Red Hat Bugzilla – Bug 132512
Add http proxy blocking to sendmail
Last modified: 2007-11-30 17:10:49 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2)
Description of problem:
It is possible to reliably block mail/spam from open http proxies by
adding this lines to the sendmail configuration:
This then causes sendmail to block any smtp session that uses POST,
CONNECT etc. A typical log entry looks like this:
[220.127.116.11]: probable open proxy: command=POST / HTTP/1.0\r\n
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Receive spam from open http proxy
Actual Results: Spam received
Expected Results: It could be blocked...
It is hard to believe that email from http proxies is used for
anything but spamming.
I'm also interested in having this feature enabled per default...*narf*
Bugzilla is believing, I'm adding the keyword FutureFeature.
The support for _FFR_BLOCK_PROXIES has been dropped by sendmail.
Closing as CANTFIX.