Gordan Bobic wrote:
> 
> But now that you mentioned it - is there a way to make Courier make an 
> additional check?
...
> Normally, this is not too plausible to check if from is for a non-locally 
> hosted domain, but if from is from a locally hosted domain, can we make 
> Courier check if from is deliverable, and if not, reject with "unknown 
> sender" or some such?

You can make courier do almost anything. :)

http://phantom.dragonsdawn.net/~gordon/courier-pythonfilter/testfilters/localsenders.py

I haven't tested that, but that's more or less how you could test 
"local" sender addresses.

> On a separate note, is it possible to get Courier to do return path 
> verification? i.e. for the from address, look up mx, connect, and do:
> HELO, MAIL FROM, RCPT TO, QUIT, just to see if the FROM address is 
> deliverable?

Yes, the "dialback" pythonfilter does that.  It wasn't usable for a long 
time, due to limitations in Python, but should be these days.


-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
courier-users mailing list
[email protected]
Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users

Reply via email to