5 messages in net.sourceforge.lists.courier-usersRe: [courier-users] timeouts and ptr ...
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Lindsay HaisleyAug 24, 2007 9:52 am 
Sam VarshavchikAug 24, 2007 2:58 pm 
Lindsay HaisleyAug 24, 2007 6:42 pm 
Sam VarshavchikAug 24, 2007 6:53 pm 
Lindsay HaisleyAug 25, 2007 8:18 pm 
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Subject:Re: [courier-users] timeouts and ptr recordsActions...
From:Lindsay Haisley (fmou@fmp.com)
Date:Aug 24, 2007 6:42:44 pm
List:net.sourceforge.lists.courier-users

On Fri, 2007-08-24 at 17:58 -0400, Sam Varshavchik wrote:

I'd also like to have the option to drop SMTP connections outside of the LAN for which the IP address of the connecting host has no PTR record and won't reverse resolve to a name. Is there any way to do this in Courier?

No, not directly. The only thing you can do is to take the qmail approach, and have couriertcpd invoke your wrapper, that checks TCPREMOTEIP and TCPREMOTEHOST, and the invokes courieresmtpd itself.

In Gentoo's build of courier, the stock invocation of courieresmtpd looks like this.

/usr/sbin/couriertcpd [logger, pid and other options] [block options] -access=/etc/courier/smtpaccess.dat -address=0 465 /usr/bin/couriertls -server -tcpd /usr/sbin/courieresmtpd

Do I need to insert a wrapper of some sort in here? Are there any instructions, examples or prototypes available?

-- Lindsay Haisley | "In an open world, | PGP public key FMP Computer Services | who needs Windows | available at 512-259-1190 | or Gates" | http://pubkeys.fmp.com http://www.fmp.com | |