failover - ReadList.com

5 msg	postfix/ldap - can one special_result_attribute...
2 msg	mailing list goes to bulk / spam folder
9 msg	SMTP Auth on multiple instances
4 msg	Auto-response, but not vacation
4 msg	bypassing reject_rbl_client for certain recipie...
12 msg	rewritten log
11 msg	Per user SPF and Anti Virus checks
9 msg	Instance on policies
2 msg	Removing internal mailers from headers
7 msg	Open Relay issue
1 msg	Messages not picked up from active queue
3 msg	Semantics question about myorigin
22 msg	mime, header_checks question
3 msg	problem using greylist and gmail
9 msg	451 4.3.0 Error: queue file write error and vir...
5 msg	Network_biopair_interop errors
1 msg	what means error msg in auth.log (failed to map...
5 msg	problem upgrading from 2.4.5 to 2.5.1

failover
\ Bernhard D Rohrer (29 Mar 2008)
. \ (Wietse Venema) (29 Mar 2008)
. . \ Gary V (30 Mar 2008)
. . . \ Gary V (30 Mar 2008)
. . . \ Gary V (30 Mar 2008)

13 msg	smtp_fallback_relay

Subject:	failover
Group:	Postfix-users
From:	Bernhard D Rohrer
Date:	29 Mar 2008

Hi folks

I want to achieve the following: my MTA only accepts emails from one
other MTA which does all the spam filtering and bounces everybody else.

the setup we have is

mydomain IN MX 30 mymta
mydomain IN MX 40 mailfilter

so I want to setup my postfix to make other mtas use the mailfilter
while the mailfilter can post to me. I have used the
smtp_sender_restrictions: check_client_access clause to wihitelist the
mailfilter and reject everything else. When i test this i get a 554
5.7.1 Sender address rejected: Access denied. Will this make the sending
MTA redirect to the mailfilter? I am a bit dubious.

Thanks for any insights

Bernhard

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