[Pkg-exim4-users] Getting 550 relay not permitted, I tried all sorts of things still getting error

[Nate Homier]

On 03/28/2013 11:10 PM, Nate Homier wrote:
> My problem: Delivery to the following recipient failed permanently:
> 
>      public at universal-mechanism.org
> 
> Technical details of permanent failure:
> Google tried to deliver your message, but it was rejected by the server
> for the recipient domain universal-mechanism.org by homier.dyndns.org.
> [184.166.103.9].
> 
> The error that the other server returned was:
> 550 relay not permitted
> 
> All email is rejected.
> 
> 2 mx records.  mxin.mxes.net which receives and sends, it's my
> smarthost.  And homier.dyndns.org which has EXIM4 running and where the
> problems are.  Check my DNS record below.
> 
> I have my domain universal-mechanism.org and I use Tuffmail as my
> smarthost, meaning Tuffmail receives and sends mail on behalf of my
> domain via an mx record.  Recently I decided to setup EXIM4 with
> Internet site selected in exim4-config.
> 
> Exact settings are:
> internet site; mail is sent and received directly using SMTP
> Mail name: universal-mechanism.org
> Listens on all interfaces
> Other destinations for which mail is accepted:
> saturn.hyperion.local; homier.dyndns.org; universal-mechanism.org
> Domains to relay mail for:
> universal-mechanism.org; homier.dyndns.org
> Machines to relay mail for: blank
> 
> My DNS is as follows:
> SOA Record
> UNIVERSAL-MECHANISM.ORG.	3600	IN	SOA	ns09.domaincontrol.com.	dns.jomax.net (
> 				2013032815
> 				28800
> 				7200
> 				604800
> 				3600
> 				)
> 
> ; A Records
> @	3600	IN	A	64.251.17.25
> 
> ; CNAME Records
> www	3600	IN	CNAME	@
> 
> ; MX Records
> @	3600	IN	MX	0	mxin.mxes.net
> @	3600	IN	MX	10	homier.dyndns.org
> 
> ; TXT Records
> @	3600	IN	TXT	"v=spf1 include:customer-spf.mxes.net ~all"
> @	3600	IN	TXT	"v=spf1 include:homier.dyndns.org ~all"
> 
> ; NS Records
> @	3600	IN	NS	ns09.domaincontrol.com
> @	3600	IN	NS	ns10.domaincontrol.com
> 
> Thank you.  Nate
> 
I read the FAQ here at
http://wiki.debian.org/PkgExim4UserFAQ#When_I_try_to_deliver_a_message_via_SMTP_to_my_Exim.2C_I_get_.22550_relay_not_permitted.22

But I don't want to act as a smarthost.  I just want to act as a backup
MX server.  Do I really have to make myself an open relay or do I not
understand the FAQ.  I only want to accept mail for
universal-mechanism.org and no one else.