OSEC

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Subject: Needed: Pros & Cons for each UCE measure
From: Scott Chapman (scottlund.com)
Date: Thu Nov 02 2000 - 16:59:26 CST

The docs are somewhat skimpy on the details around each UCE
measure. It would be VERY useful to newbies configuring Postfix to
have more detailed descriptions of each UCE measure allowed in
Postfix.

For example, I'm considering the smtpd_helo_restrictions options:

reject_invalid_hostname
reject_unknown_hostname
reject_non_fqdn_hostname

Do these ever stop valid email?

Are details available of which "popular PC mail clients" send HELO
greetings with naked IP addresses so we can find out if the current
versions are doing so or contact the authors and ask them to fix the
progams?

Postfix looks like a really useful tool but I'd like to see the
documentation go deeper on some of these areas.

Cordially,
Scott.