus.com
(pavilionstructures.com) [66.18.229.198] sender verify fail for
<xxxx [at] pavilionstructures>: all relevant MX records point to non-existent
hosts or (invalidly) to IP addresses

Thanks
Frank

Frank DeChellis
President, Internet Access Worldwide
Welland, Ontario, Canada
www.iaw.com

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exim-users-20081202 at djce

Nov 10, 2009, 1:35 PM

Post #2 of 4 (777 views)
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Re: MX setup as an IP address [In reply to]

On Tue, Nov 10, 2009 at 04:11:37PM -0500, Frank DeChellis wrote:
> Hi there,
>
> We are using exim 4.67
>
> Is there a way to let a certain domain though even though the MX is setup as
> an IP addressinstead of a name? I know it¹s bad form, but this domain is
> really screwing up one of our customer¹s ability to do business they need to
> do.
>
> We are not the host of the malformed MX record.

There's "allow_mx_to_ip", a global boolean option. If you want something more
fine-grained, I suppose you could write a router with an appropriate "domains"
condition, and have the route_data using an "MX" dnsdb lookup.

--
Dave Evans
http://djce.org.uk/
http://djce.org.uk/pgpkey

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jgh at wizmail

Nov 10, 2009, 1:40 PM

Post #3 of 4 (799 views)
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Re: MX setup as an IP address [In reply to]

On 11/10/2009 09:11 PM, Frank DeChellis wrote:
> Is there a way to let a certain domain though even though the MX is setup as
> an IP addressinstead of a name? I know it¹s bad form, but this domain is
> really screwing up one of our customer¹s ability to do business they need to
> do.
>
> We are not the host of the malformed MX record.
>
> 2009-11-10 15:27:39 H=dsl-vlan474-66-18-229-198.nucleus.com
> (pavilionstructures.com) [66.18.229.198] sender verify fail for
> <xxxx [at] pavilionstructures>: all relevant MX records point to non-existent
> hosts or (invalidly) to IP addresses

Turn off sender-verify for that one sender domain combined with
coming from that one IP?

- Jeremy

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lennon at orcon

Nov 10, 2009, 1:47 PM

Post #4 of 4 (784 views)
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Re: MX setup as an IP address [In reply to]

On Tue, 2009-11-10 at 21:35 +0000, Dave Evans wrote:
> On Tue, Nov 10, 2009 at 04:11:37PM -0500, Frank DeChellis wrote:
> > Hi there,
> >
> > We are using exim 4.67
> >
> > Is there a way to let a certain domain though even though the MX is setup as
> > an IP addressinstead of a name? I know itÂ¹s bad form, but this domain is
> > really screwing up one of our customerÂ¹s ability to do business they need to
> > do.
> >
> > We are not the host of the malformed MX record.
>

Why don't you just ask the people who have a broken MX to just fix it.
you have to have a FQDN as an MX not an IP Address. Hacking your system
to allow it is bad.

The people who have the Broken MX will have problems , not just with you
sending them mail. but alot of the internet.

Thanks

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