Hi All,

Server:
ipa-server-2.1.3-9.el6.x86_64
sssd-1.5.1-66.el6_2.3

Client:
ipa-client-2.1.3-9.el6.x86_64


I've got Postfix working with IPA and to be honest it was actually very
easy. I simply setup a standard postfix server, configured the IPA
client and when mail was delivered, postfix detected the UID's from IPA
and delivered the mail. 

So I thought to myself, this is one of the most important services we
have. What would happen if the SSSD client failed for some reason on the
postfix server?

As expected the postfix server bounces the email back to it's sender. 
-------------------------------------------------------------------------
This is the mail system at host pan.example.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<cr...@safevm-craig.example.com> (expanded from
    <cr...@example.com>): host
    safevm-craig.example.com[192.168.0.28] said: 550 5.1.1
    <cr...@safevm-cht.example.com>: Recipient address rejected:
User
    unknown in local recipient table (in reply to RCPT TO command)
-------------------------------------------------------------------------

Before I start investigating backup mail servers, different posfix
queues. Just thought I'd ask if anyone else has setup their one solution 
to ensure the safety of mail delivery with IPA? 

cya

Craig

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