[Mimedefang] backup MX server & checking for valid users

[alan premselaar]

Jim,

On 5/14/03 11:12 PM, "Jim McCullars" <jim at info.uah.edu> wrote:

> 
> 
> On Wed, 14 May 2003, alan premselaar wrote:
> 
>> now, i've read the docs re: that function, and added a filter_recipient
>> subroutine in my filter, but it doesn't appear to be doing anything.
> 
>  Only thing I can think of is, there is something you have to put in
> your startup script to make sure that mimedefang gets passed the "r"
> option (in my startup, it's MX_RECIPIENT_CHECK=yes).  Also, remember that
> when you do a reject in filter-recipient, it rejects the recipient, not
> the message (assuming there are multiple RCPT-TO).  I'm not sure how you
> tell that it's not doing anything, but here is one test.  Connect to your
> backup MX and send mail to someone.  Then look at the sendmail logs for
> your primary MX.  You should see a log message that the backup MX made a
> connection.

in my startup script -r is shown as RELAY_CHECK (which is being passed, as
well as -s)
to test it, i opened a terminal window connected to my primary MX machine
and tail -f /var/log/maillog'd while on another machine i telneted on port
25 to my backup MX machine and ran thru the SMTP steps by hand:

ehlo <domainname>
mail from: <my home email address>
rcpt to: <invalid email address at valid domain>

which it replied "Recipient ok..." to, and no queries showed up in the
primary MX machine's maillog.

if i take it all the way thru the DATA stage and send some arbitrary data,
it returns with "Message accepted for delivery" , passes the message to my
primary MX server which rejects it with a "Unknown user" error back to the
secondary MX server, which then sends me an email saying the transaction
failed.  (not the expected results)

> 
>> need it to do (replacing the hostnames with the appropriate ones) but it
>> doesn't appear to be getting called.  do i need to call it myself from some
>> other part of the filter? the man page wasn't all that clear about it.
> 
>  No, it should just go into filter_recipient.  I must admit, I have
> never used that function, only read about it.
> 
ok, that's what i thought, based on the documentation. Just wanted to make
sure i wasn't missing anything.

>> are there any specific sendmail configuration settings i need to have in
>> place for this to work also?
> 
>  I don't use the confSMART_HOST or the mailertable feature in my
> sendmail, so I can't say for sure there, either.
> 
mind if i ask how you have your secondary MX server(s) setup?

thanks,

alan